Answer:
The answer is 20
Step-by-step explanation:
0.4 = 40%
0.4 * 50 = 20
You pick a card at random. Without putting the first card back, you pick a second card at random. Card numbers are 2, 3, 4, and 5 What is the probability of picking a 2 and then picking a number greater than 3? (Write your answer as a fraction or whole number.)
Answer:
1/6
Step-by-step explanation:
When trying to calculate the probability of a sequence of events you need to multiply the probability of the first event happening by the probability of the second event happening. There are a total of 4 numbers (2,3,4,5) and only one is a 2. Therefore the probability of the first pick being a 2 is 1/4. Now there are only 3 cards left (3,4,5) and only 2 numbers are greater than 3 so the probability of picking one of these cards is 2/3. Now that we have both of these probabilities we simply multiply them together.
1/4 * 2/3 = 2/12 or 1/6
Therefore, the probability of picking a 2 and then picking a number greater than 3 is 1/6
Samuel is 4 1/6 feet tall. His dad is 5 3/4 feet tall.How much taller is Samuels dad then Samuel
Answer:
1 7/12
Step-by-step explanation:
Just subtract the fractions if you cant do it by head or paper use a calc so 5 3/4 - 4 1/6= 1 7/12 samuels dad is 1 7/12 taller than samuel.
Answer:
Step-by-step explanation:
idj
help please 12 points
Answer:
7/5
Step-by-step explanation:
Geometry What’s the answer to 5x-6y= 33 and 2x+y = -14
Answer:
X=-3 y=-8
Step-by-step explanation:
[tex]5x - 6y = 33 \\ y = - 14 - 2x \\ [/tex]
Put the second one in first
[tex]5x - 6( - 14 - 2x) = 33 \\ 5x + 84 + 12x = 33 \\ 17x = - 51 \\ x = - 3[/tex]
[tex]y = - 14 - 2 \times ( - 3) \\ y = - 8[/tex]
Will give Brainlyest!
Find the measure of the vertex angle.
Answer:
∠ Y = 34°
Step-by-step explanation:
Since XY = ZY then the triangle is isosceles and the base angles are congruent, thus
∠ X = ∠ Y , that is
6x - 23 = 4x + 9 ( subtract 4x from both sides )
2x - 23 = 9 ( add 23 to both sides )
2x = 32 ( divide both sides by 2 )
x = 16
Thus
∠ Z = 4x + 9 = 4(16) + 9 = 64 + 9 = 73° = ∠ X
Hence
vertex angle Y = 180° - (73 + 73)° = 180° - 146° = 34°
We should know that 8 = 2. To see how this is equivalent to 8% = 2 we can solve the equation 8" - 2. To
do this, we can rewrite the equation as:
(2")" = 2
How can we now use this equation to see that 8 1/3=2
9514 1404 393
Answer:
show n = 1/3rewrite (2^3)^n as 8^(1/3)Step-by-step explanation:
By the rules of exponents, ...
(a^b)^c = a^(bc)
__
(2^3)^n = 2^1 . . . . . given
2^(3n) = 2^1 . . . . . . rule of exponents
3n = 1 . . . . . . . . . . . equate exponents
n = 1/3 . . . . . . . . . . divide by 3
Recognize that 2^3 = 8, and 2^1 = 2, then substitute into the given equation:
8^(1/3) = 2
Can someone please help me I don’t understand!!!!
Answer:
its -3
Step-by-step explanation:
my explanation is in your comments whoops
Manuel wants to earn at least $44 trimming trees. He charges $6 per hour and pays $4 in equipment fees. What are the possible numbers of hours Manuel could trim trees? Use (t) for the number of hours. Write your answer as an inequality solved for (t).
Given:
Manuel wants to earn at least $44 trimming trees.
He charges $6 per hour and pays $4 in equipment fees.
To find:
The possible numbers of hours Manuel could trim trees.
Solution:
Let t be the numbers of hours Manuel could trim trees.
Earnings of Manuel in one hour = $6
Earnings of Manuel in t hour = $6t
He pays $4 in equipment fees. So, we will subtract this from the income.
[tex]\text{Total earnings}=6t-4[/tex]
Manuel wants to earn at least $44 trimming trees. It means, total earnings must be greater than or equal to 44.
[tex]6t-4\geq 44[/tex]
[tex]6t\geq 44+4[/tex]
[tex]6t\geq 48[/tex]
Divide both sides by 6.
[tex]t\geq \dfrac{48}{6}[/tex]
[tex]t\geq 8[/tex]
Therefore, the required number of hours must be greater than or equal to 8 hours.
help please name the meidem of triangle MNO please i really need help or explain how to figure it out
Answer:
If you find the middle of any side of a triangle, you have found its midpoint. From that midpoint, you can construct a line segment to the opposite interior angle. That constructed line from the midpoint of a side to the opposite interior angle is a median.
Step-by-step explanation:
why is 2.7 not resaonblle for 0.3 x 0.9
Answer:
because the answer of 0.3 times 0.9 is 0.27
Step-by-step explanation:
Answer: 0.27
Step-by-step explanation: When you multiply 0.3 x 0.9 you get 0.27
Cameron is designing a calendar as a fund-raising project for math class. The cost of printing is $500, plus $2.50 per calendar. Write an equation in slope-intercept form that models the total cost of printing the calendars.
a
y=2.50x-500
b
y=500x-2.50
c
y=500+2.50x
d
y=2.50x+500
Each calendar will sell for $5.00 each. Write an equation to model the total income, y, for selling x calendars.
a
y=5.00x
b
y=-5.00x
c
x=5.00y
d
x=-5.00y
Cameron estimates that the math class will sell 200 calendars. What will the total cost be?
a
1000
b
1500
c
500
d
1250
Cameron estimates that the math class will sell 200 calendars. What will the total income be?
a
1250
b
500
c
1000
d
1500
Determine how effective the fundraising project will be. Will there be a profit or a loss? If so, how much?
a
yes, they will make $500
b
no, they will lose $500
c
yes, they will make $1000
d
no, they will break even
Answer: the answer is d :)
The equation to represent the total cost of printing the calendars is y=500+2.50x.
What is the slope intercept form?The slope intercept form of a straight line is one of the most common forms used to represent the equation of a line. The slope intercept formula can be used to find the equation of a line when given the slope of the straight line and the y-intercept.
The standard form of the slope intercept form is y=mx+c.
1) Given that, the cost of printing is $500, plus $2.50 per calendar.
Let the number of calendars be x and let the total cost be y.
So, the equation is y=500+2.50x
2) Each calendar will sell for $5.00 each.
The total income, y, for selling x calendars.
So, the total income is y=5.00x
Cameron estimates that the math class will sell 200 calendars.
So, the total cost = 5.00×200
= $1000
Now, y=500+2.50x
Substitute x=200 in y=500+2.50x, we get
y=500+2.50×200
y=1000
Hence, option D is the correct answer.
Therefore, the equation to represent the total cost of printing the calendars is y=500+2.50x.
To learn more about the slope intercept form visit:
brainly.com/question/9682526.
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Help me with my math ASAP!!!!
Answer:
[tex]f[/tex] = 78
[tex]g[/tex] = 3.5
Step-by-step explanation:
First we need to find [tex]f[/tex].
We can use the equation [tex]72 + (f + 30) = 180[/tex] to solve for [tex]f[/tex].
We can then change that equation to [tex]72 + f + 30 = 180[/tex], since the Commutative Property of Addition says that you can have any addition in any order.
Now, we can solve the equation.
[tex]102 + f = 180\\(102 - 102) + f = 180 - 102\\f = 78[/tex]
Now that we solved [tex]f[/tex], we can now solve for [tex]g[/tex].
Since 25 equals [tex]8g -3[/tex], we can solve the equation [tex]8g - 3 = 25[/tex].
Here is how you solve it:
[tex]8g - 3 = 25\\8g + (-3 + 3) = 25 + 3\\8g = 28\\g = \frac{28}{8}[/tex]
Since [tex]\frac{28}{8}[/tex] equals 3.5, which is the simplest form, that is the answer.
Hope this helps, and please mark me brainliest! :)
What is the volume of a sphere with a diameter of 32.5 m, rounded to
the nearest tenth of a cubic meter? (PLEASE ROUND)
Answer:
Step-by-step explanation:
Givens: d = 32.5 m
Formula: V = 4/3 pi r^3
Solution
r = d/2
r = 32.5/2
r = 16.25
V = 4/3 * 3.14 * (16.25)^3
V = 17965.05 to the nearest tenth is
V = 17965.1
Answer:
≈17974.2 m
Step-by-step explanation:
\text{Volume of a Sphere:}
Volume of a Sphere:
V=\frac{4}{3}\pi r^3
V=
3
4
πr
3
\text{radius} = \frac{\text{diameter}}{2} = \frac{32.5}{2}=16.25
radius=
2
diameter
=
2
32.5
=16.25
meters
\text{Plug in:}
Plug in:
\frac{4}{3}\pi (16.25)^3
3
4
π(16.25)
3
17974.1642186
17974.1642186
Use calculator
\approx 17974.2\text{ m}^3
≈17974.2 m
3
Round to the nearest tenth
what is the power of x in this equation 2x + 9 = 21?
a.2
b.6
c.9
d.15
Answer:
X = 6
Step-by-step explanation:
Answer:
b. 6
Step-by-step explanation:
2x + 9 = 21
then you subtract 9 from each side
2x = 12
then you divide 2 from each side
x = 6
Hope this helps dude ! ^-^
In 12.86 which digit is in the hundredths place?
Answer:
6.
Step-by-step explanation:
Answer: The 6, in 12.86, is in the hundredths place.
Hope this helps!
i need help finding the answer for 5(3x2 + 9x) – 14
Answer:
15x2 + 45x - 14
Step-by-step explanation:
Equation at the end of step 1
(5 • (3x2 + 9x)) - 14
STEP 2:
STEP 3 :
Pulling out like terms
3.1 Pull out like factors :
3x2 + 9x = 3x • (x + 3)
Equation at the end of step 3 :
15x • (x + 3) - 14
STEP 4 :
Trying to factor by splitting the middle term
4.1 Factoring 15x2+45x-14
The first term is, 15x2 its coefficient is 15 .
The middle term is, +45x its coefficient is 45 .
The last term, "the constant", is -14
The population of a town was 25,000 people. Then 3,200 people moved away. What was the percent of decrease?
Group of answer choices
Answer:
12.8%
Step-by-step explanation:
25000 - 3200 = 21800
21800/25000 = 87.2%
100 - 87.2 = 12.8
12.8%
Find the third side in simplest radical form: deltamath pls help asap!!
Answer:
39
Step-by-step explanation:
- a^2 + b^2 = c^2 (hypotenuse)
- (80)^2 + b^2 = (89)^2
- rearrange to get
[tex]\sqrt{(89)^2-(80)^2} = b\\b= 39[/tex]
PLS HELP SIMPLIFY -3(2y-5)
Answer:
-6y+15
is the answer yeeeeeeee
Help!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
a
Step-by-step explanation:
hbhbkbbhhkbhbhkjk
Use the simple interest formula. $5000 at 5% for 2 years. Find the amount of interest and the total amount (principal + interest)
Answer:
interest = $500, total amount = $5500
Sorry about the other person
Hope this helps!
I need helo on that.
Answer:
Step-by-step explanation:
to find out the coresponding sides and angles draw 2 triangles that are the same and label them in same ORDER (I did counterclock wise) will help you see better the parts
L. T
Δ Δ
J. K. C. O
JK≅ CO, JL≅CT, KL≅OT
∠J≅∠C, ∠L≅∠T, ∠K≅∠O
ΔTRI≅ΔAGN because corsponding parts are congruent
∠I≅∠N because are coresonding angles
Solve for X and Solve for Y please help due in the morning
A container has peppermint gum and spearmint gum. There are 18 pieces of peppermint gum in the container and the ratio of peppermint gum to spearmint gum is 2 : 3. Find the number of pieces of spearmint gum in the container.
I WILL GIVE YOU BRAINLIEST PLEASE HELP
Answer:
27 is your answer
Step-by-step explanation:
if 2;3 is your ratio and u have 18 peppermint gum then divide 18 by 2 and u get 9 then u multiply 9 by 3 and u get 27
The total number of spearmint gums will be 27
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is that a container has peppermint gum and spearmint gum. There are 18 pieces of peppermint gum in the container and the ratio of peppermint gum to spearmint gum is 2 : 3.
Let the number of spearmint gum be {x}. So, we can write -
2/3 = 18/x
{x} = (18 x 3)/2
{x} = 27
Therefore, the total number of spearmint gums will be 27.
To solve more questions on algebraic expressions, visit the link below -
brainly.com/question/1041084
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which friend is correct? Tyson or Tyra and why?
Answer:
The correct one is Tyson
Step-by-step explanation:
Because dealership B slope is lower than dealership A so that means, dealership A pays a higher commission than dealership B
mark is eating holiday rolls very quickly at 7 rolls per minute.He says he will eat 77 rolls in 12 minutes. is mark correct? if not what should the correct answer be?
Answer:No he is incorrect the correct answer would be 11
Step-by-step explanation: It would be 11 because since he eats 7 rolls per minute it would be like 7x1 so 7x11=77 and 11 would be the minutes.
What is the solution to the linear equation? 6k + 10.5 = 3k + 12
○ k = 0.5
○ k= 2
○ k = 7.3
○ k = 9
Answer:
k=0.5
Step-by-step explanation:
Select the choice that has like terms.
1. 4y, 4xy, 4x
2. 6x, 1/2x, -5x
3. 10, 9, -1x
4. 3x, 3x^2, 3x^3
Kimberly currently has a balance of -$20.59 and her checking account. Her bank requires her to maintain a minimum balance of $40 . How much does Kimberly need to deposit and her checking account to reach the minimum balance?
Answer:
-20.59=40
+20.59 +20.59
$60.69
hope this helps
Answer: She would need to deposit $60.59
Step-by-step explanation:
She has: -20.59
She needs: 40
-20.59 + x = 40
+ 20.59 on each side
x = 60.59
The speed of sound in air is a linear function of the air temperature. When the air temperature is 10°C, the speed of sound is 337 m/s. When the air temperature is 30°C, the speed of sound is 349 m/s.
Can you please explain the process of writing this function as a linear equation?
The answer is s-337=0.6(t-10), but I don't know how the textbook got this answer.
9514 1404 393
Answer:
process: substitute the given point values into the 2-point form of the equation for a line
Step-by-step explanation:
There are more than a half-dozen different forms of the equation for a line. They are useful for different purposes. One of them is the "two-point form".
Using x as the independent variable, and y as the dependent variable, the equation can be written as ...
y -y1 = (y2 -y1)/(x2 -x1)/(x -x1)
where (x1, y1) and (x2, y2) are the two points.
__
Here, your two points are ...
(t, s) = (10, 337) and (30, 349)
Using s in place of y, and t in place of x, these two points go into the formula like this:
s -337 = (349 -337)/(30 -10)(t -10)
Simplifying the fraction, this is ...
s -337 = (12/20)(t -10)
And writing it as a decimal, we get ...
s -337 = 0.6(t -10)
_____
Additional comments
Adding y1 to both sides of the above form gives you ...
y = (y2 -y1)/(x2 -x1)/(x -x1) +y1
This is the form I usually prefer to use, because it can lead directly to slope-intercept form. For this problem, the form shown above gets you to the answer you're looking for.
__
This "two-point form" is an expansion of the "point-slope form", which is ...
y - k = m(x -h) . . . . . . . line with slope m through point (h, k)
where the equation for slope is ...
m = (y2 -y1)/(x2 -x1)
and (x1, y1) is used instead of (h, k).
Answer:
The actual linear equation is s= 0.6t + 331 which can be rearranged to make s-337 = 0.6( t-10 ).
Step-by-step explanation:
Any linear equation has the formula y=Mx + c , where x is the independent variable , y is the dependent variable , m is the slope of the line and c is the y-intercept .
here y is replaced by “s” which stands for speed of sound and x is replaced by “t” which stands for temperature.
To find the slope , we divide gain of “s” by gain of “t “
i.e. [tex]m= \frac{349-337}{30-10}= \frac{12}{20} = 3/5[/tex]
So the slope of the equation is 3/5 Or 0.6
lets plug s=337 and t= 10 into the equation s= 0.6t+ c
[tex]337= \frac{3}{5} (10) + c\\337 = 6 + c\\C= 331\\Hence the equation becomes s= 0.6t+ 331 \\Rearranging the equation , s-331 = 0.6t \\ subtracting 6 from both sides, s-331-6 = 0.6t-6\\S-337 = 0.6 ( t- 10 ) , which is given in your book.\\\\[/tex]
The last line is s-337 = 0.6t - 6 = 0.6(t-10 ) , which is given in your book.
Hope it helps
