Answer:
9
Step-by-step explanation:
I did not understand so I wanted to see if I could get help
The students at Porterville Elementary sold raffle tickets, each for the same price, for a fundraiser. The equation below shows how much money was raised with t tickets sold. $836 = $11t What is the unit rate in the equation above?
Answer:
76
Step-by-step explanation:
We were given The equation below which shows how much money was raised with t tickets sold. $836 = $11t
Mathematically, unit rate is How much of something per 1 unit of something else
$836 = $11t
Then we can get the value for "t" as
t= 836/11
t= 76
Hence, Unit rate is 76
1.
ALGEBRAICALLY solve each system of equations below. Show all of your work!
a. 7x - y = 98
3x-5y=10
b. x + 3y = 4
x = 6 - 27
Answer:
a. y = 7x-98
y =-3/5x-2
b. y =-1/3x+4/3
x =-21
Step-by-step explanation:
a. 7x - y = 98
98 - 7x
-y = -7x + 98
divide by -
y = 7x - 98
3x - 5y = 10
10 - 3x
-5y = -3x + 10
divide by -5
y = -3/5x - 2
b. x + 3y = 4
4 - x
3y = -1x + 4
divide by 3
y = -1/3x + 4/3
x = 6- 27
x = -21
Hello, I need help with D. I am doing algebraic simplification.
Answer:
10x+88
Step-by-step explanation:
8x+80+2x+8
10x+88
Answer:
88+10x
Step-by-step explanation:
8x+80+2x+8= 88+10x
Hope this helps :D
P.s~ Could you give meh brainliest pls? TYSM if u do its ok if u don't :3
Question 2 50 pts A custodian plans to repaint some classroom bookcases. She has 5 1 4 gallons of paint. All of the bookcases are the same size and each requires 3 4 gallon of paint. How many bookcases will the custodian be able to repaint with that amount of paint?
Answer:
sorry I wish I could help but I'm stupid
30 POINTS!!! Which choice is equivalent to the fraction below when x is greater than or equal to 3?
Answer: C.
[tex]\frac{9}{\sqrt{x} -\sqrt{x-3} }=\frac{9(\sqrt{x} +\sqrt{x-3} )}{x-(x-3)}=\frac{9(\sqrt{x} +\sqrt{x-3} )}{3}=3(\sqrt{x} +\sqrt{x-3})[/tex]
Step-by-step explanation:
The given fraction is equivalent to [tex]3(\sqrt{x}+\sqrt{x-3})[/tex]. Then the correct answer is option C.
What is rationalization?The elimination of radicals from an algebraic fraction's denominator is known as root rationalization in elementary algebra.
Rationalizing the given expression to get the solution.
[tex]\dfrac{9}{\sqrt{x}-\sqrt{x-3}}=\dfrac{9}{\sqrt{x}-\sqrt{x-3}}\times \dfrac{\sqrt{x}+\sqrt{x-3}}{\sqrt{x}+\sqrt{x-3}}[/tex]
[tex]\dfrac{9}{\sqrt{x}-\sqrt{x-3}}=\dfrac{9(\sqrt{x}-\sqrt{x-3})}{(\sqrt{x})^2-(\sqrt{x-3})^2}[/tex]
[tex]\dfrac{9}{\sqrt{x}-\sqrt{x-3}}=\dfrac{9(\sqrt{x}-\sqrt{x-3})}{({x})-({x-3})}[/tex]
[tex]\dfrac{9}{\sqrt{x}-\sqrt{x-3}}=\dfrac{9(\sqrt{x}-\sqrt{x-3})}{3}={3(\sqrt{x}-\sqrt{x-3}[/tex]
Hence, the correct answer is option C.
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Find the measure of the missing angle.
34°
if 5=x, solve the following equation: 2 x
Answer:
10
Step-by-step explanation:
2x
2(5)
= 10
N is the set of integers that are greater than - 3 and less than 2.
f(x) = -7x2 + 9x - 15 and g(x) = -12x2 – 15x + 7
g(x) -f(x)
please explain i dont understand.
Answer:
[tex] {5x}^{2} + 6x = - 8[/tex]
Step-by-step explanation:
This question is asking you to insert two equations, f(x) and g(x), into the equation g(x) - f(x). This will lead to the equation below.
[tex] { - 12x}^{2} - 15x + 7 - ({ - 7)x}^{2} + 9x - 15[/tex]
Now we can solve for the equation.
[tex] { - 5x}^{2} - 6x - 8 = 0 \\ {5x}^{2} + 6x = - 8[/tex]
What is the constant of variation in the equation y=3/4x?
Answer:the answer is 34
Step-by-step explanation:
Answer:
34
Step-by-step explanation:
Combine 34 and x . Since the equation can be written in the form y=kx y = k x , y varies directly with x and k . The constant of variation, k , is 34
(04.07A) A line passes through (2, 8) and (4, 12). Which equation best represents the line? y = 1 over 2x + 6 y = 2x + 7 y = 2x + 4 y = 1 over 2x + 10
Answer:
1 over 2x+6y=2x+7y=
Step-by-step explanation:
Answer:
1 over 2x+6y=2x+7y=
Step-by-step explanation:
1 over 2x+6y=2x+7y=
guys pls helpppppp me I need help
Answer:what grade is this?
Step-by-step explanation:
Given f(x)=x^3+kx-2, an x−1 is a factor of f(x), then what is the value of k?
Answer:
The value of k is 1
Step-by-step explanation:
If x-1 is a factor, if we equate x - 1 to 0 and substitute the value of x
Then, we should have 0 as the f(x) value
so;
x-1= 0
x = 1
Substitute this
0 = 1^3 + k(1) - 2
0 = 1 + k-2
0 = k-1
k = 1
Calculate the average rate of change of f (x) = 3x2 + 2x + 5 on the interval (0, 2).
A. -1
B. 8
C. 38
D. 128
The average rate of change of a continuous function f(x) in an interval (a, b) is
(f(b) - f(a)) / (b - a)
So for
f(x) = 3x ² + 2x + 5
on the interval (0, 2), we have
• f (2) = 3 • 2² + 2 • 2 + 5 = 21
• f (0) = = 3 • 0² + 2 • 0 + 5 = 5
so that the average rate of change is
(f (2) - f (0)) / (2 - 0) = (21 - 5) / 2 = 16 / 2 = 8
and the answer is B.
I need help with 3,b
-19=-17+k/5 please show work
Answer:
Step-by-step explanation:
-19=-17+k/5
add 17 to both sides
-2=k/5
multiply by 5 on both sides to get k alone
k=-10
Answer:
okay so if - 19 is equal to 17 + k divided by 5, first you figure out what you have to do to 17 to get -19. in this case, all you do is subtract 17 from 17 to get 0, then subtract 19 from 0 to get -19. then you add 17 and 19 to see how much you subtracted from 17 to get -19, so you subtracted 36 from 17. now you add the - sign to the 36 so that means instead of subtracting a positive number you're adding a negative number (it has the same effect) so you now need to know what, when divided by 5, equals -36. so just multiply -36 by five to get -180. so k = 170
Step-by-step explanation:
-19 = 17 + -180/5
-180/5 is -36
-19 = 17 + -36
17 + -36 = -19
-19 = -19
(sorry this is a lot of info but its harder to explain if i cant say a lot)
the equation of th a line given by y = mx + b is also called
Answer:
slope intercept form
Step-by-step explanation:
Slope intercept form
SOMEONE HELP ME PLEASE EASY
Answer: 2,2 is not a solution
Step-by-step explanation:
WILL GIVE BRAINLIEST PLEASE ANSWER
Answer:
7 Units
Step-by-step explanation:
JJ decides to leave a tip that is 15% of the original price for his meal. How much should he leave as tip for the $5.50 cheeseburger and $2.50 milkshake? Express your answer to the hundredths place?
Answer: $9.20
Step-by-step explanation: To get the answer, you add both the cost and multiply it by .15. Then you add the product to the number you got adding the cost of the food.
Answer:
$1.20
Step-by-step explanation:
He has to leave 100% of the cost which is $5.50 + 2.50 or $8.00.
He wants to leave 115% of the $8 he has to leave.
So you set it up like
x/8 = 115/100
Then you solve for x
8(115) = 920
920/100 =9.2
So he will leave $9.20.
It then asks for just how much the tip is that he will leave so
9.2 - 8 = 1.2
So the tip is $1.20.
Nicole, Justin, and Shen have a total of $85 in their wallets. Shen has 2 times what Justin has. Nicole has $9 more than Justin. How much does each have?
Answer:Nicole has $94, shen has $170 and justuin has $85
Step-by-step explanation:
85+9=94 85 times 2= 170
Answer:
Step-by-step explanation:
Justin has 19
Nicole has 28
Shen has 38
Given a rectangle with width equal to (2x+1) units, length equal to (2x−1) units, and area equal to 35 square units, find the width of the rectangle.
Answer:
The width of the rectangle is 7 units
Step-by-step explanation:
Here, we want to find the width of the rectangle
Mathematically, the area of the triangle is length * width
(2x + 1)(2x-1) = 35
4x^2 - 1 = 35
4x^2 = 36
x^2 = 9
x = 3
Substituting 3 in 2x + 1
we have 2(3) + 1 = 6 + 1 = 7 units
6 of 6
© Caroline, Colin & Sarah share some money.
Caroline gets of the money
Colin and Sarah share the rest in the ratio 3:1.
What proportion does Sarah get?
7
8
9
q
W
e
r
t
у
u
í
0
4
5
6
a
S
d
f
g
h
Answer:
1
Step-by-step explanation:
The proportion of the money that Sarah gets is 2/3 of the total amount
How to determine Sarah's proportion?From the complete question, the fraction of the money is:
Caroline = 1/9
The remaining amount is calculated using:
Remaining = 1 - 1/9
Evaluate
Remaining = 8/9
Colin and Sarah's share is:
Colin : Sarah = 1 : 3
This means that Sarah's share is:
Sarah = 3/(3 + 1) * 8/9
This gives
Sarah = 3/4 * 8/9
Evaluate
Sarah = 2/3
Hence, the proportion gotten by Sarah is 2/3
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A-alternate interior angles
B-same side interior angles
C-corresponding angles
D-alternate exterior angles
Answer:
alternate interior angles
Step-by-step explanation:
They are on opposite sides of the line and they are equal to each other
Mrs. Driggers went to Target to purchase the new movie Frozen for her girls. The original price was $20, but
it is on sale for 10% off.
9. How much will Mrs. Driggers save by purchasing the movie at Target?
a. $0.20
b. $0.02
C. $2.00
10. How much will the movie cost Mrs. Driggers (before tax)?
a. $19.80
b. $18.00
C. $19.98
11. If she purchases the movie in Summerville, Mrs. Driggers will pay 8.5% sales tax. How much sales tax
will she have to pay on the movie?
a. $1.68
b. $15.30
C. $1.53
12. What is the total cost for the movie from Target in Summerville (including tax)?
a. $19.53
b. $33.30
10cn
Answer:
9. C. $2.00
10. B. $18.00
11. C. $1.53
12. A. $19.53
Step-by-step explanation:
10%, or 1/10th of 20 dollars is 2 dollars.
The movie, therefore, will cost 2 dollars less, or 18 dollars before tax.
To find tax, multiply the total (after price reduction) by the percentage tax (as a decimal, 0.085%), which gives you 1.53.
Add the tax and the initial cost together to get the total cost.
How did billy go from five to ten apples
Answer:
5 apple magically appeared in his hands CLONED APPEARED BOUGHT FLEW INTO HIS HANDS.
Step-by-step explanation:
Need help with this please
Answer:
55 degrees.
Step-by-step explanation:
ok so first off we know altogether the angles of a triangle have to equal 180 degrees total we have one thats 80 so the other two together must be 100 given that information we can make the equation 7x+6+3+6x=100 we simplify to get 13x+9=100 after moving it around you get 13x=91 solve the equation by dividing both sides by 13 to get x=7, but we are not done we have to solve for angle A by inputting the X so we get angle A=55 degrees
====================================================
Work Shown:
A+B+C = 180 ..... angles of a triangle add to 180
(7x+6) + (80) + (3+6x) = 180
13x + 89 = 180
13x = 180-89 .... subtract 89 from both sides
13x = 91
x = 91/13 .... divide both sides by 13
x = 7
Use this x value to find the missing angle measures.
angle A = 7x+6 = 7*7+6 = 55
angle C = 3+6x = 3+6*7 = 45
Note that,
A+B+C = 55+80+45 = 180
which helps confirm our answer.
What is the slope of the line that passes through the given points?
(2,9) and (1,6)
Answer:
M = 3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
it rose 3 and ran 1
3/1=3
convert 0.16 liters to milliliters
0.16 liters in terms of mililiters is equal to 160 ml
What is the unitary method?The unitary method is a method in which you find the value of a unit and then the value of a required number of units.
Given here: 0.16 liters
Now we know 1 liter= 1000 ml
Thus 0.16 liter would be equal to 0.16×1000=160 ml
Hence, 0.16 liters in terms of mililiters is equal to 160 ml
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