Answer:
x = 9
Step-by-step explanation:
if 3 times a number added to 2 is divided by the number plus 9 the result is 5 halves. find the number
Answer:
2/7
Step-by-step explanation:
What is the first step to solve for n
in the following equation?
3n - 7 = 30
Answer:
n = 37/3
n = 12 1/3
Step-by-step explanation:
Hi there !
3n - 7 = 30
3n = 30 + 7
3n = 37
n = 37/3
n = 12 1/3
Good luck !
The diameter of a pinhead is 0.000004 mm. What is this number,
without units, in scientific notation?
Answer:
4*10^-6
Step-by-step explanation:
Write 1/4x-3/4y=-1 in standard form
work out
need asap
please
X + 5 = 1
—
4. Step by step please help!!!
Answer: x=-8
Step-by-step explanation:
X+5=1-4
X+5=-3
Now subtract 5 from both sides
X=-8
Chris wants to order DVDS over the internet. Each DVD costs $ 15.99 and shipping for the entire order is $ 9.99. How much will Chris spend (s) if he buys x DVDS?
Answer:
There are 3 DVD s that can be bought with under $100.
Step-by-step explanation:
Since we have given that
Cost of DVD = $15.99
Cost of Shipping = $ 9.99
Total cost per DVD would be
$15.99 + $9.99 = $ 25.98
Amount he has to spend no more than $ 100.
So, number of DVDs would be
100 ÷ 25.98 = 3.84
Hence, there are 3 DVD s that can be bought with under $100.
1, 2, 3, 5, 8, ____, ____, ____ Give the next three numbers in the pattern.
Answer: 10, 12, 14 are the next numbers
Explanation:
What is the equation in slope-intercept form of the line that passes through the points ( -4, 47) and ( 2 , -16)?
A) y= -
21
2
x +
979
21
B) y= -
2
21
x +
979
21
C) y= -
21
2
x + 5
D) y= -
2
21
x +5
Answer:c
Step-by-step explanation:
There are 49 female performers in a dance recital. The ratio of men to women is 5:7. How many men are in the dance recital?
Answer:
35 Men were in the dance recital
Step-by-step explanation:
The ratio from MEN to WOMEN is 5:7
49 female performers is 7
49/7= 7 performers
to find how many men, you would do 7*5
7*5= 35
35 Men were in the dance recital
Hope this helps and made sense!
which expression forms an equation with the given expression? 8•7-4=
Answer:
the answer to this equation is 52
Step-by-step explanation:
Which expression is equivalent to
Answer:
a
Step-by-step explanation:
Line CD passes through points (0, 2) and (4, 6). Which equation represents line CD?
OOOO
O y=2x-2
y = 2x + 2
y = x + 2
y = x-2
Answer:
y = x + 2
Step-by-step explanation:
Point (0, 2) :
y = x + 2
2 = 0 + 2
2 = 2
Point (4, 6) :
y = x + 2
6 = 4 + 2
6 = 6
Two stores sell CDs in packages, as shown in the table below.
CD Prices at Store A
Number of CDs in Package
1
12
20
45
Cost
$0.70
$8.40
?
$31.50
CD Prices at Store B
Number of CDs in Package
1
20
30
65
Cost
$0.60
?
$18.00
$39.00
If the rate at each store is constant, which statement correctly compares the cost of a package containing 20 CDs?
The cost at Store A is $2.00 greater than at Store B.
The cost at Store B is $2.00 greater than at Store A.
The cost at Store A is $1.00 greater than at Store B.
The cost at Store B is $1.00 greater than at Store A.
Answer:
The answer is B
Step-by-step explanation:
the cost at store b is 2.00 greater than store a
Answer: b is the answer
Step-by-step explanation:
Please help me it would mean a lot
Problem 10
Answer: 80 degreesWork Shown: 80-0 = 80
You subtract the values on the protractor where the two angle arms line up.
============================================
Problem 11
Answer: 45 degreesWork Shown: 45-0 = 45
Same idea as problem 10
============================================
Problem 12
Answer: 83 degreesWork Shown: 128-45 = 83
Same idea as the others. The arm TS isn't fully on 130 degrees, and it's a bit short of it. It looks to be about 128 degrees or so.
============================================
Problem 13
Answer: 35 degreesExplanation: Luis forgot to subtract the value of each arm of the angle. So he should have done 80-45 = 35. The answer would be 80 degrees if arm TQ was at 0 degrees (so 80-0 = 80), but instead TQ is at 45 degrees.
Does anyone know this?
Answer:
I think the answer is A but I am not for sure
Step-by-step explanation:
Kayla has a puppy that weighs 5 pounds. Kayla's brother Manuel has a puppy that is 65 times the weight of Kayla's puppy. Which statement about the weight of Manuel's puppy is true?
4:8 and 32:64 are equal ratios. True or False
Answer:
True
Step-by-step explanation:
this is because when reduced to their most simple terms they are the same so:
4:8 divide both sides by 4 and get: 1:2
32:64 divide both sides by 32 and get: 1:2 as well
2.1 ÷ 1.488 rounded to the nearest tenth, I will Give you 20 Points
Please help! ASAP I just need number 1
Answer:
no you can not make 1 into a triangle
Step-by-step explanation:
16 cm, 30 cm, 45 cm
if you want to draw a triangle with these sides you would add
16 + 30 = 46
the longest side would have to be greater then the other 2 sides
Akiko wants to fence in her [tex]12[/tex] ft by [tex]10[/tex] ft vegetable garden. There will be a path [tex]x[/tex] ft wide between the garden and the fence. The area to be enclosed by the fence will be [tex]360[/tex] sq ft. Write a quadratic function that can be used to determine the value of [tex]x[/tex].
Answer:
see below
Step-by-step explanation:
The length is 12 + 2x and the width is 10 + 2x
A = l*w
360 = ( 12+2x) ( 10+2x)
FOIL
360 = 120 + 24x+20x + 4x^2
Combine like terms
360 = 4x^2 +44x+120
Subtract 360 from each side
0 = 4x^2 +44x +120-360
0 = 4x^2+ 44x -240
For fun, lets solve
0 = 4( x^2 + 11x - 60)
0 = 4( x+15) ( x-4)
Using the zero product property
x= -15 x=4
Since we cannot have negative length
x=4 ft
Answer:
[tex]x^2+11x-60=0[/tex]
Step-by-step explanation:
Refer to the drawing.
We know that the area enclosed by the fence is 360 square feet. Remember that the area for a rectangle is given by the following formula:
[tex]A=bh[/tex]
So, let's substitute 360 for A, (12+2x) for b, and (10+2x) for h. This yields:
[tex]360=(12+2x)(10+2x)[/tex]
We can simplify this. On the right, factor out a 2 from the first term and a 2 from the second. This yields:
[tex]360=2(6+x)\cdot2(5+x)[/tex]
Multiply:
[tex]360=4(x+6)(x+5)[/tex]
Divide both sides by 4:
[tex]90=(x+6)(x+5)[/tex]
Multiply on the right:
[tex]90=x^2+6x+5x+30[/tex]
Add on the right:
[tex]90=x^2+11x+30[/tex]
Subtract 90 from both sides. So, our equation is:
[tex]x^2+11x-60=0[/tex]
And we're done!
Solve the system x+2z=30 y+z=12 z=1
Answer:
x=28 y=11 z=1
Step-by-step explanation:
plug in 1 for z in x+2z=30 to get x+2(1)=30. Then you should get x+2=30 which is x=28.
Then, plug 1 in for the second equation of y+z=12 so you get y+1=12. Then you should get y=11.
why do terms have to be like terms?
Answer:
Like terms are terms that contain the same variables raised to the same power. Only the numerical coefficients are different. In an expression, only like terms can be combined. We combine like terms to shorten and simplify algebraic expressions, so we can work with them more easily.
216 divided by 31
Please give me the answer AND the remainder. i DO NOT want the answer in deciamls
And show your work
Answer:
6 r 30
Step-by-step explanation:
Step 1:
Start by setting it up with the divisor 31 on the left side and the dividend 216 on the right side like this:
3 1 ⟌ 2 1 6
Step 2:
The divisor (31) goes into the first digit of the dividend (2), 0 time(s). Therefore, put 0 on top:
0
3 1 ⟌ 2 1 6
Step 3:
Multiply the divisor by the result in the previous step (31 x 0 = 0) and write that answer below the dividend.
0
3 1 ⟌ 2 1 6
0
Step 4:
Subtract the result in the previous step from the first digit of the dividend (2 - 0 = 2) and write the answer below.
0
3 1 ⟌ 2 1 6
- 0
2
Step 5:
Move down the 2nd digit of the dividend (1) like this:
0
3 1 ⟌ 2 1 6
- 0
2 1
Step 6:
The divisor (31) goes into the bottom number (21), 0 time(s). Therefore, put 0 on top:
0 0
3 1 ⟌ 2 1 6
- 0
2 1
Step 7:
Multiply the divisor by the result in the previous step (31 x 0 = 0) and write that answer at the bottom:
0 0
3 1 ⟌ 2 1 6
- 0
2 1
0
Step 8:
Subtract the result in the previous step from the number written above it. (21 - 0 = 21) and write the answer at the bottom.
0 0
3 1 ⟌ 2 1 6
- 0
2 1
- 0
2 1
Step 9:
Move down the last digit of the dividend (6) like this:
0 0
3 1 ⟌ 2 1 6
- 0
2 1
- 0
2 1 6
Step 10:
The divisor (31) goes into the bottom number (216), 6 time(s). Therefore put 6 on top:
0 0 6
3 1 ⟌ 2 1 6
- 0
2 1
- 0
2 1 6
Step 11:
Multiply the divisor by the result in the previous step (31 x 6 = 186) and write the answer at the bottom:
0 0 6
3 1 ⟌ 2 1 6
- 0
2 1
- 0
2 1 6
1 8 6
Step 12:
Subtract the result in the previous step from the number written above it. (216 - 186 = 30) and write the answer at the bottom.
0 0 6
3 1 ⟌ 2 1 6
- 0
2 1
- 0
2 1 6
- 1 8 6
3 0
You are done, because there are no more digits to move down from the dividend.
The answer is the top number and the remainder is the bottom number.
Therefore, the answer to 216 divided by 31 calculated using Long Division is:
6
30 Remainder
34 23.32
What is the simplified expression for
2.
?
24.3-13
32
32.
22
032
열
2
024
력
3
Step-by-step explanation:
the answer is 3/2
always remember when multiplying numbers of the same base the exponents will always be added and when dividing numbers of the same base the exponents will be minused.
(5x+6) over 2 = 3 (4x+12)
x= -66/19
Multiply 2 on both sides:
2*(5x+6)/2=3(4x+12)*2
Simplify:
5x+6=24x+72
Subtract 6 from both sides:
5x+6-6=24x+72-6
Simplify:
5x=24x+66
Subtract 24x from both sides:
5x-24x=24x+66-24x
Simplify:
-19x=66
Divide both sides by -19
-19x/-19=66/-19
Simplify:
x= -66/19
Diana usually drives at average rate of 30 mph.
If Diana drives with the average rate x mph, how long would it take her to get to Tony's house?
Answer:
12/x hours
Step-by-step explanation:
d=12
s*t=d
t=d/s
t=12/s
Hope this helps pls if it help u mark me BRAINLIST pls thank u.
Answer:
12
Step-by-step explanation:
no
Laurie earns $7.50 per hour at the fruit stand plus an extra $2.00 per hour on Sundays. One week in August, she worked on Sunday, Monday, and Wednesday. She worked the same number of hours on Monday and on Wednesday. On Sunday she worked 4 hours. If she earned a total of $83.00 for the week, how many hours did Laurie work on Monday? Enter and solve an equation.
Answer:
Hi there!
Your answer is:
She worked for 3 Hours on Monday.
Step-by-step explanation:
7.5$ per hour
7.5+2$ per hour on Sundays.
In August:
Sunday, Monday, Wednesday.
# of hours for Monday =Wednesday
Sunday= 4 hrs (which would mean 9.5$ * 4)
Monday and Wednesday will be modeled by X
X + 38$ (earned sunday)= 83$
-38
X= 45$
Since X represents BOTH monday and wednesday, divide by 2
45/2 = 22.5$
CHECK YOUR WORK
22.5$ (monday) + 22.5$ (wednesday) + 38$ (sunday)= 83???
45=38=83???
83=83 YES
Now, to determine how many hours that is, we divide the earned wages by the wage per hour.
22.5 / 7.5 = 3 HOURS
CHECK YOUR WORK
3 hours * 7.5 per hour = 22.5???
22.5 = 22.5 YES
Hope this helps
If she worked the same number of hours on Monday and on Wednesday. On Sunday she worked 4 hours. If she earned a total of $83.00 for the week, the number of hours that Laurie work on Monday will be: 3 hours
$7.5= 1 hour Other days
$9.50 or ($7.50+$2.00) = 1 hour Sunday
Let Sunday= 4×$9.50 =$38
Let Monday= x × $7.5=$7.5x
Let Wednesday= x × $7.5=$7.5x
Let Total earning=$83
Let x represent the number of hours
Hence:
First step is to formulate
7.5x+7.5x+38=83
Second step is to calculate how many hours did Laurie work on Monday
x =83-38÷ 7.5+7.5
x=83-38÷15
x=45÷15
x=3 hours
Inconclusion If she worked the same number of hours on Monday and on Wednesday. On Sunday she worked 4 hours. If she earned a total of $83.00 for the week, the number of hours that Laurie work on Monday will be: 3 hours
Learn more here:
https://brainly.com/question/12506050
Which two expressions are
equivalent to 18p-36?
(Pick two choices)
3(9p-12)
9(2p-4p)
2(9p-18)
18(p-2)
Answer:
9(2p-18) and 2(9p-18)
Step-by-step explanation:
The equivalent expression to the expression 18p - 36 are,
9(2p - 4p) and 2(9p - 18).
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, An expression 18p - 36.
We know the distributive property states a(b + c) = ab + ac.
Now, The factors of 18 are, 1, 2, 3, 6, 9, 18.
Therefore,
18p - 36 can be written as,
9(2p - 4p) and 2(9p - 18).
learn more about numerical expressions here :
https://brainly.com/question/29199574
#SPJ2
Find the quotient of 2 ÷ 3 8 .
Juan read 300 pages in 5 days. Which reading rate is equivalent?
A.) 150 pages in 3 days
B. )120 pages in 2 days
C.) 105 pages in 1 day
D.) 100 pages in 3 days
Answer:
A: 150 pages in 3 days
Step-by-step explanation:
