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3 years ago

7x-3=-3+7x show your work

1 answer:

8 0

So what you need to do is to put X alone so what you do is +3 on both sides so only 7x=7x is left. then do the opposite and divide 7 with 7 you get 1x thats your answer

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Austin is 8 years younger than twice Sarah’s age. Austin is 32 years old. How old is Sarah?

ELEN [110]

Answer:

Sara is twenty because 32+8=40 and 40/2=20 Glad to be of your help!

Step-by-step explanation:

3 0

3 years ago

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I NEED HELP WITH THIS OTHER QUESTION 1/2 + 2 3/4=?

vichka [17]

Answer:

3.25

Step-by-step explanation:

5 0

4 years ago

Solve equation using substitution method 4(x-1)-3x=2

NikAS [45]

Answer:

x = 6

Step-by-step explanation:

Step 1: Write equation

4(x - 1) - 3x = 2

Step 2: Solve for x

Distribute 4: 4x - 4 - 3x = 2
Combine like terms: x - 4 = 2
Add 4 to both sides: x = 6

Step 3: Check

Plug in x to verify it's a solution.

4(6 - 1) - 3(6) = 2

4(5) - 18 = 2

20 - 18 = 2

2 = 2

8 0

3 years ago

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One cylinder has a volume that is 8 Centimeters cubed less than StartFraction 7 over 8 EndFraction of the volume of a second cyl

mojhsa [17]

The correct equation is:

$216 = \frac{7}{8} \times x - 8$

The volume of second cylinder is 256 centimeter cubed

Solution:

Given that,

One cylinder has a volume that is 8cm less than 7/8 of the volume of a second cylinder

The first cylinder’s volume is 216 centimeter cubed

From given,

Let "x" be the volume of second cylinder

Therefore,

Volume of first cylinder = 7/8 of the volume of a second cylinder - 8

$216 = \frac{7}{8} \times x - 8$

$216 = \frac{7x}{8}-8\\\\216 = \frac{7x-64}{8}\\\\7x - 64 = 8 \times 216\\\\7x - 64 = 1728\\\\7x = 1728 + 64\\\\7x = 1792\\\\Divide\ both\ sides\ by\ 7\\\\x = 256$

Thus the volume of second cylinder is 256 centimeter cubed

6 0

3 years ago

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Greg just purchased a house for $450,000. His annual homeowners insurance premium is $0.42 per $100 of value. If his annual prem

sergij07 [2.7K]

Answer:

Grey have to pay $157.5 on monthly basis to keep his home insured.

Step-by-step explanation:

Grey purchased a house = $450,000

Annual Insurance premium = $0.42 per $100 of value.

We need to calculate monthly premium to pay such that home insured.

Now we calculate number of 100 in $450,000

Number of 100 = 4500

The premium value of 1 hundred = $0.42

Total value of 4500 hundred = 0.42 x 4500 = $1,890

Grey total premium in 1 year = $1,890

Now we find monthly premium

We know in 1 year total number of month is 12

In 12 month premium = $1,890

In 1 month premium = 1890÷12 = 157.5

Monthly premium for home insured = $157.5

Thus, Grey have to pay $157.5 on monthly basis to keep his home insured.

7 0

4 years ago

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