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Jlenok [28]
3 years ago
15

Please help me i hate doing math work

Mathematics
1 answer:
QveST [7]3 years ago
4 0
1. 615.752160 m2
2. 452.389342 mm2
3. 1,256.637061 yd2
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Sara drives 171 miles on 7.6 gallons of gas. She uses this information to calculate how many miles per gallon she can drive. Usi
vfiekz [6]

171 / 7.6 = 22.5 miles per gallon

22.5 x 12.5 = 281.25 miles she can drive

7 0
2 years ago
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The equations in this sytem were added to solve for x. What is the value of x?
son4ous [18]

<em><u>Question:</u></em>

The equations in this system were added to solve for x. What is the value of x? -2x+y=8 5x-y=-5 3x=3

Options:

x = negative 3

x = negative 1

x = 1

x = 3

<em><u>Answer:</u></em>

The value of x is 1

<em><u>Solution:</u></em>

<em><u>Given system of equations are:</u></em>

-2x + y = 8 ------- eqn 1

5x - y = -5 ------- eqn 2

The above equations are added to solve for "x"

Add eqn 1 and eqn 2

-2x + y + 5x - y = 8 - 5

Combine the like terms

-2x + 5x + y - y = 3

Add the like terms

3x + 0 = 3

3x = 3

Divide both sides of equation by 3

x = 1

Thus the value of x is 1

8 0
2 years ago
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Did I get this first question right?
vivado [14]

Answer:

no

Step-by-step explanation:

the correct answer is 56.55 inches

3 0
3 years ago
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Solve by substitution 9x+y=21, -x-3=y
VashaNatasha [74]

Answer:

point form: (3,-6)

equation form: x=3, y=-6

Step-by-step explanation:

4 0
2 years ago
two years local internet service costs $685, including the installation fee of $85. what is the monthly fee?
kari74 [83]
685-85=600 would be 2 years of service. 600/2=300 would be 1 year. 300/12=25 would be 1 month. The monthly fee is $25.
8 0
2 years ago
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