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elena55 [62]
3 years ago
10

Gabriel has $0.80 worth of pennies and

Mathematics
1 answer:
Juliette [100K]3 years ago
4 0

Answer:

nickels=13 and pennies=15

Step-by-step explanation:

0.05n+0.01p=0.80

-0.01(n+p=28)

0.05n+0.01p=0.80

-0.01n-0.01p= -0.28

0.04n=0.52

n=13

p=15

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Write 2 equivalent ratios for each ratio given:<br> 2/7<br> 3:3 1/2<br><br> 2.5 to 6
goldenfox [79]

Answer:

2/7 = 4/14

3:3 = 6:6

1/2 = 2/4

2.5:6 = 5:12

Step-by-step explanation:

For the first one, we can multiply the numerator and denominator of the fraction by 2 to get an equivalent fraction which is 4/14

For the second one we can multiply each side by 2 to get the ratio of 6:6

For the third one we can multiply the numerator and denominator by 2 to get 2/4

For the last one we can multiply each side by 2 to get 5:12

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10 Y plus 9Y minus 6Y plus 6Y simplified
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=> 10y + 9y - 6y + 6y
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Step-by-step explanation:

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HELP<br>2 (3x-7)=-4x-6+9x-8
Leni [432]
2 (3x - 7) = -4x - 6 + 9x - 8   Simplify 2 (3x - 7)
    6x - 14 = -4x - 6 +9x - 8    Combine like terms (-4x and 9x) (-6 and -8)
    6x - 14 = 5x - 14                 Subtract 5x from both sides
      x - 14 = -14                       Add 14 to both sides
            x = 0

Check your answer.

  2 (3x - 7) = -4x - 6 + 9x - 8        Substitute x for 0
2 (3(0) - 7) = -4(0) - 6 + 9(0) - 8   Multiply 3(0)
    2 (0 - 7) = -4(0) - 6 + 9(0) - 8   Multiply -4(0)
    2 (0 - 7) = 0 - 6 + 9(0) - 8        Multiply 9(0)
    2 (0 - 7) = 0 - 6 + 0 - 8            Subtract (0 - 7)
         2(-7) = 0 - 6 + 0 - 8             Multiply 2(-7)
            -14 = 0 - 6 + 0 - 8             Get rid of the unneccesary 0s
            -14 = -6 - 8                        Subtract (-6 - 8)
            -14 = -14

So, x = 0 .
5 0
2 years ago
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