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bekas [8.4K]
3 years ago
7

7 times as much as the sum of 1/3 and 4/5

Mathematics
1 answer:
Aliun [14]3 years ago
5 0
The sum of 1/3 and 4/5 is 17/15 because I turned the fractions into fractions with common denominators.

7 x 17/15 is 119/15 or 7 14/15. You do whole number x numerator and leave the denominator so you get 119/15. The answer is 7 14/15 :)
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57.2 divided by -10,000<br> Show your work
zhenek [66]

Answer:

- 174.825

Step-by-step explanation:

Change the divisor 57.2 to a whole number by moving the decimal point 1 places to the right. Then move the decimal point in the dividend the same, 1 places to the right.

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3 0
3 years ago
If (4x−7)2=ax2+bx+c for all values of x, what is the value of c(b+a)?
ollegr [7]

Answer:

  -1960

Step-by-step explanation:

The expression on the left expands to ...

  (4x -7)² = (4x)² +2(4x)(-7) +(-7)² = 16x² -56x +49

Matching coefficients, you have ...

  • a = 16
  • b = -56
  • c = 49

Then the expression c(b+a) evaluates to ...

  49(-56+16) = 49(-40) = -1960

8 0
3 years ago
1<br> Sam can run 8 miles in 2 hours. At this rate, how far will he be in 9 hours.
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Answer: I think 28 miles

Step-by-step explanation:

you add 8 miles every 2 hours until you reach 9 hours and since 9 is an old number you add 4 instead.

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