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astra-53 [7]
3 years ago
5

Write a expression that matches the words three times the sum of 8 and 4

Mathematics
1 answer:
Solnce55 [7]3 years ago
5 0

Answer:

3(8+4)

Step-by-step explanation:

You have  to find the sum of eight and for ( which means ad 8 to 4). Then you must multiply that answer by three. The reason you put a parentheses around the 8+for is because of PEMDAS which is the order you must do All expressions. The P stands for parentheses E stands for exponents the M stands for multiplication the D stands for division the A stands for addition and the S stands for subtraction. So without the parentheses around the 8+ for you and multiply 8 times three first and then add four which is not the correct answer.

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Boston has an area of 90 square miles. It has a population density of 6862 people per square mile. What is the population of Bos
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paula bought a ski jacket on sale for $6 less than half its original price. she paid $84 for the jacket. what is the original pr
defon

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8 0
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Jillian is making accessories for the soccer team. She uses 761.78 inches of fabric on headbands for 39 players and 2 coaches. S
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Answer:

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Step-by-step explanation:

Jillian is making accessories for the soccer team.

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Hence:

41 persons = 761.78 inches of fabric

1 person = x

Cross Multiply

41 × x = 761.78 × 1

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For wristbands

She also uses 331.89 inches of fabric on wristbands for just the players.

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Cross Multiply

39 × x = 1 × 331.89 inches

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18.58 inches of fabric was used for head bands and 8.51 inches of fabrics was used for wristbands.

5 0
2 years ago
Given f(x)=x^2+5 and g(x)=2x^3-1 find (f/g)(-3)
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For this case we have the following functions:

f (x) = x ^ 2 + 5\\g (x) = 2x ^ 3-1

By definition of composition of functions we have:

(f / g) (x) = \frac {f (x)} {g (x)}

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So:

(f / g) (- 3) = \frac {14} {- 55} = - 0.25

Answer:

(f / g) (- 3) = \frac {14} {- 55} = - 0.25

7 0
2 years ago
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