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slega [8]
3 years ago
12

(2a - 3b + 5c) - (-3a - 7c)

Mathematics
2 answers:
ollegr [7]3 years ago
4 0

Answer:

5a-3b+12c

Step-by-step explanation:

(2a - 3b + 5c) - (-3a - 7c)

Distribute the minus sign

2a -3b +5c +3a +7c

Combine like terms

5a-3b+12c

Sidana [21]3 years ago
3 0

Answer:5a -3b + 12c

Step-by-step explanation:

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

(2a - 3b + 5c) - (-3a - 7c)

<em><u>First step:</u></em>

Distribute negitive sign

(2a - 3b + 5c) + (3a + 7c)

<em><u>Second Step:</u></em>

Remove parenthesis

2a - 3b + 5c + 3a + 7c

<em><u>Third Step:</u></em>

Add like terms

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

5a -3b + 12c

<!> Brainliest is much appreciated! <!>

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Answer:

9 quarters

Step-by-step explanation:

From the question

Jesse has $3.40 in quarters and nickels

Quarters = q = number of quarters

1 quarter = $0.25

nickels = n = number of nickels

1 nickel = $0.05

Hence,

0.25q + 0.05n = $3.40 .......Equation 1

The number of nickels is 5 more than 2 times the number of quarters.

n = 2q + 5

0.25q + 0.05n = $3.40 .......Equation 1

0.25q + 0.05(2q + 5) = 3.40

0.25q + 0.10q + 0.25= 3.40

0.35q = 3.40 - 0.25

0.35q = 3.15

q = 3.15/0.35

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Therefore, Jessie has 9 quarters.

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ser-zykov [4K]

Answer:

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Step-by-step explanation:

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_____________________

32ft^3 and 1372ft^3 →

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343 / 8 = 42 ⅞ = 42.875

s³ → 6s²

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