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iogann1982 [59]
3 years ago
7

(18 - ab) + 4b (if a = -2 and b = -5)​

Mathematics
2 answers:
ivanzaharov [21]3 years ago
5 0

Answer:

-12

Step-by-step explanation:

if a=-2 and b=-5

(18-(-2×-5))+4(-5)

(18-(10))-20

8-20

-12

just gotta plug in the given into the equation

LuckyWell [14K]3 years ago
5 0

Answer:

person above me is correct

Step-by-step explanation

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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

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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

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

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Therefore, Jessie has 9 quarters.

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3 years ago
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Answer:

See below.

Step-by-step explanation:

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Step-by-step explanation:

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