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AleksandrR [38]
3 years ago
10

Let x = 6. Evaluate 5x + 18x.

Mathematics
1 answer:
zimovet [89]3 years ago
3 0

Use the substitution method

5x+18x

5(6)+18(6)

30+18(6)

Mutiply first then add

30+108

= 138

Answer: 138

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June has $1.95 in dimes and nickels. She has a total of 28 coins. how many of each type of coin does she have?
Dovator [93]

Answer:

11 dimes, 17 nickels

Step-by-step explanation:

d + n = 28, put one variable by itself on a side, d = 28 - n

.10d + .05n = 1.95

Sub the first equation into the second

.10(28 - n) + .05n = 1.95

2.8 - .10n + .05n = 1.95

2.8 - .05n = 1.95

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n = 17 nickels

d + 17 = 28

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2 years ago
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kipiarov [429]
The answer is A) -14 + 4i. God bless!
7 0
3 years ago
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Please help me with this question!!
KonstantinChe [14]

Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

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Arisa [49]

Answer:

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