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DIA [1.3K]
3 years ago
13

8. Simplify and solve this equation: 4m + 9 + 5m – 12 = 42. A. m = 5 B. m = –5 C. m = 4 D. m = -4

Mathematics
2 answers:
Luden [163]3 years ago
6 0
4m+9+5m-12=42
Combine 9 and -12 and you get -3 so
4m+5m-3=42
And then combine 4m and 5m and you get 9m so
9m-3=42
And then add three on both sides (canceling out the -3) leaving you with
9m=45
And then divide 45 by 9 and you get 5 so
m=5.
The answer is A. M=5
STatiana [176]3 years ago
4 0
4m+9+5m-12=42 9m-3=42 Divide bothsides by 9. 9m/9 -3/9=-0.3=-4 m=-4
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ElenaW [278]

Answer:

x = 24

Step-by-step explanation:

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Natali [406]
Please don't ask 2 questions in 1 question



remember that percent is parts out of 100 so x%=x/100
basically just remove the percent sign and move the decimal place 2 places to the left  to convert to fraction

the first one
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it is better to top on the without-tax value since tax comes from you so
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total cost of a spa treatment of 42 with 6% tax and 20% tip
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scenarios:
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