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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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natita [175]
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4 0
3 years ago
Write each statement as a decimal to two decimal places. $6.00 to 95 cents = 3 hours to 35 minutes = 42 inches to 2 feet = (Hint
Kruka [31]

Answer/Step-by-step Explanation:

The above given statements can be written as decimals by first writing both quantities in a statement in the same unit.

1. $6.00 to 95 cents:

This is same as $6.00 : 95 cents = \frac{6.00}{95}

Convert $6 .00 to cents to make both quantities be in the same unit.

$1 = 100 cents

$6.00 = 6*100 = 600 cents

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Convert 3 hours to 35 mins

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8 0
3 years ago
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olga2289 [7]
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3 0
3 years ago
Read 2 more answers
Beth has dimes and quarters worth $3.70. if there are 19 coins in all, how many quarters does she have
myrzilka [38]
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x + y = 19
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4 0
3 years ago
Can someone please help me? thank you
balandron [24]

Answer:

c = (ef-ab)/d

Step-by-step explanation:

ab+cd = ef

Subtract ab from each side

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cd = ef-ab

Divide by d

cd /d =(ef-ab)/d

c = (ef-ab)/d

8 0
3 years ago
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