What is three more than the product of a number and 7 equals 8 . use the variable x for the unknown number?

Mathematics

1 answer:

Anastaziya [24]2 years ago

7 0

(7x) + 3 = 8
subtract both sides by 3.

7x = 5
divide both sides by 7 to isolate the variable, x.

x = 5/7

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Can someone answer part A and part B?

Marat540 [252]

Answer:

Part a: 3

Part b: B

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HELP THIS IS WORTH 40 POINTS Lucy has a jewelry business. To make a certain necklace, she spends $3.38 on materials and $5.57 on

ankoles [38]

A.) If Lucy sells 1 necklace, her sales would equal to $15.99. Then her profit would be:

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3 years ago

Read 2 more answers

What is 1 and 1/6 minus 7/12 ?

Damm [24]

$1 \frac{1}{6} - \frac{7}{12} \\ 
 \\ 1 \frac{1}{6}= \frac{1x6+1}{6}= \frac{7}{6} \\ 
 \\ \frac{7x2}{6x2}= \frac{14}{12} \\ 
 \\ \frac{7x1}{12x1}= \frac{7}{12} \\ 
 \\ \frac{14}{12} - \frac{7}{12}= \frac{7}{12} \\ 
 \\ Solution: \frac{7}{12} 
$