3 years ago

7 times a number is 84 , what is 4 times the number ? A ) 16 B) 28 C) 48 D) 56

Mathematics

2 answers:

vodka [1.7K]3 years ago

8 0

The answer is 48 as 84 divided by 7 is 12 times 4 is 48

liq [111]3 years ago

3 0

Answer:

C. 48

Step-by-step explanation:

first you solve 84 divided by 7 and your answer is 12 then you do 12x4 which is 48

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How to add these mixed numbers

krek1111 [17]

Make them into improper fractions
(5*5)+3
(2*3)+2

Final fractions
28/5+8/3
Find a common denominator
Multiply 28/5 by 3
84/15
Multiply 8/3 by 5
40/15

Add - 84+40=124

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disa [49]

Answer:

QRT = 47, TRS = 133

Step-by-step explanation:

Since QRS is a line, QRT + TRS = 180.

$QRT+TRS=180\\3x+5+10x-7=180\\$

Then, solve for x. Combine like terms.

$13x-2=180\\13x=182\\x=14$

Then, plug in 14 for x.

$1. (3*14+5)\\\\QRT = 47\\\\2. (10*14-7)\\\\TRS = 133$

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Step-by-step explanation:

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Step-by-step explanation:

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