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baherus [9]
3 years ago
8

. Write an algebraic expression for the following. the sum of 12 and 3 times a number

Mathematics
1 answer:
mariarad [96]3 years ago
4 0

let "a number" = n

"3 times a number" = 3n

"the sum of 12" = "+ 12

Combine the two terms

3n + 12, or (B) is your answer

hope this helps

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A motorist took 1.2 hour to travel 96 km how far will he travel in 1 hour
miskamm [114]

Answer:

80km

Step-by-step explanation:

To solve this problem, we need to cross multiply. Lets input the values (1.2, 1.0, 96) as shown below:

\frac{1.2}{96} = \frac{1.0}{x}

Next we cross multiply. We multiply 1.2 and x, and we multiply 96 and 1.0.

1.2(x) = 1.2x

96 x 1.0 = 96

Now, lets put the values above back into the equation:

1.2x = 96

Lets solve this equation. First we divide 96 by 1.2.

1. x = \frac{96}{1.2}

2. x = 80

This means that our answer is 80km.

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konstantin123 [22]

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Step-by-step explanation:

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