Read the word problem.

Mathematics

2 answers:

Yanka [14]3 years ago

8 0

<h2>Answer:</h2>

The operations that are needed to solve this word problem and the order of operations is:

Addition and Multiplication, in that order.

<h2>Step-by-step explanation:</h2>

It is given that:

Kendra has 3 times as much money as her two younger siblings.

i.e. the sum of money both the siblings , he has three times of that sum.

Her younger brother has $10 and her younger sister has $4.

This means that the sum of money both younger siblings has is:

$ 10+$ 4 = $ 14.

Now, the money Kendra has is: 3 times of $ 14

i.e. 3×14=$ 42.

san4es73 [151]3 years ago

5 0

Answer:

Step-by-step explanation:

10 x 3 = $30

10 x 4 = $12

$30 + $12 = $42 in think thats the answer i havent been to school in a while

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Which equation can be used to solve for the rate, r, for Sam to change all the light bulbs in the office building by himself?

Bad White [126]

Answer:

$\frac{3}{r}+\frac{3}{8}=1$

Step-by-step explanation:

Given question is incomplete; here is the complete question.

Working together, Sam and Charlie can change all light bulbs in the office building in 3 hours. It would have taken Charlie 8 hours to do the job alone. Which equation can be be used to solve for the rate 'r', for Sam to change all the light bulbs in the office building by himself.

Let Sam can change the bulbs in the office alone in 'r' hours

Per hour work done by Sam alone = $\frac{1}{r}$