4 years ago

B. the sum of 1/5 of m and 2/5 of m

Mathematics

1 answer:

Flauer [41]4 years ago

3 0

Answer: 0.6 meters

Step-by-step explanation:

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The perimeter of a rectangular metal plate is 15 cm. Find the length of the rectangular plate (in decimals) whose width is 228 c

scoray [572]

The Solution.

Representing the problem in a diagram, we have

By formula,

$P=2(L+W)$

In this case,

$P=15\operatorname{cm},L=?,W=\frac{22}{8}cm$

Substituting these values in the formula above, we get

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Clearing the bracket, we get

$15=2L+(2\times\frac{22}{8})$ $\begin{gathered} 15=2L+\frac{11}{2} \\ \\ 15=2L+5.5 \end{gathered}$ $\begin{gathered} 15-5.5=2L \\ 9.5=2L \end{gathered}$

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Therefore, the correct answer is option C.

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1 year ago

0.9/0.5 = a/10 Plz help

jonny [76]

Answer:

Step-by-step explanation:

10/0.5 = 20

20 * 0.9 = 18

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3 years ago

Read 2 more answers