3 years ago

Find the surface area of the rectangular prism. 4 in 10 in 3 in

Mathematics

1 answer:

yKpoI14uk [10]3 years ago

3 0

Answer: 120 in

Step-by-step explanation: You have to multiply all the numbers. Remember length.width.height is how you get your answer. .=multiply

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Solve for X: 3(x+1)=-2(x-1)-4

jarptica [38.1K]

Answer

X= -1

Step-by-step explanation:

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2 years ago

8) The height of a building h varies directly as the length and inversely as the width, if h = 25m when l = 10m and w = 5m, find

shtirl [24]

Let h,l, and w represent the height, length, and width of the building respectively

Then

$\begin{gathered} h\text{ = }\frac{kl}{w} \\ \text{where k is the constant of proportionality} \end{gathered}$ $\begin{gathered} \Rightarrow k=\frac{hw}{l} \\ \Rightarrow k=\frac{25\times5}{10}=12.5 \end{gathered}$ $\Rightarrow h=\frac{12.5l}{w}$

The new value of h = 50m, but l remains the same.

That is l = 10m

Therefore

$\begin{gathered} \frac{50}{1}=\frac{12.5\times10}{w} \\ \Rightarrow\frac{50}{1}=\frac{125}{w} \\ \text{Cross multiplying, we have} \\ 50w\text{ = 125} \\ \Rightarrow\text{ w=}\frac{125}{50}=2.5 \end{gathered}$

Hence, the width is 2.5m

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1 year ago

Molly is making peanut butter cookies. To make a batch of cookies she needs cups of peanut butter, 1.5 cups of sugar, and 1 egg.

Rina8888 [55]

Answer:

4 batches

Step-by-step explanation:

one batch calls for:

3/4 PB

1 1/2 cup SG

1 EGG

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5/1= 5

The maximum number of batches she can make before running out of ingredients is 4

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3 years ago

Convert 478 to number of tens hundreds and ones

Fittoniya [83]

My best try is :400,70,8

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3 years ago

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Lunna [17]

Answer:

I believe I would be the last one D

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