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2 years ago

35% of 20 is what number

Mathematics

2 answers:

EleoNora [17]2 years ago

8 0

It's 7

Hope I helped! ( Smiles )

Vesnalui [34]2 years ago

4 0

Percent means per one-hundred

20(35/100)=n

700/100=n

7=n

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Help plea i am beg screenshot in

stiv31 [10]

Answer:

SA = 105 in^2

Step-by-step explanation:

To find surface area, find the area of all the shapes and add it all together. This shape has 4 triangle faces. They are all the same. So we can find one of them and times by 4.

Area of a triangle:

A = 1/2b•h

= 1/2• 5 • 8

= 1/2 • 40

= 20

One triangle has area 20, so times by 4 (bc four triangles)

4•20

= 80

Area of square 5•5

= 25

Add the areas:

80 + 25

= 105 sq in

7 0

2 years ago

Write 83 as a sum of tens and ones

MrMuchimi

3 0

3 years ago

Read 2 more answers

Julie will build a rectangular pen for her dog against a barn. A wall from the barn will form one side of the pen. She has 32 m

MAXImum [283]

Answer:

<h3> The width (side perpedicular to the barn): <u>x = 8 m</u></h3><h3> The lenght (side parallel to the barn): <u>y = 16 m</u> </h3>

Step-by-step explanation:

x - the width of the barn

She has 32 m of fencing so for the lenght remain (32-2x) m of fencing:

y = 32 - 2x

Area of the fencing: A = x•y

A(x) = x•(32 - 2x)

A(x) = -2x² + 32x ← quadratic function

The maximum value of quadratic function occurs at: $x=-\frac b{2a}$

a = -2, b = 32

$x=-\frac b{2a}=-\frac{32}{2\cdot(-2)}=-(-8)=8$

32-2x = 32 - 2•8 = 16

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3 years ago

Lydia's teacher wants her class to take note of the gas prices around town and round them all to the nearest whole number. Lydia

Dima020 [189]

3.41, due to it being below .50

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2 years ago

Write a word phrase to represent the numerical expression for 4+[27-10]

vlabodo [156]

Four plus the absolute value of twenty-seven minus ten

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3 years ago