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2 years ago

40% of students in a school wore blue on a spirit Day. If two

Mathematics

2 answers:

stealth61 [152]2 years ago

4 0

Answer:

60%

Step-by-step explanation:

yiu take 100%-40%= 60%

dmitriy555 [2]2 years ago

4 0

60% were not wearing blue

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Please answer question plz!!!!!

Neporo4naja [7]

Answer:

V = 214.32

Step-by-step explanation:

Remark

You have to be a little careful with this question. The temptation is just to take the difference of the heights. That is not correct. The difference has to be multiplied by the base to get the volume.

Formula

V = (h1 - h2)* Base

Givens

h1 = 32.9

h2 = 29.1

Base = 56.4

Solution

V = 56.4 ( 32.9 - 29.2)

V = 56.4 * 3.8

V = 214.32

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2 years ago

Find the area of the figure

Anna71 [15]

Answer: 52x+4

Step-by-step explanation: Do 16(2x-1)+4(5x+5) and get 52x+4.

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3 years ago

What is the range? 6 7 8 7 10

jeka94

Range= 4

Range is the highest number minus the lowest number, 10-6=4

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2 years ago

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The area of a rectangular wall of a barn is 252 square feet. Its length is 10 feet longer than twice its width. Find the length

valentinak56 [21]

Answer: Length = 28 feet and width = 9 feet

Step-by-step explanation:

Let x = width of the wall.

Then, Length of the wall = 10+2x

Since , Area of rectangle = length x width

Then, as per given,

$252= (10+2x)x\\\\\Rightarrow\ 252=10x+2x^2\\\\\Rightarrow\ 2x^2+10x-252=0\\\\\Rightarrow\ x^2+5x-126=0\\\\\Rightarrow\ x^2+14x-9x-126=0\\\\\Rightarrow\ (x+14)-9(x+14)=0\\\\\Rightarrow\ (x+14)(x-9)=0\\\\\Rightarrow\ x=-14 \ or \ x= 9$

Since width cannot be negative , so x = 9

So width = 9 feet and length = 10+2(9)=10+18 = 28 feet

Hence, length is 28 feet and width is 9 feet of the wall of the barn.

7 0

3 years ago

I need to know all the angles that are congruent

Alinara [238K]

Congruent to angle 1: 3, 5, 10, 8, and 6
congruent to angle 2: 4, 9, and 7

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2 years ago

Read 2 more answers