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11Alexandr11 [23.1K]
3 years ago
14

What is the mean of the set 90, 82, 88, 78, 93,

Mathematics
2 answers:
Georgia [21]3 years ago
8 0
You need to add all of your numbers together, then divide by the how many numbers you had before you added them together. You should get 431.
vekshin13 years ago
5 0
431 would be the answer hope this helps
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Please help I need help please
Masja [62]

Step-by-step explanation:

There are 84% out of 225. First find 10%. To do that divide the number by 10, so 225 ÷ 10 = 22.5 Next, do 22.5 x 8. Then you have 80%. Now, all that is need ed is the 4%. To get that, divide 225 by 100. Multiply the answer by 4 to get the 4%. Add the 80% and the 4% to get your answer. I really hope this helps. answers

Also, since I am just helping, I am un able to give you straight answers. I hope this also helps with work in the future.

3 0
3 years ago
Past the core
Basile [38]

Answer:

Building's shadow length = 180 feet.

Step-by-step explanation:

Given:

A 50-foot flagpole is at the entrance of a building that is 300 feet tall.

Its forms a right angled triangle from both ends,both of them are similar because the angle of the sun is the same at the same time of day.

From similar triangle property we can say that.

⇒ length of the building shadow times height of the flagpole's = length of the flagpole's shadow times height of the building

Or

\frac{length\ of\ the\ building\ shadow}{height\ of\ the\ building} =\frac{length\of\ the\ flagpole's\ shadow}{height\ of\ the\ flagpole's}

Plugging the values in the above equation we have,

Let length of the building shadow ='x' feet

⇒ \frac{x}{300} =\frac{30}{50}

⇒ \frac{x}{300}\times 300 =\frac{30}{50}\times 300

⇒ x=\frac{300\times 30}{50}

⇒ x=\frac{9000}{50}

⇒ x=180 feet.

So the length of the building shadow is 180 feet.

5 0
3 years ago
3/4 divided by 5 1/5​
olga2289 [7]

Answer:

15/104

Step-by-step explanation:

To divide fractions take the reciprocal (invert the fraction) of the divisor and multiply the dividend. This is the quickest technique for dividing fractions. The top and bottom are being multiplied by the same number and, since that number is the reciprocal of the bottom part, the bottom becomes one.

6 0
3 years ago
Trigonometry, IF answer is delivered on time WILL give BRANLIEST
Lunna [17]

Answer:

x=37°

y=6

Step-by-step explanation:

(ASSUMING BD is a perpendicular bisector of AC, otherwise answers maybe be wrong)

Consider the triangle ABC:

AB is the same length as BC (marked), meaning ABC is an isosceles triangle.

Since ABC is isosceles, ∠BAC=∠BCA=53

All angles in a triangle add up to 180:

180=∠ABC + ∠BAC + ∠BCA

180= ∠ABC + 53 +53

∠ABC = 180 - 106

∠ABC = 74

Assuming BD bisects ∠ABC perfectly, x is half of ∠ABC.

x=74/2=37

If BD bisects AC perfectly, AD=DC=y=6

8 0
3 years ago
What is the solution to the following system of linear equations?
Lostsunrise [7]
<span> x − 2y = −1 => x = 2y -1

2x + y = −12
2(2y - 1) + y = -12
4y - 2 + y = -12
5y = -10
y = -2
x = 2</span>·(-2) - 1
x = -4 - 1
x = -5

Answer <span>D (-5,-2)</span>
8 0
3 years ago
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