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3 years ago

8

A grade has 81 girls and 72 boys. The grade is split into groups that have the same ratio of girls to boys as the whole grade.Ho

w many girls are in a group that has 16 boys?

1 answer:

coldgirl [10]3 years ago

6 0

Answer:

18 girls I think.

Step-by-step explanation:

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Lakshmi planted 20 begonias, but her neighbor’s dog ate 7 of them. What percent of the begonias did the dog eat

Leona [35]

Answer:

100 / 20 = 5

5 * 7 = 35

So the dog ate 35% of it

Step-by-step explanation:

yea so your welcome. im 7 btw

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2 years ago

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Question 1. Enter the ratio equivalent to sin(B)

Deffense [45]

Answer:

The three questions about the given triangle has been answered below.

Step-by-step explanation:

We are given a right angled triangle whose sides are of length 20, 21 and 29.

<u>(1)</u> sin(B) = $\frac{side opposite to B}{hypotenuse}$

= $\frac{21}{29}$

= 0.72

<u>(2)</u> sin(A) = $\frac{20}{29}$

sin(A) = 0.689

∠CAB = $sin^{-1}(0.689)$

∠CAB = 43.551°

<u>(3)</u> We suppose that cosA < sinA and we haveto find which all angles will satisfy this condition.For this the angle A should be greater than 45°.

From the given options the angles that satisfy this are 55 , 66 and 75.

45 is not included as then sinA = cosA and that condition is not there.

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3 years ago

I need help with this whats the answers on #1 i suck at geometry plz

sammy [17]

Z is congruent to q.

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3 years ago

On hot, sunny, summer days, Jane rents inner tubes by the river that runs through her town. Based on her past experience, she ha

Sveta_85 [38]

Answer:

a. P(X=50)= 0.36

b. P(X≤75) = 0.9

c. P(X>50)= 0.48

d. P(X<100) = 0.9

Step-by-step explanation:

The given data is

x 25 50 75 100 Total

P(x) 0.16 0.36 0.38 0.10 1.00

Where X is the variable and P(X) = probabililty of that variable.

From the above

a. P(X=50)= 0.36

We add the probabilities of the variable below and equal to 75

b. P(X≤75) = 0.16+ 0.36+ 0.38= 0.9

We find the probability of the variable greater than 50 and add it.

c. P(X>50)= 0.38+0.10= 0.48

It can be calculated in two ways. One is to subtract the probability of 100 from total probability of 1. And the other is to add the probabilities of all the variables less than 100 . Both would give the same answer.

d. P(X<100)= 1- P(X=100)= 1-0.1= 0.9

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3 years ago

Greatest 3 digit multiple of 33 using 3 diffrent digits

mel-nik [20]

Answer:

957

The answer is this because the next 3 digit multiple of 33 would be 990.

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3 years ago

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