MATHEMATICS HIGH SCHOOL

What percent of 100 is 30?
a. 30%
b. 333%
c. 3.33%
d. 0.3%

Answers

Answer 1
Answer: If you would like to know what percent of 100 is 30, you can calculate this using the following steps:

x% of 100 is 30
x% * 100 = 30
x/100 * 100 = 30
x = 30%

The correct result would be a. 30%.
Answer 2
Answer: We set up a proportion: 30/100= ?/100

Because we have the same denominator, the two numerators must be equivalent.

Therefore, ?= 30.

The correct answer is a. 30%

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a vertical pole 5 feet long cast a shadow of 2 feet. if at the same time a nearby tree casts a shadow of 10 feet, how tall is the tree?

Answers

The tree is 25 feet log becuase the shadow of the tree is 5 times bigger than the shadow of the pole so the tree should be 5 times bigger than the vertical pole which is 5 feet long.

Julia enjoys shooting paper balls into the wastebasket across her office. She misses the first shot 50% of the time. When she misses on the first shot, she misses the second shot 20% of the time. What is the probability of missing two shots in a row

Answers

First, convert the percentages into fractions. Since Julia misses 50% of her first shots, she misses 1/2 of her first shots. Since she misses 20% of her second shots (after missing the first one), she misses 1/5 of her second shots. 

To find the probability of missing two shots in a row, multiply the two fractions together:

1/2 x 1/5 = 1/10

1/10 correlates to 10%. So, Julia has a 10% probability of missing two shots in a row.

Answer:

10%

Step-by-step explanation:

Cause i took test

Simplify negative 15.5 divided by 5. and pls tell me how to simplify and give a step by step explanation thanks!

Answers

Answer:

The answer is -3.1, or 3 1/10.Since diving a negative and a positive equals a negative, your quotient will be negative. You can start by removing the 0.5, and divide 15 by 5 which is 3. Then with the 0.5 from -15.5, divide it by 5 and you get 0.1. 3 plus 0.1 is 3.1, and since it has to be negative, it's -3.1.

Step-by-step explanation:

i tried, have a nice day (:

The point (5, -1) is a solution of the equation: y = 2x − 11 question 28 options: true false

Answers

True
This is because on replacing for x=5;
y=2x-11
y=2(5)-11
y=10-11
y=-1

Jana bought a car for $4200 and later sold it for a 30% profit. How much did Jana sell the car for?

Answers

Jana bought a car for $4200 and later sold it for a 30% profit. How much did Jana sell the car for? $1260

D=a+b+c solve for b
I need some help

Answers

Hi Walker


d=a+b+c

Flip

a+b+c=d

Add -a to both sides

a+b+c-a=d-a

b+c=-a+d

Now add -c to both sides

b+c-c=-a+d-c

b= -a-c+d


I hope that's help:0
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