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storchak [24]
3 years ago
11

An automobile's radiator has a capacity of fifteen quarts, and it currently contains twelve quarts of a thirty percent antifreez

e solution. How many quarts of pure antifreeze must be added to strengthen the solution to forty percent?
2 quarts
3 quarts
4 quarts
Mathematics
2 answers:
matrenka [14]3 years ago
7 0
I got 3 quarts... this is the last one I'm doing cause you are mad at me and want nothing to do with me. hope u get the rest of your answers and bye.
Varvara68 [4.7K]3 years ago
3 0
I used the answer of 3 quarts from here and it was marked wrong the correct answer is 2 quarts since it can not hold 4 quarts
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Please help :) i will really appreciate it
mihalych1998 [28]

Answer:

Maybe the second or fourth? Im not sure, sorry!

Step-by-step explanation:

4 0
3 years ago
A researcher observes the level of aggression of six 5-year-old boys over the course of a school day. The number of incidents fo
Elodia [21]

Answer:

Mean = 7

Step-by-step explanation:

Given

Data: 2, 4, 6, 12, 8, 10.

Required

Determine the mean

The mean of a data is calculated as thus:

Mean = \frac{\sum x}{n}

In this case:

n = 6

So, the formula becomes:

Mean = \frac{2+4+6+12+8+10}{6}

Mean = \frac{42}{6}

Mean = 7

3 0
3 years ago
AABC is a right triangle. If AC = 15 and BC = 17, find AB.
Schach [20]

Answer:

AC=15

BC=17

AB=?

According to Pythagore's Theorem: AB² + AC² = BC².

AB² = BC² - AC²

= (17)² - (15)²

= 289 - 225

AB² = 64

AB = √(64)

= 8.

So AB = 8.

4 0
4 years ago
What is the area of a parallelogram with a base of 38 meters and a height of 12 meters?
8090 [49]

For this case we have by definition that the area of a parallelogram is given by:

A = b * h

Where:

b: It's the base

h: It's the height

According to the data we have:

b = 38\ m\\h = 12 \ m

Substituting in the formula:

A = 38 * 12\\A = 456

The area of the parallelogram is A = 456 \ m ^ 2

Answer:

A = 456 \ m ^ 2

4 0
4 years ago
Read 2 more answers
What is the value of 7 in 6,735?
JulijaS [17]
First, you have to break the number down by expanding it to find the different number values.

          6,735
              ↓
6,000 + 700 + 30 + 5

This shows us the values of the 7 in 6,735 is 700.

Answer: 700

6 0
3 years ago
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