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bija089 [108]
3 years ago
11

Percents that are added together are _______ percents.

Mathematics
1 answer:
vivado [14]3 years ago
4 0
Percents that are added together are combining percents.
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Associative Property<br> Communtative Property<br> Identity property <br> Inverse property
algol [13]

Answer: B

Step-by-step explanation:

3 0
2 years ago
Find how many quarts of 6% butterfat milk and 3% butterfat milk should be mixed to yield 60 quarts of 4% butterfat milk.
Snezhnost [94]

Answer:

20 quarts of 6% butterfat milk and 40 quarts of 3% butterfat milk is used to make 60 quarts of 4% butterfat milk.

Step-by-step explanation:

We are given the following in the question:

Let x quarts of 6% butterfat milk be used and y quarts of 3% butterfat milk be used to make 60 quarts of 4% butterfat milk.

Thus, we can write the equation:

6\%\times x + 3\%\times y = 4\%\times 60\\6x + 3y = 240

Total amount of 3% butterfat milk = 60

Thus, we can write the equation:

x+y = 60

Solving the two equation, we get,

6x + 3y-(3x+3y) = 240 - 3(60)\\3x = 240-180\\3x = 60\\x = 20\\y = 60-20 = 40

Thus, 20 quarts of 6% butterfat milk and 40 quarts of 3% butterfat milk is used to make 60 quarts of 4% butterfat milk.

3 0
3 years ago
Discuss the differences between parametric and non-parametric tests?
lesya [120]
Nonparametric tests are also called distribution-free tests because they don't assume that your data follow a specific distribution. You may have heard that you should use nonparametric tests when your data don't meet the assumptions of the parametric test, especially the assumption about normally distributed data.
8 0
3 years ago
Find the area of the following triangle. Show each of the math steps that you use to find the area. Then explain how to go about
Diano4ka-milaya [45]

Semi perimeter:-

\\ \rm\rightarrowtail s=\dfrac{a+b+c}{2}

\\ \rm\rightarrowtail s=\dfrac{1.8+2.4+3}{2}

\\ \rm\rightarrowtail s=\dfrac{7.2}{2}=3.6cm

Apply heron s formula

Area:-

\\ \rm\rightarrowtail \sqrt{s(s-a)(s-b)(s-c)}

\\ \rm\rightarrowtail \sqrt{3.6(3.6-1.8)(3.6-3)(3.6-2.4)}

\\ \rm\rightarrowtail \sqrt{3.6(1.8)(0.6)(1.2)}

\\ \rm\rightarrowtail \sqrt{4.6656}

\\ \rm\rightarrowtail 2.16cm^2

5 0
2 years ago
Read 2 more answers
What is the equation of the line that passes through (-5,6) and (3,-10)??
Tanzania [10]
The equation is -2x-4. u can use y2-y1/x2-x1.
7 0
3 years ago
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