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Ilya [14]
4 years ago
14

Why can you use fraction multiplication to check the answer to a fraction division problem? How do you use multiplication to che

ck a division problem?
Mathematics
2 answers:
Triss [41]4 years ago
5 0

Answer:

Division and multiplication are inverse operations. This means they "undo" each other. You can check your answer by multiplying the quotient by the divisor. You should get the dividend.

Check all that you included in your response.

Δ Multiplication and division are inverse operations.

Δ Multiplication “undoes” division.

Δ Verify by multiplying the quotient by the divisor to get the dividend.

You Can Check All

<em> Espero que isto ajude!</em>

<em> Means Hope This Helps! In </em><u><em>Portuguese</em></u>

Vedmedyk [2.9K]4 years ago
4 0
Ex. if your problem is 2/3 ÷ 6/1 you would keep the first fraction the same, change division to multiplication and flip the second fraction
2/3×1/6
Hint: KCC (Keep, change, change)
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Can I get some help on this math problem
pogonyaev

Answer:

x=3\sqrt{5}

Step-by-step explanation:

<u>Right Triangles</u>

Right triangles have one of its interior angles with a measure of 90°.

In right triangles the Pythagora's Theorem is satisfied.

Being c the longest side (hypotenuse), a and b the shorter sides (the legs), then:

c^2=a^2+b^2

We have modified the image to include some known data. Both triangles are congruent since they share one side, have a right angle, and have the same base length.

This means the value of x can be calculated as the hypotenuse of the triangle 3-6-x:

x^2=3^2+6^2=9+36=45

x=\sqrt{45}=\sqrt{9*5}

\boxed{x=3\sqrt{5}}

4 0
3 years ago
Simplify the expression explain each step. 10+(2+y)
GenaCL600 [577]

Answer:

y + 12

Step-by-step explanation:

1. remove parentheses.

10 + 2 + y

2.collect like terms.

y + ( 10 + 2)

3. simplify.

y + 12

Therefor, the answer is. y + 12

5 0
3 years ago
Transalte the pharse into a alegabric expression
olganol [36]
The correct answer is 8/x + 4.

6 0
3 years ago
Read 2 more answers
If 1 mile is equal to 1.61 kilometers, how many kilometers are there in 50 miles
yaroslaw [1]
80.50 kilometers. 1.61*50=80.50
8 0
3 years ago
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How do you complete problem number 4?
brilliants [131]
(I'm going to translate y' to dy/dx as it makes it easier to read for me, you could change it back if you wanted.)
x \frac{dy}{dx} -y=0
\frac{dy}{dx} = \frac{y}{x}
\int \frac{1}{y} dy= \int \frac{1}{x} dx (separate the variables)
\ln y=\ln x +c
\ln y = \ln kx (by letting c = ln k and using log laws)
y=kx (raise everything to power e)
3=k\times1 \implies k=3    (applying boundary conditions)
Particular solution: y=3x
3 0
3 years ago
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