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lukranit [14]
3 years ago
5

How can you use an equation to find an unknown value in a proportional relationship?

Mathematics
1 answer:
Gwar [14]3 years ago
8 0

Well if you already know how to write an equation for a given set of proportions, then all you have to do is replace the unknown value with x, and then cross multiply and solve the equation. One important thing to remember is that for each proportion the numerator and the denominator have to be of the same units in the equation.

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What are the coordinates of point B on AC such that the rario of AB to BC is 2:3
pishuonlain [190]

Answer:

Step-by-step explanation:

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7 0
3 years ago
If a circle is 9 pi cm what is the radius of the circle
olganol [36]

Answer:

<h2>          4.5 cm</h2>

Step-by-step explanation:

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5 0
3 years ago
Solve for b. 3(b + -2-8=-5 what is the answer?​
ANEK [815]

<u>Equation/Question:</u>

Solve for b. 3(b + -2)-8=-5 what is the answer?​

<u>Answer/Steps to answer:</u>

1.Simplify  b+-2 to b−2.

3(b−2)−8=−5

2. Add 8 to both sides.

3(b-2)=-5+8

3. Simplify  -5+8  to  3.

3(b-2)=3

4. Divide both sides by 3.

b-2=1

5. Add 2 to both sides.

b=1+2

6. Simplify  1+2 to 3.

b=3

Done by <u>NeighborhoodDealer</u>

8 0
3 years ago
Solve 6x - 3y = 12 for y<br> A. y = 6x + 4<br> B. y = 2x - 4<br> C. y = -6x + 12<br> D. y = 2x - 12
DedPeter [7]

Answer: <em>y = 2x − 4</em>

The correct answer is <em>B)</em> <em>y = 2x − 4</em>

Step-by-step explanation:

<u>Move all terms that don't contain y to the right side and solve:</u>

<em>y = −4 + 2x</em>

<u>Then reorder −4 and 2x:</u>

<em>y = 2x − 4</em>

<u>Final answer is:</u>

<em>B) y = 2x − 4</em>

8 0
2 years ago
Read 2 more answers
How do you do this problem 1/4 +4x/5=11/20?
Nutka1998 [239]
\frac{1}{4}+\frac{4}{5}x=\frac{11}{20}\\\\\frac{4}{5}x=\frac{11}{20}-\frac{1}{4}\\\\\frac{4}{5}x=\frac{11}{20}-\frac{5}{20}\\\\\frac{4}{5}x=\frac{6}{20}\ \ \ \ \ \ \ |\cdot\frac{5}{4}\\\\x=\frac{30}{80}=\frac{3}{8}
8 0
3 years ago
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