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Anettt [7]
2 years ago
5

Which two ratios form a proportion?

Mathematics
1 answer:
earnstyle [38]2 years ago
4 0

Step-by-step explanation:

A ; 2 × 12 = 3×4

B; 2 × 12 = 3×6

C ; 2 × 18 = 3×18

D; 2 × 36 = 3× 12

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Can someone help me pretty please
satela [25.4K]
The answer is A. u do the othe angle and add it to the fisrt one
5 0
2 years ago
Solve the proportion for x. 2/9=3/(x+2)
attashe74 [19]

Answer:

x as a fraction: 11\frac{1}{2}

Step-by-step explanation:

Variable x cannot be equal to −2 since division by zero is not defined. Multiply both sides of the equation by 9(x+2), the least common multiple of 9,x+2.

2 ( x+ 2) = 9 x 3

Use the distributive property to multiply 2 by x + 2.

2x + 4 = 9 x 3

Multiply 9 and 3 to get 27.

2x + 4 = 27

Subtract 4 from both sides.

2x = 27 - 4

Subtract 4 from 27 to get 23.

2x = 23

Divide both sides by 2.

x = \frac{23}{2}

Simplify

11\frac{1}{2}

Hope it helps and have a great day! =D

~sunshine~

7 0
2 years ago
Read 2 more answers
A student scored 75 and 97 on her first two quizzes. Write and solve a compound inequality to find the possible values for a thi
Rainbow [258]

Answer:

85 \le \frac{75 + 97 + n}{3} \le 90; 83 \le n \le 98

Step-by-step explanation:

Score of the first two quizzes: 75 and 97

Let n represent the third score

Average score would be: \frac{75 + 97 + n}{3}.

Given that the average score fall between 85 and 90, this can be represented by the compound inequality as shown below:

85 \le \frac{75 + 97 + n}{3} \le 90

Solve for n in each statement that makes up the compound inequality:

85 \le \frac{75 + 97 + n}{3}

85 \le \frac{172 + n}{3}

Multiply both sides by 3

85*3 \le 172 + n

255 \le 172 + n

Subtract 172 from each side of the inequality

255 - 172 \le n

83 \le n

Also,

\frac{75 + 97 + n}{3} \le 90

\frac{172 + n}{3} \le 90

Multiply both sides by 3

172 + n \le 90*3

172 + n \le 270

Subtract 172 from both sides of the inequality

n \le 270 - 172

n \le 98

Combining both together, the possible values of her third quiz score would be:

83 \le n \le 98

3 0
2 years ago
How can you solve the equation 4x= 2X-2 graphically?
Vanyuwa [196]
This is 4x=2x-2 as a graph

4 0
2 years ago
Read 2 more answers
Find the equation using the point (4,8)
lora16 [44]
You need to graph it so I guess
7 0
3 years ago
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