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Oxana [17]
2 years ago
9

NEED HELP 40 points !!!

Mathematics
1 answer:
erma4kov [3.2K]2 years ago
6 0

Answer:

11 is 4:6

12 is 0

Step-by-step explanation:

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So I kinda forgot how to do this *nervous laughter* um help​
natali 33 [55]

1) value of x =60

2) value of x = 3

Step-by-step explanation:

We need to use cross products to solve the proportions of x.

1.\,\, \frac{3}{5}= \frac{x}{100}

Solving:

\frac{3}{5}= \frac{x}{100}\\Cross\,\,multiply\,\,:\\5x=3*100\\5x=300\\x=\frac{300}{5}\\x=60

So, value of x =60

2.\,\,\frac{x}{8}=\frac{7.5}{20}

\frac{x}{8}=\frac{7.5}{20} \\20x=7.5*8\\20x=60\\x=\frac{60}{20}\\ x=3

So, value of x = 3

Keywords: Ratio and Proportions

Learn more about Ratio and Proportions at:

  • brainly.com/question/8280736
  • brainly.com/question/10764770
  • brainly.com/question/13062539

#learnwithBrainly

7 0
3 years ago
10x^3/5x^2 2/x. 2x 2 x/2
Troyanec [42]
-5x•(2x^2+x+3) is the answer
8 0
2 years ago
Find the surface area of the prism
Bess [88]

Answer:

it would be 124mm

Step-by-step explanation:

you multiply the base x height

3 0
3 years ago
CAN SOMEONE GIVE ME THE STEPS I HAVE THE ANSWERS I JUST NEED THE STEPS
natali 33 [55]

Problem 1:

1) 3/5x-1 x 3/4=9/10

3x/5-1 x 3/4=9/10

2) 3x/5-1 x 3/4=9/10

3x/5-3/4=9/10

3) 3x/5-3/4=9/10

+3/4 +3/4

4) 3x/5=33/20

5) 5 x 3x/5= 5 x (33/20)

6) 3x=33/4

7) 3x=33/4

/3 /3

8) x=11/4

Problem 2:

1) 6/7+2/5x=-4/5

6/7+2x/5=-4/5

2) 6/7+2x/5=-4/5

-6/7 -6/7

3) 2x/5= --58/35

4) 5 x 2x/5= 5 x (--58/35)

5) 2x= --58/7

6) 2x= --58/7

/2 /2

x= --29/7

3 0
3 years ago
Use the diagram to solve. What is 135% of 280?
Darina [25.2K]
378% is the correct answer. Divide 280 by 100 to find 1 percent. Then multiply by 135 to find 135%
4 0
2 years ago
Read 2 more answers
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