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JulsSmile [24]
3 years ago
13

The equation 9x=27 has an answer of x=3. Write down five different equetions with An answer of x=3

Mathematics
1 answer:
Vaselesa [24]3 years ago
5 0

Answer:

Read below.

Step-by-step explanation:

Possible equations with x as 3:

2x=6

3x=9

4x=12

5x=15

10x=30

10+2x=16

4x+32=44

23-5x= 8

42÷2x=7

2x × 2=12

These are just a few possibilities with x as 3.

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5 0
3 years ago
Three times one number added to five times another number is 54. The second number is two less than the first. Use a system of e
worty [1.4K]

Answer:

8 and 6

Step-by-step explanation:

If you use x for the first number, and y for the second, you get equations of 3x+5y=54 and x-2=y.

You can substitute the second equation into the first one to solve it. This gives 3x+5(x-2)=54.

The brackets can be expanded to 3x+5x-10=54. Collecting like terms makes it 8x-10=54.

Next, we add 10 to both sides. This gives 8x=64.

From there, we isolate the x by dividing both sides by 8, giving x=8.

To work out the second number, we can sub 8 for x in either equation (I'm using the second one as it's simpler).

This comes to y=8-2, therefore y=6.

**This content is simultaneous equations, which you may wish to revise. I'm always happy to help!

3 0
3 years ago
Liam took 70 steps, for a minute, if he walked for 5 minutes, what would the ratio of feet to minutes be?
MissTica

Answer:  70:1 350:5

Step-by-step explanation:  multiply 70 by 5 :)

8 0
1 year ago
Read 2 more answers
Simplify. 1+32⋅2−5 A −48 B14 C15 D27
saul85 [17]

Answer:

14

Step-by-step explanation:

im different

8 0
3 years ago
Andre and Elena are reading the same book over the 1 summer. Andre says he has read of the book. Elena ! says she has read 20 mo
ddd [48]

Answer: There are 175 pages in the book.

Step-by-step explanation:

If Elena read 20 more pages than Andre and she read 55 pages, to find out how much Andre read you have to:

55-20= the pages Andre read

55-20=35

Andre read 35 pages.

If Andre read 1/5 of the book, then to find how many pages are in the book, you have to multiply 35 x 5. (Multiply by the reciprocal)

35 x 5= 175

There are 175 pages in the book.

7 0
2 years ago
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