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cestrela7 [59]
3 years ago
13

10×+2=7 what is equal to 2x?

Mathematics
2 answers:
lakkis [162]3 years ago
3 0
x in (-oo:+oo)

2/7 = 2*x // - 2*x

2/7-(2*x) = 0

2/7-2*x = 0

2/7-2*x = 0 // - 2/7

-2*x = -2/7 // : -2

x = -2/7/(-2)

x = 1/7

x = 1/7
guapka [62]3 years ago
3 0
2X=1 because you subtract 2 from each side to isolate x, and then you get 10x=5. Then divide 5 by 10, which leaves you with x=1/2, so you multiply that by 2 to solve for 2X, which is 1
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What's 7-(7-7):8x29=
topjm [15]

Answer:

the required ratio is 7 : 232

Step-by-step explanation:

by solving both sides we get ,

=》7 - ( 7-7 ) : 8 × 29

=》7 - 0 : 232

=》 7 : 232

it's the required ratio ,

i hope you got it .

5 0
3 years ago
Can someone help me please and thankyou
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2 years ago
Evaluate the expression x2 • x1 for x = 9
miskamm [114]

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162

Step-by-step explanation:

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Holly drove 100 miles in 4 hours, and Yemi drove 100 miles in 5 hours. How can you compare the speeds of Holly and Yemi? Explain
Lelu [443]
The first thing that yo do is divide 100 by 5 for Yemi and that's how fast she drove which is 20 miles per hour. And then you do the same thing for Holly 100 divided by 4 which is 25 mph. So Holly is driving faster than Yemi. So you can compare them by dividing the miles by hours for both of them.
3 0
3 years ago
In a fitness program, Pedro does 20 sit-ups on the first day, and increases this by 2 sit-ups everyday. Determine the day when t
Fittoniya [83]

Answer:

day 540

Step-by-step explanation:

He increases his number of situps by 2 each day meaning on day 1 he'd do 2 extra, on day 2 he'd do 4 extra, on day he'd do 6 extra etc. We can show this by saying +2x where x is the day he is on.  Then since he started with 20 we have to add 20 so it would be 20+2x.  We want to know what day it is when he does 1100 situps so we can set our equation equal to 1100 and solve for X which is the day it would be.

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I hope this helps and please don't hesitate to ask if there is anything still unclear!

x=540

5 0
3 years ago
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