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sesenic [268]
3 years ago
9

2x + y = 93x - y = 16​

Mathematics
2 answers:
snow_tiger [21]3 years ago
7 0

Answer:

X=7 y=-5

Step-by-step explanation:

2x+y=9

3x-y=16

use the process of elimination finding out what works for one problem and try it on the other until they both work

Nesterboy [21]3 years ago
4 0

Answer:

x=5 y=-1

Step-by-step explanation:

5x=25

x=5

2(5)+y=9

10+y=9

y=-1

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4 0
3 years ago
Paul can type 60 words per minute and Jennifer can type 80 words per minute. How does Paul’s typing speed compare to Jennifer’s
yan [13]
I'm not certain how exactly this question is supposed to be answered. 

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Another answer could be Paul's typing speed is 3/4ths of Jennifer's typing speed.

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4 0
3 years ago
Read 2 more answers
How to solve 5(x+2)(x-2)
nevsk [136]
The answer is: 5x^2-20
7 0
3 years ago
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andrew-mc [135]

Answer:

x^{2} -8x+12

Step-by-step explanation:

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3 0
3 years ago
a 1 kg ball has 10 joules of kinetic energy and starts to roll up a hill how far up the hill will it be when it stops
AURORKA [14]

Answer:

<em>The ball will roll upto </em><em>1 m.</em>

Step-by-step explanation:

A 1 kg ball has 10 joules of kinetic energy and starts to roll up a hill.

As along the hill the ball rises up, it loses its kinetic energy. The kinetic energy is converted to potential energy.

According to the law of conservation of energy, the kinetic energy plus the potential energy equals a constant.

Here given kinetic energy as 10 J, so this energy will get converted to potential energy.

We know that, potential energy is

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Putting the values,

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\Rightarrow 10=10 h

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7 0
3 years ago
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