3 years ago

Last question Can anybody help

Mathematics

1 answer:

ludmilkaskok [199]3 years ago

6 0

Answer:

-8/15

Step-by-step explanation:

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Solve the system using any method.<br> y = 3x + 2<br> y = 7x - 10

Marysya12 [62]

Answer:

x=3

y=11

Step-by-step explanation:

y = 3x + 2 equation 1

y = 7x - 10 equation 2

using equation 1 in equation 2 we have:

3x + 2 = 7x - 10

2=7x - 3x -10

2 = 4x -10

2+10 = 4x

12= 4x

12/4 = x

we have:

x= 3

using equation 1:

y = 3x + 2

y= 3(3)+2

y=9+2

y=11

4 0

2 years ago

Nathan is buying a cell phone for his business. The regular price of the cell phone is $179. If he buys the phone in the next 2

m_a_m_a [10]

20% off
100-20=80

find 80% of 179

percent mean psarts ouf o 100
80%=80/100=0.8

'of' means mutipy

80% of 179=
0.8*179=143.2

saleprice=$143.20

4 0

2 years ago

Read 2 more answers

Need the answer please and thank you

klasskru [66]

Hi there,

There appears to be no question....

3 0

2 years ago

A student says the prime factors of 17 are 1 and 17

Tju [1.3M]

That is correct as 17 is a prime number and can only be divided by 1 and itself

Hope this helps :)

6 0

3 years ago

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The battery on McKenzies old computer can last 4(1/5) hours. She bought a new computer that has a battery that can last 40% long

Solnce55 [7]

Answer:

$5\frac{22}{25}\ hours$

Step-by-step explanation:

we know that

$4\frac{1}{5}\ hours=\frac{4*5+1}{5}=\frac{21}{5}\ hours$

$100\%+40\%=140\%=\frac{140}{100}$

Let

x ------> new battery life

The equation that represent this situation is

$x=\frac{140}{100} (\frac{21}{5})=\frac{2,940}{500}\ hours$

convert to mixed number

$\frac{2,940}{500}=\frac{2,500}{500}+\frac{440}{500}=5\frac{22}{25}\ hours$

4 0

2 years ago