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2 years ago

Will GiVE BRAINLIEST!!!!

Mathematics

1 answer:

Usimov [2.4K]2 years ago

7 0

Answer

Step-by-step explanation:

To find the x value, you want to cancel out the y terms in the equations. To do so, multiply (2x+5y=6) by 2, and (-x+2y=-3) by -5. This gives you

4x+10y=12

5x-10y=15

You can then cancel out the y terms and add the other terms from the 2 equations together to make

9x=27

You then divide 27 by 9 to get 3 as the value for x.

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6+3(x+4)=24. solve the following equation please

Evgen [1.6K]

Answer:

The answer to this equation will be 2 for x

Step-by-step explanation:

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2 years ago

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Tony earns $100 for walking 5 dogs. how much would he earn for each dog

Natalka [10]

Answer:

500

Step-by-step explanation:

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Imagine there are 5 cards. They are colored red, yellow, green, white, and black. You mix up the cards and select one of them wi

iragen [17]

Step-by-step explanation:

step one:

given that the sample space is

red, yellow, green, white, and black. i.e (1+1+1+1+1)= 5

the sample size is 5

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step two:

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5 0

3 years ago

How do I go about solving this? <br> ((-3) -2) x 5

ss7ja [257]

Answer:

-25

Step-by-step explanation:

i got -25. i just used a calculator

8 0

2 years ago

What are the roots of the quadratic equation below?<br> x2 + 2x= -5

muminat

Answer:

No real root.

Complex roots:

$x = -1 \pm 2i$

Step-by-step explanation:

$x^2 + 2x = -5$

$x^2 + 2x + 5 = 0$

There are no two integers whose product is 5 and whose sum is 2, so this trinomial is not factorable. We can use the quadratic formula.

$x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}$

$x = \dfrac{-2 \pm \sqrt{2^2 - 4(1)(5)}}{2(1)}$

$x = \dfrac{-2 \pm \sqrt{4 - 20}}{2}$

$x = \dfrac{-2 \pm \sqrt{-16}}{2}$

Since we have a square root of a negative number, there are no real roots. If you have learned complex numbers, then we can continue.

$x = \dfrac{-2 \pm 4i}{2}$

$x = -1 \pm 2i$

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2 years ago

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