Solve the set of equations using the insertion method. Show calculation.

Mathematics

1 answer:

nekit [7.7K]2 years ago

8 0

5x+y=10
4x+3y=19 ithink this is the answer
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Solve

NISA [10]

Answer:

$r = 0.01$

Step-by-step explanation:

In order to find r we have to square both sides of the equation

$0.1 = \sqrt{r} \\ {0.1}^{2} = { \sqrt{r} }^{2}$

The *square root* sign cancels out the *squared* sign therefore:

${0.1}^{2} = r \\ 0.01 = r$

6 0

2 years ago

The formula for finding the perimeter of a rectangle is p= 2l 2w solve the formula for w.

I am Lyosha [343]

Answer:

w = $\frac{p -2l}{2}$

Step-by-step explanation:

p = 2l + 2w Subtract 2l from both sides of the equation

p - 2l = 2p Divide both sides by 2

$\frac{p -2l}{2}$ = w

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1 year ago

A bag contains 10 marbles:

Len [333]

Total number of marble = 10
3green
2red
5 blue
Probability that the first marble is red = 2/10

Probability that the second is blue = 5/9(a reduction in the total number of marbles, because after the first marble was picked it wasn't replaced)

Probability of 1st and 2nd being red and blue respectively = 2/10 × 5/9
=1/9....

Hope this helped...?

6 0

3 years ago

Can someone please explain to me how to solve these types of equations? I'm supposed to solve for x in 4^(-5x-6)=4^(9x+4)

Ksenya-84 [330]

Answer:-5/7 i think that is wrong

Step-by-step explanation:

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2 years ago

What is the hypotenuse of a triangle

Reil [10]

When it's a right triangle, its the long piece that isn't a part of the legs of the right angle.

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2 years ago