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2 years ago

Please help I’m struggling badly

Mathematics

1 answer:

Nady [450]2 years ago

4 0

Answer:

yea bro should be the first one

Step-by-step explanation:

since the ratio is 5.5/5 we could scale it up to 11/10 and so f times that should be the amount of f used for every b that this girl used

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Use back-substitution to solve the system of linear equations.

ludmilkaskok [199]

Step-by-step explanation:

x - y + 5z = 29

y + 2z = 4

z = 7

since z = 7 we can use this value in second equation

y + 2×7 = 4 and y = -10

now we know the value of y we can solve the first equation

x -(-10) + 5×7 = 29

x + 10 + 35 = 29

x = -11

5 0

3 years ago

Read 2 more answers

Is (-4,4) the solution of the system. 4x+5y>-6 and -2x+7y>20

nikklg [1K]

Answer:

It is <em>a</em> solution, one of an infinite number of solutions.

Step-by-step explanation:

You can check to see if the given point is in the solution set:

4(-4) +5(4) = -16 +20 = 4 > -6 . . . . yes

-2(-4) +7(4) = 8 +28 = 36 > 20 . . . yes

The offered point satisfies both inequalities, so is in the solution set. It is not <em>the</em> solution, but is one of an infinite number of solutions.

7 0

3 years ago

A box contains eight cards labeled P, Q, R, S, T, U, V, and W. One card will be randomly chosen.

Varvara68 [4.7K]

Answer:

7/8

Step-by-step explanation:

Probability= (Cards having letter Q to W)/(All cards) = 7/8

6 0

3 years ago

Draw a line representing the rise and a line representing the sun of the line. State the slope of the line in simplest form.

nevsk [136]

You have to post a pic I don’t understand

4 0

3 years ago

Need help with #9 please

zlopas [31]

The first, fourth and fifth ones are linear.

The second, third and sixth are all nonlinear.

You can tell this by the fact that their lead exponents are not 1.

3 0

3 years ago