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3 years ago

Divide. Write fractions in the simplest form. 9) -4.2 ÷12 10) − 2 7 ÷ − 8 21

Mathematics

1 answer:

irina [24]3 years ago

3 0

I think I’ve done this right maybe not but.
9). -0.35
I don’t know 10

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Please explain the answer. Thank you!

denis-greek [22]

Answer:

Neither

Step-by-step explanation:

Neither because sometimes as x increases, y increases and sometimes as x increases, y decreases so this graph have no corrleation so it neither.

6 0

3 years ago

-15 + 12x = 5x + 7 -3x SOLVE FOR X

Natali [406]

Answer: $x=\frac{11}{5}$

Simplify both sides of the equation

$-15+12x=5x+7+-3x$

$12x-15=(5x+-3x)+(7)$ (Combine Like Terms)

$12x-15=2x+7$

Subtract 2x from both sides

$12x-15-2x=2x+7-2x\\10x-15=7$

Divide both sides by 10

$\frac{10x}{10} =\frac{22}{10}$

$x=\frac{11}{5}$

6 0

3 years ago

Read 2 more answers

Help asap plz fast just need awncers

frutty [35]

I only know the answers for 10 and 11

10. 903.6 divided by 25.1 = 36 Estimate: 36
11. 760.38 divided by 0.38 = 2,001 Estimate: 2,000

6 0

3 years ago

What model represents 2x0.9

natima [27]

Answer: the bottom one

Step-by-step explanation:

3 0

4 years ago

He counted 206 wheels and 170 pedals. How many bicycles and tricycles does he have.

noname [10]

Bicycle has 2 wheels and 2 pedals
tricycle has 3 wheels and 2 pedals

EQ 1 : 2b + 2t = 170 pedals

EQ 2: 2b +3t = 206 wheels

subtract EQ 1 from EQ 2

2b +3t = 206 - 2b + 2t = 170 = t=36

there were 36 tricycles

36 x 2 = 72 pedals

170 pedals - 72 = 98 pedals left
98/2 = 49 bicycles

36 Tricycles and 49 bicycles

8 0

3 years ago