3 years ago

Pleaseeeeeeeee helppp

1 answer:

8 0

2(x-1)=42
2x-2=42
2x=44
X=22

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madam [21]

Answer:

7(1/2)

Step-by-step explanation:

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3 years ago

QveST [7]

There are 120 choices.

5 × 4 × 3 × 2×1 = 120 choices

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3 years ago

Basile [38]

I think is gonna be B

3 0

3 years ago

kirill115 [55]

Answer:

15 quarters, 10 nickels

Step-by-step explanation:

$q+n=25$

$0.25q+0.05n=4.25$

multiply the first equation by -0.25 and add the second equation to it

$-0.25q-0.25n=-6.25\\0.25q+0.05n=4.25$
________________
$-0.2n=-2$

$n=\frac{-2}{-0.2} =10$ has 10 nickels

$q=25-n=25-10=15$ has 15 quarters

10(.05) +15(0.25) = 0.5 + 3.75 = 4.25

Hope this helps

8 0

1 year ago

dangina [55]

It is the same as multiplying by 2/3, the equation being 2/3n n being the number

3 0

3 years ago