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2 years ago

Dan is thinking of a number. The quotient of thisnumber and 1.8 is31.5. Find Dan's number.

Mathematics

1 answer:

forsale [732]2 years ago

6 0

56.7

31.5 x 1.8 = 56.7, and 56.7 / 1.8 = 31.5

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How do you write 0.12 as a fraction

Arturiano [62]

[ Answer ]

$\boxed{\frac{3}{25} }$

[ Explanation ]

Rewrite 0.12 As A Fraction

-----------------------------

Rewrite Decimal As A Fraction With 1 As A Denominator

0.12 = $\frac{0.12}{1}$

Multiply To Remove Decimal Places

$\frac{0.12}{1}$ · $\frac{100}{100}$ = $\frac{12}{100}$

Find GCF, Reduce Fraction

$\frac{12 \ / \ 4}{100 \ / \ 4}$ = $\frac{3}{25}$

0.12 = $\frac{3}{25}$

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2 years ago

Help ! solve the following system of equations -9x+2y=-13 2x-9y=20

Stella [2.4K]

Answer: x = 1, y = -2

Step-by-step explanation:

-9x+2y=-13

x= 13/9 + 2/9y

2x-9y=20

2(13/9+2/9y)-9y=20

Substitute y with -2.

x= 13/9+2/9(-2)

After solving you'll see that 1 is a possible solution for x.

Check your answer

-9x+2y=-13

-9x1+2(-2) = -13

2x-9y=20

2x1-9(-2) = 20

-13 = -13

20 = 20

Therefore, x=1 and y=-2

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Answer:

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Step-by-step explanation:

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Ostrovityanka [42]

Answer:

Step-by-step explanation:

Error 1) It should be divided by 5.

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