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3 years ago

1. 108 identical books have a mass of 30 kg. Find

Mathematics

1 answer:

AURORKA [14]3 years ago

8 0

Answer:

i) around 41.7 kg

ii) 72 books

Step-by-step explanation:

i) if 108 books are 30 kg then how much is the mass for 150? You cross multiply so 150 multiply by 30 and 108 multiply by x (the unknown mass). you will get 4500=108x and then 4500/108 is the unknown mass.

ii) use the same way as above.

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2,451 - 745 = 1,706

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2 years ago

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2 years ago

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3 years ago

Put the equation in standard form.<br><br> y - 1 = -1/3 (x - 6)

Drupady [299]

Answer:

x + 3y = 9

Step-by-step explanation:

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Given

y - 1 = - $\frac{1}{3}$ (x - 6)

Multiply through by 3 to clear the fraction

3y - 3 = - (x - 6) ← distribute parenthesis by - 1

3y - 3 = - x + 6 ( add x to both sides )

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3 0

3 years ago

Valarie made fruit drinks for a birthday party. She used 3/6 of a cup of grape juice, 5/6 of a cup of strawberry juice, and 2/6

Nana76 [90]

Answer:

Valarie make $1\frac{2}{3}\ cups$ of fruit drink.

Step-by-step explanation:

Given:

Valarie made fruit drinks for a birthday party.

She used 3/6 of a cup of grape juice, 5/6 of a cup of strawberry juice, and 2/6 cup of soda. She mixes all the juices together.

Now, to find cups of fruit drink Valarie make.

As given that she mixes all juices altogether.

So, to get the cups of fruit drink we add all quantities of juice:

3/6 cup of grape juice + 5/6 cup of strawberry juice + 2/6 cup of soda.

$=\frac{3}{6} + \frac{5}{6} +\frac{2}{6}$

$=\frac{3+5+2}{6}$

$=\frac{10}{6}$

<em>Dividing numerator and denominator by 2 we get:</em>

$=\frac{5}{3} =1\frac{2}{3}$

Therefore, Valarie make $1\frac{2}{3}\ cups$ of fruit drink .

8 0

3 years ago