Question

Jej pls help someone didnt get right b4 i give 50 points

Answer 1

Answer:

Mixed Number: 11 1/5

Improper Fraction: 56/5

Step-by-step explanation:

Given:

It takes 3/7 tonnes of sand to make a tonne of concrete.

Mason has 4 4/5 tonnes of sand.

To Find:

How much concrete, in tonnes, can he make?

Give your answer as a fraction in its simplest form.

Solve:

By the given , takes 3/7 tonnes of sand = tonne of concrete.

Thus, we divide the total of tonnes of sand Mason have by how many it takes to make a tonne of concrete.

Hence, we have;

$4\frac{4}{5}\div \frac{3}{7}$

Convert to improper fraction;

$=\frac{24}{5}\div \frac{3}{7}$

Using the fraction rule;

$\frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}$

$=\frac{24}{5}\times \frac{7}{3}$

Cross-cancel common factor - 3

$=\frac{8}{5}\times \frac{7}{1}$

Multiply fraction:

$=\frac{56}{5}$

Convert improper to mixed number:

$=11\frac{1}{5}$

Hence, the answer is $\mathrm{11\frac{1}{5}\;or\;\frac{56}{5} }$

RevyBreeze

Answer 2

Answer:

$\rm Improper \ fraction : \sf \sf \dfrac{56}{5} \ of \ concrete$

$\rm Mixed \ fraction: \sf 11\dfrac{1}{5} \ of \ concrete$

Explanation:

$\sf concrete = total \ tones \ of \ sand \ \div \ unit \ rate \ of \ sands \ required \ to \ make \ concrete$

Here given:

• total tones of sand = 4 4/5

• unit rate of sand required = 3/7

Concrete:

$\sf \rightarrow 4\dfrac{4}{5} \div \dfrac{3}{7}$

$\rightarrow \sf \dfrac{24}{5}\div \dfrac{3}{7}$

$\rightarrow \sf \dfrac{24}{5}\times \dfrac{7}{3}$

$\rightarrow \sf \dfrac{56}{5}$

$\rightarrow \sf 11\dfrac{1}{5}$