Question

A large bag or sugar weighs 7 1/2 lb. Gow Much does 1 1/4 bags of sugar weighs

Answer 1

Answer:

The correct option is 4.

Step-by-step explanation:

It is given that the weight of a large bag of sugar is $7\frac{1}{2}$. This complex fraction can be written as

$7\frac{1}{2}=\frac{14+1}{2}=\frac{15}{2}$

So, the weight of a large bag of sugar is $\frac{15}{2}$.

The number of bags is $1\frac{1}{4}$. It means the number of bags is number of bags is $\frac{5}{4}$.

$1\text{ Bag}=\frac{15}{2}\text{ lb}$

Multiply both side by $\frac{5}{4}$.

$1\times \frac{5}{4}\text{ Bag}=\frac{15}{2}\times \frac{5}{4}\text{ lb}$

$\frac{5}{4}\text{ Bag}=\frac{75}{8}\text{ lb}$

$\frac{5}{4}\text{ Bag}=9\frac{3}{8}\text{ lb}$

Therefore correct option is 4.

Answer 2

Answer:

(3)

$9\frac{3}{8}lb$

(4)

6÷$\frac{1}{5}$=$30$

Step-by-step explanation:

(5)

we are given

1 bag of sugar is

$=7\frac{1}{2}lb=\frac{2\times 7+1}{2}lb=\frac{15}{2}lb$

we have to find weigh of 1 1/4 bags of sugar

we can multiply both sides by 1 1/4

$1\frac{1}{4}$ bags of sugar

$=1\frac{1}{4}\times \frac{15}{2}lb$

$=\frac{5}{4}\times \frac{15}{2}lb$

$=\frac{75}{8}lb$

we can write in mixed form

$=9\frac{3}{8}lb$

(4)

we are given

6÷$\frac{1}{5}$

we know that

a÷$\frac{b}{c}$=$\frac{a\times c}{b}$

now, we can use formula

6÷$\frac{1}{5}$=$\frac{6\times 5}{1}$

6÷$\frac{1}{5}$=$30$