2 years ago

A pile of sand has a weight of 90kg.

Mathematics

1 answer:

ankoles [38]2 years ago

3 0

Answer:

9Kg, 18Kg and 63 Kg

Step-by-step explanation:

Sum the parts of the ratio, 1 + 2 + 7 = 10 parts

Divide the weight of sand by 10 to find the value of one part of the ratio

90 Kg ÷ 10 = 9 Kg ← value of 1 part of the ratio, thus

2 parts = 2 × 9 Kg = 18 Kg

7 parts = 7 × 9 Kg = 63 Kg

Thus the weights of each bag are 9 Kg, 18 Kg and 63 Kg

You might be interested in

Multiply. 310×(−45) Enter your answer as a fraction, in simplified form, in the box.

liraira [26]

-13950 there you go!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

4 0

3 years ago

Can someone tell me step by step how to solve this?

sasho [114]

Answer:

Step-by-step explanation:

I take it that this is some sort of ratio. Start by solving the brackets on the left.

Brackets: 1/3 - 1/10

Brackets: 10/30 - 3/30

Brackets: 7/30

Brackets^2: 49/900

Brackets^2 - 1/5: 49/900 - 180/900

Brackets^2 - 1/5: -131/900

(2/5)^2 = 4/25

The way this read, it should be

$\frac{\frac{-131}{900} }{\frac{4}{25} }$

Which when you invert and multiply becomes

$\frac{-131}{900} * \frac{25}{4}$

which finally becomes

$\frac{-131}{144}$

7 0

2 years ago

The number of hours in d days and 6 hours

Margaret [11]

D= 0.25 days Because 6 hours is 25% of one day

5 0

2 years ago

Read 2 more answers

Help help help help help

Irina18 [472]

Sometimes never always always

5 0

2 years ago

The distance between A (-4, 2) and B(4, 2) is. answers; a - 6 b - 8 c - 4

Fofino [41]

B-8. This is because -4 to 0 is 4 and then 0-4 is 4. 4+4=8

6 0

2 years ago