Amanda is going to make up some concrete by mixing cement, sand and gravel in the ratio 1:3:5.
Amanda wants to make 630 kg of concrete mix.
She has 80 kg of cement, 215 kg of sand and 370
kg of gravel.
Does Amanda have enough materials to make
the concrete mix?

pls help with working out will give brainliest to fastest correct answer thanks

Yes, Amanda has enough materials to make the concrete mix.

Step-by-step explanation:

Total units = 1+3+5

                 = 9

9 units = 630kg

1 unit = 630kg ÷ 9

        = 70kg (Less than 80kg of cement, more than enough)

3 units = 3 × 70kg

           = 210kg (Less than 215kg of sand, more than enough sand)

5 units = 5 × 70kg

           = 350kg (Less than 370kg of gravel, more than enough gravel)

stop cheating

step-by-step explanation:

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart