Eli is following this recipe to bake bread rolls. He uses 700 g of flour.
How much of the other ingredients does he use?
Recipe: Makes 10 bread rolls
500 g flour
7 g salt
14 g yeast
35 mL oil
350 mL water

Well 500 is 71% of 700 or 0.71.

7 divided by 0.71 = 9.8/9.9/9 g salt

14 divided by 0.71 = 19.7/19 g yeast

35 divided by 0.71 = 49.2/49 mL oil

350 divided by 0.71 = 492.9/492/493 mL water.

Depends if you round off or not.

CD = 10$

Cassette = 1$

Step-by-step explanation:

ok, time to use some variables

C = CD

S = Cassette

2c + 5s = 25$

1c + 15s = 25$

the second equation has 1 less CD and 10 more Cassettes, therefore 1c = 10s

Now we can calculate how many Cassettes we can buy

1c - 1c = 0c

15s + 10s = 25s

This means that 25s = 25$

therefore 1s = 1$

since we know that 10s = 1c, and 1s = 1$, then we can figure out how many dollars the CD is

1c = 10s = 10$

1c = 10$

Variables are helpful :)