200-(-2) is actually 200-1(-2)
So thats multiplication
Then its 200+2
So addition is the last calculation to be done.
Answer:
96 and 192 calories
Step-by-step explanation:
<u>Given</u>
<u>Divide both by 3/4 to find the unit rate:</u>
- 72:3/4 in 3/4:3/4
- 96 calories in 1 cup
<u>Then multiply both by 2 to get the calories for 2 cups:</u>
34
because, 34 = 14 + (10 x 2)
and 34 = 24 + (10 x 1)
Mr Akika has 18 21-cent stamp and 31 31-cent stamp.
He has 49 21-cent and 31-cent stamps all told.
let
x = number of 21 cent stamp
y = number of 31 cent stamp
Therefore,
<h3>Total number of stamp:</h3>
<h3>Total cost of stamp:</h3>
Therefore,
x + y = 49
21x + 31y = 1339
21x + 21y = 1029
10y = 310
y = 310 / 10
y = 31
Therefore,
x = 49 - 31
x = 18
Therefore, Mr Akika has 18 21-cent stamp and 31 31-cent stamp.
learn more on system of equation: brainly.com/question/1369852?referrer=searchResults
