Answer:
A is the correct answer
Step-by-step explanation:
I just did this problem
Answer:
B and C
Step-by-step explanation:
the variable would be the amount of cups sold
£15
If you add the two ratios together you get 10. Which means that the £50 is made up of 10 pieces. To get Doras amount you have to divide 50 by 10 which is five, and then times the number by how many pieces Dora has, which would be 5x3=15
D. ALL POSITIVE VALUES LESS THAN OR EQUAL TO 77 IS CORRECT
She did not convert 1 minute into 60 seconds. and 15 hours in seconds.
she did it like this:
15min ×60 seconds/1 min
900 seconds.
The SI unit of time is second so she should have converted the hours and minutes into seconds first and then start the calculation.
