Answer:
897.2
Steps:
1) 4486 divided by 5 = 897.2
2) Estimate:
We know that if the number is less than 5 the number in front of it stays the same, so the answer will be 897.
Let x be the number of 5 points question.
Let y be the number of 2 points question.
Total number of questions is 38
x + y = 38
Total points is 100
5x + 2y = 100
x + y = 38 ------------- (1)
5x + 2y = 100 ---------(2)
From (1):
x + y = 38
x = 38 - y -------------- sub into (2)
5(38 - y) + 2y = 100
190 - 5y + 2y = 100
3y = 90
y = 30 ------------------ sub into (1)
x + 30 = 38
x = 38 - 30
x = 8
There are 8 5-point questions and 30 2-point questions
Answer:
(16,-1)
Step-by-step explanation:
Answer:
B 55
Step-by-step explanation:
not positive but if your in a crunch this is what seems right to me, i would wait for others answers tho
She bought 24 cans. (8 were free)
Explanation:
32 cans divided by 4 (three cans and one free can). You then multiply the answer, 8, by 3, to get 24 cans that Tessera bought and 8 she got for free.
