Answer:
Step-by-step explanation:
4(5-2)+(-7)(0.5)
20-8+(-3.5)
12-3.5
8.5
Answer:
-3=(1/2)(2)+3
Step-by-step explanation:
Answer:
C. 8/1 (simplified is 8)
Step-by-step explanation:
X rate of change= +1
Y rate of change= +8
Y over X
8/1
Answer:
If I read your problem write: 126
Step-by-step explanation:
if I interpret this as
- (-3)* 2 * (5) * 2 * (7) * 3 divided by 5 * 2
we can get 126
because:
- (-3)* 2 * (5) * 2 * (7) * 3 divided by 5 * 2
= 6 * 5 * 2 *7 * 3 / (5*2)
= 60*7 * 3/ (5*2)
= 420 * 3 / 10
= 1260/10
= 126
Answer: the number of four point questions in the test is 10.
the number of five point questions in the test 8
Step-by-step explanation:
Let x represent the number of four point questions in the test.
Let y represent the number of five point questions in the test.
There are 18 questions on the test. It means that
x + y = 18
Each question is worth either four or five points. The total is 80 points. This means that
4x + 5y = 80 - - - - - - - - - - - - - -1
Substituting x = 18 - y into equation 1, it becomes
4(18 - y) + 5y = 80
72 - 4y + 5y = 80
- 4y + 5y = 80 - 72
y = 8
x = 18 - y = 18 - 8
x = 10
