Answer:
28
Step-by-step explanation:
C or B's so 30% + 40% = 70% so:
70/100 multiplied by 40 because 40 students
7/10 times 40 = 28
I think the answer is C hope this helps
Answer:
B - perpendicular
Step-by-step explanation:
AE is parallel to CH, and since AC is perpendicular to AE, CH and AC are perpendicular
hope this helps youu
x + y = 21
x + y - 8 = 3*y + 5
Subtract y from both sides.
x - 8 = 3y - y + 5
x - 8 = 2y + 5 Substitute x = 21 - y into the equation
21 - y - 8= 2y + 5
13 = 3y + 5 Subtract 5 from both sides
13 - 5 = 3y
8 = 3y Divide by 3
y = 8/3
x + y = 21
x + 8/3 = 21
x = 21 - 8/3
x = 18 1/3 or 18.333333
Check
The smaller number is 8/3
x + y - 8 = 3*(8/3) + 5 Remember that x + y = 21
21 - 8 = 8 + 5
13 = 13 and they check. Which one is the smaller number does not become a factor until you check your answer.
Answer:
6
Step-by-step explanation:
-6×(-1)=6
When multiplying two negative numbers, the product will always be positive. When multiplying one negative number and one positive number, the product will always be negative.
So think of this equation as 6×1, since two negatives equal a positive.
