Answer:
10 pounds
Step-by-step explanation:
Let x represent the amount of raisins Meg have in her supply. She uses 1/2 of her supply of raisins to make trail mix and 3/10 of her supply of raisins to make cookies which gives a total of 8 pounds of raisins being used. To find the amount of raisins she has in her supply, we use the equation:
(1/2)x + (3/10)x = 8
multiply through by 20:
(1/2)x * 20 + (3/10)x * 20 = 8 * 20
10x + 6x = 160
16x = 160
Divide both sides of the equation by 16:
16x/16 = 160/16
x = 10 pounds
Therefore she have 10 pounds of raisins in her supply
Answer:
(a+b)(c+d)=a c+a d+b c+b d is the formula
Step-by-step explanation:
Answer:
The total distance the group ran can be represented by d > 400 m
Step-by-step explanation:
The total distance the group ran can be got by summing up all the individual distances ran by each athlete.
Let the distance the first athlete ran be x
from the question, we know that x >100 m
since all four athletes ran the same distance, the total distance run , d will be four times the distance ran by an athlete.
d > 4 X 100
d > 400 m
Answer:
Step-by-step explanation:
9x-7=-7
9x - 7 + 7 = -7 + 7
9x= 0
x = 0
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Answer:
a 90° clockwise rotation about the origin and then a reflection a cross the x-axis
