Answer:
x = 147/5 and y = 78
Step-by-step explanation:
First solve by substitution and put 78 into y in -5x + 2y = 9 so you get 147/5
then plug 147/5 into x and find y
Answer:
for the first blank 7 the second blank is 49
Step-by-step explanation:
So what you do is cange 3 1/2 to 3.5 and multiply it by 14 getting 49 the you divide that by 7 and get 7 and then the last step is to multiply 7 times 7 to get 49
Answer:
Step-by-step explanation:
Let c represent the minimum number of crafts that Odell must sell at the fair.
Odell spends $55 on supplies to make holiday crafts to sell at a local fair. This means that the total cost of supplying c crafts would be $55
If he decides to sell each craft for $2.50, then the total revenue from selling c crafts would be
2.5c
If he wants to earn more than $130 selling the crafts, the inequality that can be used to determine the minimum number of crafts that Odell must sell at the fair is
2.5c - 55 > 130
Answer:
3 min.
5 balloons.
Step-by-step explanation:
How many minutes does it take to make one balloon sculpture?
t = (Total time) / (Total identical balloon sculptures) = 96 / 32 = 3 min.
How many balloons are used in one sculpture?
n = (Total balloons) / (Total identical balloon sculptures) = 160 / 32 = 5 balloons.
Step 1: LCM of 24 , 30 and 60 = 120
so 120 is the least no which is divisible by all 24 , 30 and 60
Step 2: factors of 120 will be 2^3 * 3 * 5
so the least perfect square, which is divisible by 24, 30 and 60 will be
(2^3 * 3 * 5) x ( 2 * 3 * 5 ) = 3600
3600
