Answer:
D sentence 5
Step-by-step explanation:
Answer:
6480 quarts in 48 hours
3240 quarts in a day(24 hours)
Step-by-step explanation:
2*24 is 48, so then 270*24=6480
and then half of 48 hours is a day so just half of 6480
Answer:
665 bagels in 19 hours
Step-by-step explanation:
They can make 350 bagels in 10 hours so
350÷10=35 which means they can make 35 per hour. (the rate per hour)
35×19=665
so they can make 665 bagels in 19 hours
The best method for solving # 1 is substitution
x - 0.9y = 4.5......x = 0.9y + 4.5
now sub 0.9y + 4.5 in for x in the other equation
1.5(0.9y + 4.5) - 1.9y = -29 ----distribute through the parenthesis
1.35y + 6.75 - 1.9y = -29
1.35y - 1.9y = -29 - 6.75
-0.55y = -35.75
y = -35.75 / -0.55
y = 65
x - 0.9y = 4.5
x - 0.9(65) = 4.5
x - 58.5 = 4.5
x = 4.5 + 58.5
x = 63
solution is (63,65)
The best method for solving # 4 is by elimination
14x + 7y = 217
14x + 3y = 189...multiply by -1
-----------------
14x + 7y = 217
-14x - 3y = -189 (result of multiplying by -1)
----------------add
4y = 28
y = 28/4
y = 7
14x + 7y = 217
14x + 7(7) = 217
14x + 49 = 217
14x = 217 - 49
14x = 168
x = 168/14
x = 12
solution is (12,7)
Find A U B. A){3,7}B){3,5,6,7}C){2,3,5,7,8,9,12}D){3,5,6,7,8,11,12}
scoray [572]
Answer:
{3,5,6,7}
Step-by-step explanation:
We need only to pick numbers from 2 sums, A and B, together
