10)
6y - 16 = 4y + 6
2y = 22
y = 11
11)
2x + 5x + 5 = 180
7x + 5 = 180
7x = 175
x = 25
9514 1404 393
Answer:
Step-by-step explanation:
a) The fraction is ...
2(5 1/4)/(15 2/3) = (21/2)/(47/3) = 63/94
Two streamers will require 63/94 of the original material.
__
b) $4800 is 70% of Sara's salary, so that salary is ...
4800 = 0.70s
4800/0.70 = s = 6857.14
Sara's salary is about $6857.14.
Answer:
$24
Step-by-step explanation:
What do we know? 3 toy cars cost a total of $2.88. $2.88 divided by 3 gives us $0.96 per car. If it is $0.96 per car and there are 25 cars, that gives us a total of $24 for 25 cars.
Answer:
We can't find the answer unless there's the total amount of circumstances.
Step-by-step explanation:
QR= 2x-7
RS= x-61
QS= x+11
2x+7+x-61+x+11
? = 4x-43
Answer:
h(t) = 4.68 seconds
Step-by-step explanation:
The function that represents the height of each firework in feet is :
.....(1)
We need to find the time the fireworks take to reach their maximum height. For maximum height,
dh/dt = 0
So,
Put t = 4.68 in equation (1).
So, the fireworks will take 4.68 seconds to their maximum height.
