Answer:
Estimated answer = 57.0
Exact answer = 54.04
Step-by-step explanation:
Since 19.3 is lesser than 19.5, it will be rounded down to 19.0
Since 2.8 is greater than 2.5, it will be rounded up to 3.0
<u>Estimated multiplication</u>
19.0 * 3.0 = 57.0
<u>Actual multiplication</u>
19.3 * 2.8 = 54.04
First, x+y=60 and solve for x
x= 60-y
Then set up the equation 11x+6y=460
Since, x=60-y, you plug in for y
11(60-y)+6y=460
660-11y+6y=460
660-5y=460
660-660-5y=460-660
-5y=-200
Divide both sides by 5 (you can drop the negative because they are both negative)
5y/5 = 200/5
y=40
Then take y & plug it back into the original equation of:
x+y = 60 (solve for x)
x+40=60
x+40-40=60-40
x=20
The answer is 20 adult tickets (x) and 40 child tickets (y) were sold.
Answer:
A)15x+30=weekly income
B)8 hours
Step-by-step explanation:
15x+30= weekly income
The 15 multiplies because it says per hour
The 30 is constant because she only earns it once (per week)
15x+30=150
minus 30 from both sides
15x=120
divide by 15
x=8
Che set amount by A+ Fence company would be around $140 per foot
Answer: 170 cm
Step-by-step explanation: 5x12=60. 60+8=68. 68x2.5=170.
