Answer:
14 mm squared is the area
Step-by-step explanation:
Answer:
letter (c) maybe and what's next
(-2, 0)
You can find this by getting the average of the x's and the average of the y's.
Answer:
Step-by-step explanation:
Find the rate that was charged for Lara's time
rate = dollars / hour
The use this rate to calculate how many hours it took to clean Roy's house, since the rates are the same. Solve for hours.....
rate for Lara = dollars / hour = $150 / 3 hour = $50 / hour
rate for Roy = dollars / hour Solve for hours
multiply both sides by hours
(rate for Roy) (hour) = (dollars / hour) (hour)
(rate for Roy) (hour) = (hour) (dollars / hour) right side hours cancel
(rate for Roy) (hour) = (dollars) divide both sides by (rate for Roy)
(rate for Roy) (hour) / (rate for Roy) = (dollars) / (rate for Roy)
now the rate for Roy on the leftside cancel
(rate for Roy) (hour) / (rate for Roy) = (dollars) / (rate for Roy)
(hour) = (dollars) / (rate for Roy) Plug in $225 charged to Roy
and the $50 / hour rate
hour = $225 / ($50/hour) ( 1 over 1 / hour ) = hour
= $(225/50) hour think about 1 / (1/2) = 2 the same with units
hour = 4.5 hours
Answer: she would pay $1386
Step-by-step explanation:
Let x represent the cost of an adult ticket.
Let y represent the cost of a child ticket.
He spent $882 on all of their tickets; 2 adult tickets and 3 child tickets. This means that
2x + 3y = 882 - - - - - - - - - - 1
Each adult ticket costs twice as much as each child ticket. This means that
x = 2y
Substituting x = 2y into equation 1, it becomes
2 × 2y + 3y = 882
4y + 3y = 882
7y = 882
y = 882/7 = 126
x = 2y = 126 × 2
x = 252
Each adult ticket costs $252 and each child ticket cost $126
If Mrs. Smith bought 4 adult tickets and 3 child tickets, the amount of money that she would have to pay is
252 × 4 + 126 × 3
= $1386