Question

HEEEEELP PLZ WILL GIVE 30 POINTS!!!!!!!!!!

Answer 1

Emily pays 10.40 and Andy pays 8 dollars

Explanation:

• So let's start with Emily, she need 21 feet of wire, so we convert this to inches so;
• 
  `1foot=12inches\\ 21feet=(12inches)*21=252inches` but it's not listed on the table
• So we try to find the closest approximation to 252 inches which we get by adding 100 inches and 160 inches to get 260 inches
• So Emily will pay the cost of those to lengths so 100 inches cost 4.00 dollars and 160 inches costs 6.40 dollars
• so she pays 4.00+6.40=10.40 dollars
• Now for Andy we do much the same and find the inches in 11 yards
• 
  `1 yard=36inches\\ 11yards=(36inches)*11=396inches` this is also not listed
• So we get the closest approximation, which is 4 of the 100 inch wires, so we get 400 inches costing 4*4.00=8 dollars

Answer 2

Answer=

Well first we got to convert yards and feet into inches.

21 feet=252 inches

11 yards=396 inches

Alright so now that we have the inches needed we must find the cost for both Emily and Andy’s needed wire.

Emily:

We know how much it would cost for 200 inches, which is 8$.

15 inches adds a .60$ increase, which means that 5 inches is equivalent to .20$. By adding that to .60$ we get .80$ or the amount it would cost for 20 inches. We now know how much it would cost for 40 inches, 1.60$.

8+1.60=9.60 or how much it costs for 240 inches.

If it costs .80$ for 20 inches that means it costs .40$ for 10 inches.

9.60+.40=10

To find how much it costs for 2 inches we divide .40 by 5 which is .08.

10+.08=10.08$

Emily will spend 10.08$ for her needed wire.


Andy:

We know how much it would cost for 300 inches, which is 12$.

We also know how much it costs for 20 inches, which is .80$. So we multiply that by 4 to get how much it would cost for 80 inches.

.80*4=3.20

We then add that to the cost of 300 inches.

12+3.20=15.20

We know how much it would cost for 10 inches, which is .40$.

So we add that to the amount it would cost for 380 inches.

15.20+.40=15.60

Finally we know how much it costs for 2 inches, which is .08$. So we multiply that by 3 to find how much it costs for 6 inches.

.08*3=.24

We then add that to how much it would cost for 390 inches.

15.60+.24=15.84$

Andy will spend 15.84$ for his needed wire.