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pickupchik [31]
3 years ago
10

Please help thanks!!

Mathematics
1 answer:
Lostsunrise [7]3 years ago
4 0
Help with what there is nothing?
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Alberto measures the length of a piece of wire to be 105 cm. The actual length of the wire was 120 cm. What was the percent erro
natali 33 [55]

Answer:

12.5%

Step-by-step explanation:

105 over 120 is the fraction that he got so you subtract 105 from 120 to get how much he missed. 120-105=15

He miscalculated by 15 cm out of the total of 120, 15/ 120

15/120=5/40=2.5/20 multiply the top and bottom by 5 to get the percentage out of 100. 2.5 times 5 =12.5, so he miscalculated by 12.5%

7 0
3 years ago
A plan for a park has a rectangular plot of wild flowers that needs to be enclosed by 54 feet of fencing. Only three sides need
Gekata [30.6K]

SOLUTION:

Step 1:

In this question, we are given the following:

Step 2:

a) What is the largest area possible for the garden?

Now, let the length of the rectangular plot be 54 -2x,

and the width of the rectangular plot be x,

so that:

\begin{gathered} \text{Area = (54 -2x) x = 54 x -2x}^2 \\ \frac{dA}{dx}=\text{ 54 - 4x = 0} \\ We\text{ have that:} \\ 54\text{ = 4x } \\ \text{Divide both sides by 4, we have that:} \\ \text{x = }\frac{54}{4} \\ \text{x = 13. 5} \end{gathered}

Then, the largest area possible for the garden will be:

\text{Area = 54x -2x}^2=54(13.5)-2(13.5)^2=729-364.5=364.5ft^2

b) What width will produce the maximum area?

Width,\text{ x = 13. 5 fe}et

c) The length of the garden that will produce the maximum area:

\text{Length = 54 - 2x = 54 - 2( 13. 5) = 54 -27 = 27 fe}et

5 0
1 year ago
Mr. McShane was paid $240.00 on sales of $1,200. What percent commission was he paid?
Blizzard [7]

Answer:

20%

Step-by-step explanation:

(240/1200)*100

5 0
2 years ago
Pam kept track of the puppies available for adoption at the shelter. After 2 hours, there were 10 puppies available for adoption
Novosadov [1.4K]

18 puppy’s were adopted

5 0
3 years ago
Evaluate 19+5 times 5 divided by 19-15
mezya [45]

Answer:

19.2

Step-by-step explanation:

Just solve it

7 0
3 years ago
Read 2 more answers
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