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borishaifa [10]
3 years ago
6

The table and graph below show the amount of money Mi-Ling and Daniel

Mathematics
1 answer:
Over [174]3 years ago
6 0
Is there a math question and can you show it please
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Norton can mow the large lawn in about 5 hours. When he works with
astra-53 [7]

Answer:

7.5 hours

Step-by-step explanation:

The key here is to find out how much can be done in the same amount ot time

the least common multiple of 5 hrs and 3 hrs is 15hrs

In 15 hours:

- At 5 hours per lawn Norton could mow 15/5 = 3 lawns

- At 3 hours per lawn together thay could mow 15/3 = 5 lawns

In 15 hours Jesse would mow 5 - 3 = 2 lawns

15 hours/ 2 lawns = 7.5 hours per lawn

7.5 hours

--------------------

Here's the math

1 lawn/5hrs + x = 1 lawn / 3hrs

1/5 + x = 1/3

Subtract 1/5 from both sides

x = 1/3 - 1/5

x = 5/15 - 3/15

x = 2/15

x = 2lawns/15 hrs

15hrs/2lawns = 7.5 hrs per lawn

7.5 hours

5 0
2 years ago
Soybean meal is 14% protein; cornmeal is 7% protein. How many pounds of each should be mixed together in order to get 280lb mixt
TiliK225 [7]
0.14x + 0.07(280-x) = 0.08*280

0.14x + 19.6-0.07x = 22.4

0.07x + 19.6 = 22.4

0.07x = 2.8
x = 2.8 / 0.07 = 40
 x = 40 pounds of Soybean
280 -40 = 240 of cornmeal



7 0
3 years ago
What does 1,000,000,000divided by 18 • 20 - 108 equal?
Ludmilka [50]

Answer:

3,968,253.968253968

Step-by-step explanation:

7 0
3 years ago
There are 3 green marbles and 15 blue marbles in a bag. What is the ratio of green marbles to total number of marbles? Select al
Mandarinka [93]
3:18 is the answer hope this helps
8 0
2 years ago
Read 2 more answers
I have some questions that need to be answered fast.<br><br> 1. 42/j = 35/55
Novay_Z [31]

\frac{42}{j}  =  \frac{35}{55}

to solve for j first you need to cross multiply;

j × 35 = 42 × 55

35j = 2,310

j = 2,310 ÷ 35 (did the inverse operation)

j = 66

Hope that helps :D

6 0
3 years ago
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