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Lyrx [107]
3 years ago
5

She runs at a speed of 7 miles per hour for 11.2 miles. for how many hours does she run?

Mathematics
1 answer:
Mama L [17]3 years ago
8 0
To answer this problem, given the speed is 7mph and the distance is 11.2mile and its obvious that we can divide the given distance by the speed. The answer is 11.2/7= 1.6 hours
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Derek owns a landscape business. He charges a fixed fee of $30 plus $1 per 1,000 square feet of lawn mowed. Derek's earnings (in
fgiga [73]
Let f(x) represents function that tells us Derek's earning depending on square feet of lawn mowed which is x.

First we construct function:

f(x) = x/1000 * 1 + 30

x/1000 is a number that tells us the number of mowed units. for x = 1000 square feet he earns 1 dollar that is why we have to divide x by 1000.

if he earned 204 first week that means that x =:
204 = x/1000 + 30
x/1000 = 174
x = 174 000
if we check for each week that he worked we will see that square footage of the lawns he mowed match forth (last) option.

Answer is D.
8 0
2 years ago
Read 2 more answers
Arrange the following in numerical order lowest first:
Hunter-Best [27]

Answer:

-2.7, - 0.13, - 0.05, 1.9, 1.91, 21.025, 21.2

7 0
3 years ago
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An apple grower finds that if she plants 40 trees per acre, each tree will yield 150 bushels of apples. She also estimates that
kozerog [31]

Answer:

41 trees per acre

Step-by-step explanation:

For each tree per acre

Yield = 150 bushels of Apple

: Each tree tree will have :

150/40 = 3.75 bushels of Apple

Now;

For an additional tree(= 41 trees)

We would normally have for an acre to be

( 150/40) × 41 = 153.75 bushels of apples

But since in this case, there is a decrease of three bushel, we have

For the 41 trees per acre to be

153.75 - 3 = 150.75

Hence,

For each tree, we would have:

150.73 / 41 = 3.677 bushels of Apple

Conclusion:

40 trees yields 150 bushels of Apple per acre

41 yields 150.75 bushels of Apple per acre

6 0
3 years ago
Adison earned $25, then she gave $18 away, and then got $50 for her birthday. She now has $86 dollars. How much money did she ha
DochEvi [55]
1. Subtract $18 from $25.
2. Add $50 to that.
3. Subtract the total from $86.
What remains is how much Adison had to begin with.
5 0
3 years ago
Ok
julsineya [31]

Answer:

X=5.086

Step-by-step explanation:

432.34 on  the number line, converted to negotiable /85 decimal places, divided by the sum of 432.34/85:

X=5.086

Edit: Gime branlies

3 0
2 years ago
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