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love history [14]
3 years ago
8

Help help help for more points

Mathematics
2 answers:
iVinArrow [24]3 years ago
8 0

Answer:

B

Step-by-step explanation:

Find out how much time she took for babysitting. She took 3.5 hours.

11 - 7.5 = 3.5

Now divide 3.5 from 15.75. You get 4.5.

That means she earned $4.5 per hour

marissa [1.9K]3 years ago
4 0
7:30 to 11:00 is 3 hours and 30 minutes she was paid 5.25 an hour
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right triangle ABC is shown below. A similar right triangle would be created by a run of 4 and rise of______
Svetllana [295]

The rise would have to be 12.

This is because in order to be "Similar" triangles the sides need to be proportionate.

(1/3 = 4/12)

4 0
3 years ago
Read 2 more answers
Janice receives $.40 per pound for 1 to 99 pounds of aluminum cans he recycles. he receives $.50 per pound if you are cycles mor
Ilya [14]

Answer:

M=\left\{\begin{matrix}0.4x &x\leq99 \\ 0.5x &x>100 \\ \end{matrix}\right.

Step-by-step explanation:

<u>Function modeling</u>

Real-life situations often require the help of mathematics to model numerically what happens when the variables involved can change. It could even be used to predict some expected outcomes from those models.

The problem states Janice receives $.40 per pound when he recycles less or equal than 99 pounds of aluminum. If x is the number of recycled pounds, then the amount of money he receives is

M=0.4x

We also know that if he recycles more than 100 pounds of aluminum, the pay increases to $0.5 per pound. In that case, the amount of money is

M=0.5x

This is a case where the function is defined differently depending on the conditions of the input variable x. It's called a piecewise function. The function can be written as

M=\left\{\begin{matrix}0.4x &x\leq99 \\ 0.5x &x>100 \\ \end{matrix}\right.

Note the function is not well constructed because there is a gap for x=100 where M is not defined. If we establish that for 100 pounds the payment is $0.5, then the second piece would include x=100

5 0
3 years ago
a rope is stretched from the top of a 7-foot tent pole to point on the ground 12 foot the base of the pole. how long is the rope
bulgar [2K]

Answer:


Step-by-step explanation:


6 0
3 years ago
the library is 0.9 miles from school. the museum is 0.6 times as far from the school as the library. how far is the museum from
LiRa [457]
Distance between library and school = 0.9 miles
Distance between museum and school = 0.9*0.6 = 0.54 miles


8 0
3 years ago
Read 2 more answers
Sydney saved $3,000 last year. She saved $600 in the month of January. What percent of the total amount of money she saved last
const2013 [10]

Answer:

20%

Step-by-step explanation:

all you do in this is divide the smaller nymber by the bigger number:

600/3000

8 0
3 years ago
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