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Ilya [14]
3 years ago
14

Michelle sets up a lemonade stand to make some extra money.She spends $4.75 purchasing supplies.She earns $16.50 selling lemonad

e.How much money does she make after she subtracts her expenses?
Mathematics
1 answer:
RideAnS [48]3 years ago
7 0
16.50-4.75= 11.25 Simple subtraction.
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Monica runs on a treadmill at an average speed of 7.5 miles per hour for 15 minutes. If, the next day, she runs the same distanc
telo118 [61]

Answer:

Option 2: 14.06 minutes

Step-by-step explanation:

For the first scenario, we will convert the minutes into hours first to get all the quantities in same unit

So,

15 minutes = 1/4 hours = 0.25 hours

Speed = 7.5 miles per hour

Now using the speed, distance and time formula

Speed = distance/time

Speed = \frac{distance}{time}

7.5 = \frac{distance}{0.25}

7.5 * 0.25 = Distance

Distance = 1.875 miles

So the distance for 1st day is 1.875 miles.

For next day

Speed = 8 miles per hour

Distance = 1.875

So,

speed = \frac{distance}{time}

8 = \frac{1.875}{time}

time = \frac{1.875}{8}

time = 0.234375 hours

Converting the hours into minutes will give

0.234375 * 60 min =  14.0625 minutes

Rounding off to two decimals = 14.06 min

So 2nd option is correct..

6 0
4 years ago
Graph the line -4x+y=-8
Korolek [52]
Y = 4x - 8
hope this helps!
have a good day :)
6 0
3 years ago
Read 2 more answers
Of the following fractions: 1/4, 7/9, 7/12, and 9/16, which is the largest?
Oksanka [162]

Answer:

1/4, 7/8, 7/12, 9/16

LCM of 4,8,12,16 = 48

1/4= 1×12/4×12= 12/48

7/8= 7×6/8×6= 42/48

7/12= 7×4/12×4= 28/48

9/16= 9×3/16×3= 27/48

hence, 7/8 is the largest fraction. I hope it helps ya!!

3 0
2 years ago
Find one positive and one negative angle coterminal with an angle of <img src="https://tex.z-dn.net/?f=%5Cfrac%7B11pi%7D%7B8%7D"
zaharov [31]

Answer:

see explanation

Step-by-step explanation:

Co terminal angles are angle ± 2π, that is

\frac{11\pi }{8} + 2π

= \frac{11\pi }{8} + \frac{16\pi }{8} = \frac{27\pi }{8}

and

\frac{11\pi }{8} - 2π

= \frac{11\pi }{8} - \frac{16\pi }{8} = - \frac{5\pi }{8}

3 0
4 years ago
Graph the system of linear inequalities.
sattari [20]

Answer:

Yes. Plug in your x and y into the first given equation and you'll see why.

(7) ≥ -(2)+1

7 ≥ -1 (7 is greater than or equal to -1)

...As well as the second equation.

(7) < 4(2)+2

7 < 8+2

7 < 10 (7 is less than 10)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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