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Anika [276]
3 years ago
11

Mary went to the park with Amy at 2:30 pm. They played for 1 hour 30 min. At what time did the finish playing? Give your answer

in 24-hour clock format and also draw the clock.
Mathematics
2 answers:
puteri [66]3 years ago
6 0

Answer:

4:00 pm

Step-by-step explanation:

deff fn [24]3 years ago
3 0

Answer:

4:00

Step-by-step explanation

First, we add the minutes. 30 + 30 is 60. One hour is 60 minutes so we add 1 when we are adding the hours. 2 + 1 + 1 = 4 so it is 4:00 when they finished playing. I cannot draw the clock because it is not letting me do so.

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Find the area of the sector.
attashe74 [19]

Answer: C . 147π / 4 mi²

Concept:

The sector is the part of a circle is enclosed by two radii of a circle and their intercepted arc.

A = (θ / 360) πr²

θ = angle of the sector

π = constant

r = radius

Solve:

<u>Given variable</u>

θ = 270°

r = 7 mi

<u>Given formula</u>

A = (θ / 360) πr²

<u>Substitute values into the formula</u>

A = (270 / 360) π (7)²

<u>Simplify exponents</u>

A = (270 / 360) π 49

<u>Simplify by multiplication</u>

A = (147 / 4) π

A = 147π / 4

Hope this helps!! :)

Please let me know if you have any questions

4 0
3 years ago
Lex is at the mall, which is 8 miles from his house. Lex walks home at a constant rate of 2 miles an hour.
egoroff_w [7]
Y = -2x + 8 <=== this would be ur equation where x is the number of hrs and y is the total distance (in miles) from home
6 0
3 years ago
At a student council meeting, there was a total of 60 students present. Of those students, 35 were female. By what percent is th
Makovka662 [10]
42%                                                               

------------------------------------------------------
7 0
3 years ago
Please help Explanation will be appreciated thanks,
Genrish500 [490]

Answer: A; 6.3%

Step-by-step explanation:

Problem 1

For the first problem, we first want to find y so that we can plug it into the expression.

We can use elimination method for the system of equations to solve.

3x+3y=21

3x-y=5

We subtract both equations to eliminate x.

4y=16                                        [divide both sides by 4]

y=4

Now that we know y, we can plug it into the expression.

\frac{4}{2} -3                                         [divide]

2-3                                         [subtract]

-1

We know that the answer is A.

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

Problem 2

For the second problem, we need to know how to calculate percent error. The formula for precent error is \frac{|measured-exact|}{exact} *100%. We know that the exact value is 80 because the buyer was supposed to given 80. 75 is the measured value because that was what the buyer was given.

\frac{|75-80|}{80} *100%                               [subtract]

\frac{|-5|}{80} *100%                                   [solve absolue value]

\frac{5}{80} *100%                                     [divide]

0.0625*100%                               [multiply]

6.25

Since the problem said to round to one decimal place, we know that the answer is 6.3%.

4 0
3 years ago
I just need to make sure my answer is correct :)
vampirchik [111]

Answer:

Its positive

Step-by-step explanation:

3x - 5 = -3

3x = 2

x = 2/3

2/3 is positive

5 0
3 years ago
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