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sergejj [24]
2 years ago
7

a professional baseball game of lacrosse has 60 mintues of playing time.It is spit into 4 equal period of time.How many mintues

are in each period?Explain
Mathematics
2 answers:
Anettt [7]2 years ago
6 0
15 minutes in each period, b/c 60/4 = 15.
Alja [10]2 years ago
6 0
It is 15 minutes because 15 times 4 equals 60
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A child lets go of a balloon that rises at a constant rate. 5 seconds after it was released, the balloon is at a height of 16 fe
Mama L [17]

Answer:

1. h = 2.4t + 4

2. 4 feet

3. 220 feet

Step-by-step explanation:

1. Write a linear model for the height, h, of the balloon as a function of the number of seconds, s that it has been raising.

Since the balloon rises at a constant rate, we find this rate by using the initial and final values of height and time at 5 seconds and 20 seconds respectively which are 12 feet and 52 feet respectively.

So, rate = gradient of line

= change in height/change  in time

= (52 ft - 16 ft)/(20 s - 5 s)

= 36 ft/15 s

= 2.4 ft/s

Now the equation of the line which shows the height is gotten from

(h - h')/(t - t') = rate

Using h'= 16 feet and t' = 5 s, we have

(h - 16)/(t - 5) = 2.4

h - 16 = 2.4(t - 5)

h - 16 = 2.4t - 12

h = 2.4t - 12 + 16

h = 2.4t + 4

where h is the height of the balloon above the ground and t is the time spent in the air in seconds.

2. What was the height of the balloon initially before the child let it go?

We obtain the initial height of the balloon before the child let go at time, t = 0 the time before the child let go.

So, substituting t = 0 into the equation for h, we have

h = 2.4t + 4

h = 2.4(0) + 4

h = 0 + 4

h = 4 feet

So, the height of the balloon before the child let go is 4 feet above the ground.

3. Use your model to predict the height of the balloon after 90 seconds.

We insert t = 90 s into the equation for h. So,

h = 2.4t + 4

h = 2.4(90) + 4

h = 216 + 4

h = 220 feet

So, the height of the balloon after 90 s is 220 feet above the ground.

8 0
2 years ago
The measures of the angles of a triangle are shown in the figure below. Solve for x.
MissTica

Answer: X= 25 degrees

Step-by-step explanation:

A triangle is 180 degrees.

115+40=165

180-165=25 degrees

6 0
2 years ago
kayla and Jane helped Mr.John fit kids in the auditorium. There was 603 kids,and each row can fit 31 kids. How many rows do they
olga2289 [7]

Answer:

Around 19 rows

Step-by-step explanation:603/31= 19.40 so I'm not too sure

4 0
2 years ago
Hugo is the chef of a school cafeteria.
Licemer1 [7]

Answer: No

Step-by-step explanation:

I guessed..but it was right

7 0
2 years ago
Read 2 more answers
2/13 = 0.153846 In the decimal above, 1 is the first digit in the repeating pattern. What is the 279th digit?​
svetoff [14.1K]

Answer:

F

Step-by-step explanation:

There are 6 digits in the repeating pattern.

279 / 6 = 46.5 remainder 3.

we care about the remainder as this is how many digits in. it is the 3rd digit in so is 3.

6 0
10 months ago
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