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Degger [83]
4 years ago
11

Jacob spends 60 minutes in the gym every day doing freehand exercises and running on the treadmill. He runs on the

Mathematics
1 answer:
Alex4 years ago
7 0

Answer:

Part A. He exercised for 1.5 hours.

60 + 30 = 1.5 hours.

Part B. Jacob spends 15 minutes doing freehand exercise.

Part C. No, because he spent 1.5 hours altogether.

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2. A motorcycle rider moving with initial velocity of 15.0 m/s uniformly accelerates to a speed of 30.0 m/s in a.
xenn [34]

Given :

Initial velocity , u = 15 m/s .

Final velocity , v = 30 m/s .

Distance travelled , d = 40 m .

Also , this body is uniformly accelerating .

To Find :

(a) What is the acceleration .

(b) How long does this take .

Solution :

Let , acceleration be a .

By , equation of motion :

v^2-u^2=2ad\\\\a=\dfrac{v^2-u^2}{2d}\\\\a=\dfrac{30^2-15^2}{2\times 40}\\\\a=8.44\ m/s^2

Also , by equation :

v=u+at\\\\t=\dfrac{v-u}{a}\\\\t=\dfrac{30-15}{8.44}\ s\\\\t=1.78\ s

Hence , this is the required solution .

3 0
3 years ago
a trapezoid has an area of 20cm squared and a height of 5 cm. what is the sum of its top and bottom sides
bonufazy [111]
A=\frac{a+b}{2} h
A - area
h - height
a+b - sum of its top and bottom sides

20=\frac{a+b}{2} \cdot 5 \\
4 = \frac{a+b}{2} \\
a+b=8

The sum of its top and bottom sides is 8 cm.
6 0
3 years ago
If Michelle walked 5 meters, how many inches did she walk? A. 196.85 inches B. 16.4 inches C. .127 inches D. 12.7 inches
vagabundo [1.1K]
A. It takes 39.37 inches to make up 1 meter
5 0
4 years ago
Linh buys two-shirts for $12 each, a pair of shoes for $28, and a pair of jeans for $45. She has a coupon for 30 percent off her
s344n2d4d5 [400]

D. $67.90 would be your answer. Hope this helps and good luck darling!

5 0
3 years ago
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What number goes into 6 18 and 3​
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Answer:

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3 years ago
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