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OLEGan [10]
3 years ago
12

How do you solve 7x-5x+2x+23

Mathematics
1 answer:
Ratling [72]3 years ago
6 0

Answer:

4x + 23

Step-by-step explanation:

7x - 5x + 2x + 23

= 4x + 23

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you are riding a bicycle which has tires with a 25-inch diameter at a steady 15-miles per hour, what is the angular velocity of
motikmotik

Answer:

The angular velocity is 6.72 π radians per second

Step-by-step explanation:

The formula of the angular velocity is ω = \frac{v}{r} , where v is the linear velocity and r is the radius of the circle

The unit of the angular velocity is radians per second

∵ The diameter of the tire is 25 inches

∵ The linear velocity is 15 miles per hour

- We must change the mile to inch and the hour to seconds

∵ 1 mile = 63360 inches

∵ 1 hour = 3600 second

∴ 15 miles/hour = 15 ×  \frac{63360}{3600}

∴ 15 miles/hour = 264 inches per second

Now let us find the angular velocity

∵ ω = \frac{v}{r}

∵ v = 264 in./sec.

∵ d = 25 in.

- The radius is one-half the diameter

∴ r = \frac{1}{2} × 25 = 12.5 in.

- Substitute the values of v and r in the formula above to find ω

∴ ω = \frac{264}{12.5}

∴ ω =  21.12 rad./sec.

- Divide it by π to give the answer in terms of π

∴ ω = 6.72 π radians per second

The angular velocity is 6.72 π radians per second

3 0
3 years ago
Sue buys 8.5 pounds of chicken to make tacos. She uses 0.3 pound of chicken for each taco. How many tacos can Sue make?
gizmo_the_mogwai [7]
Divide 8.5 by .3 and get 28.3333. She can't make tacos with the extra .3 pounds so the answer is 28 tacos
4 0
3 years ago
Which statement best describes f(6) = 12?
shutvik [7]

Answer:

You did not include any statements?

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Mr. Hawkins is covering a wall with
Jet001 [13]

14 x 12 = 168

168 divded by 2.90 = 57.9

6 0
3 years ago
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What is the result of subtracting the second equation from the first?<br> -4x-2y=-2<br> x-2y=9
TEA [102]

Answer:

x = 11/5 or 2 1/5

Step-by-step explanation:

propagate the negative through the bottom equation

-5x = -11

x = 11/5

3 0
3 years ago
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