Ask question

Ask question

All categories

3 years ago

5

Ariel joined a biking club . She paid $74.51 for a bike tune-up, 54.95 for a helmet, and 32.49 each for 3 bike tours. Write an e

quation and solve it to show the total.helpp!!!

1 answer:

jolli1 [7]3 years ago

5 0

74.51+54.95+3(32.49)=?

You might be interested in

If profit is p% and cost price is C.P what will be the selling price?

harkovskaia [24]

Answer:

SP = (1+P/100)CP.

Step-by-step explanation:

P% is our profit on our cost price.

Cp is our cost price.

We know,

Selling Price - Cost price = Profit = Profit * Cost Price

So,

SP = (1+P/100)CP.

7 0

2 years ago

A sprinter who weighs 706 N runs the first 5.5 m of a race in 1.6 s, starting from rest and accelerating uniformly. What are the

zhenek [66]

Answer:

(a) Speed = 6.875 m/s

(b) Kinetic Energy = 1.70 kJ

(c) Average power = 1.06 kW

Step-by-step explanation:

Given:

d = 5.5 m

t = 1.6 s

W = 706 N

Part (a)

Using the equation of motion with the assumption of zero initial speed:

$d = \frac{1}{2} ({v-0})t$

$5.5= \frac{1}{2} (1.6v)$

The speed of the sprinter then become:

$v = 6.875 m/s$

Part (b)

Convert the weight of the sprinter to mass:

$m = \frac{w}{g}$

$m = \frac{706}{9.8}$

$m = 72 kg$

KE (Kinetic Energy) can then be calculated as:

$KE = \frac{1}{2} mv^{2}$

$KE = \frac{1}{2} (72)(6.875)^{2}$

$KE = 1701.56 J = 1.70 kJ$

Part (c)

The change of the kinetic energy is equivalent to the work done by the sprinter. The average power P is the rate of the work done and can be calculated as

$P = \frac{KE}{t} \\\$

$P = \frac{1701.56}{1.6}$

$P = 1063.48 W = 1.06 kW$

5 0

3 years ago

For the first part of the obstacle course, Helena needs to sprint as fast as she can to Checkpoint A, which is 5 units north of

andrew11 [14]

Answer:

If the four number sentences at the bottom are the choices for your answer the correct one would be choice A or 1.

I hope this is what you meant if not I'll try to take my answer down and try to answer it again correctly!

5 0

2 years ago

Plz help!!!!!!!!!!!!!!!!

Goshia [24]

Answer:

b) 95

Step-by-step explanation:

equation:

3 x 30 + 5

solve:

3 x 30 + 5 = 95

3 0

2 years ago

Help will fine brainliest!!! The

mihalych1998 [28]

Hey there!

You can plug this into the slope equation to find the slope.

m= (y2-y1)/(x2-x1)

Plug in two points. I chose (0,4) and (1,7).

m= (7-4)/(1-0)

m= (3)/(1)

m= 3

3 is your answer.

I hope this helps!

~kaikers

6 0

3 years ago