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zaharov [31]
3 years ago
10

a wheel is made of a circular rim and 8 spokes as shown the length of each spoke is 37cm work out the total length of the rim an

d spokes
Mathematics
1 answer:
docker41 [41]3 years ago
6 0

Answer:

Total length of the rim = 232.36 cm (Approx.)

Total length of the rim and spokes = 296 cm (Approx.)

Step-by-step explanation:

Given:

Number of spokes = 8

Length of spokes = 37 cm

Radius of wheel = Length of spokes = 37 cm

Find:

Total length of the rim and spokes

Computation:

Total length of the rim = 2πr

Total length of the rim = 2(3.14)(37)

Total length of the rim = 232.36 cm (Approx.)

Total length of spokes = 8 x 37

Total length of the rim and spokes = 296 cm (Approx.)

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Volunteers at Sam's school use some of the student council's savings for a special project. They buy 8 backpacks for $9 each and
Novay_Z [31]


8 x $9 = $72.00

8 x $3 = $24.00

$72.00 + $24.00 = $96.00

savings changed by $96.00

3 0
3 years ago
Write the equation of the line that is parallel to y=1/4x+5 and passes through (2,-9)
Tamiku [17]

Answer:

The answer is

<h2>y =  \frac{1}{4} x -  \frac{19}{2}</h2>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of the parallel line we must first find the slope of the original line

From the question the original line is

y=1/4x+5

Comparing with the general equation above

Slope = 1/4

Since the lines are parallel their slope are also the same

Slope of parallel line = 1/4

So the equation of the line using point

(2,-9) and slope 1/4 is

<h3>y + 9  =  \frac{1}{4} (x - 2) \\ y + 9 =  \frac{1}{4} x -  \frac{1}{2}  \\ y =  \frac{1}{4} x -  \frac{1}{2}  - 9</h3>

We have the final answer as

<h3>y =  \frac{1}{4} x -  \frac{19}{2}</h3>

Hope this helps you

8 0
3 years ago
Please Explain/Show your work!
Zigmanuir [339]

Answer:

They are both proportional.

Tank A = .00375 minutes/gallon

Tank B = 2/600 or ~0.003 minutes/gallon

Step-by-step explanation:

They are both proportional because as time increases, the amount of gallons increases.

Tank A unit rate

Tank B unit rate

Rate = rise / run

Choose points on the graph that has definite points.

Tank A = (1.5 mins - 0.75 mins) / 200 gallons

Tank A = .00375 minutes/gallon

Tank B = (2 mins - 0 mins) / 600 gallons

Tank B = 2/600 or .003 minutes/gallon

3 0
3 years ago
PLEASE HELP ME ASAP ITS DUE AT MIDNIGHT AND I DONT HAVE A LOT OF TIME
Ne4ueva [31]

Answer:

C

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
I just need help with this
Alexxx [7]

Answer:

z = 4.5

Step-by-step explanation:

∠B = ∠B      ∠BAD = 90° - ∠B = ∠C

ΔBAD ~ ΔBCA

AB / z = BD / AB

z = AB * AB / BD = 3*3 / 2 = 4.5

3 0
2 years ago
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