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3 years ago

Maria’s phone bills were 95 67 43 and 115 what is the mean or average of her phone bill

Mathematics

2 answers:

Vesna [10]3 years ago

5 0

Answer:

Step-by-step explanation:

You have to add all of the numbers together and divide them by how many numbers there are.

95 + 67 + 43 + 115 = 320

320 / 4 = 80

Scorpion4ik [409]3 years ago

5 0

Add all the amounts together and divide by the number of bills:

95+ 67+43+115 = 320

Average = 320 / 4 = 80

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Solve the solution for Y. 20 X+5Y=15

Marrrta [24]

20x + 5y = 15
-20x -20x

5y = -20x + 15
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y = -4x + 3

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3 years ago

WILL MARK BRAINLIEDT If the length of an arc of a circle of radius 7 is approximately 10.99 cm. What is the measure of the centr

Ostrovityanka [42]

The angle that defines the arc is 1.57 radians or 90°.

<h3 /><h3>How to get the angle of the arc?</h3>

For a circle of radius R, the length of an arc defined by an angle θ in radians is given by:

L = θ*R.

Here we know that the radius is R = 7cm, and the length of the arc is 10.99 cm. Replacing these in the above equation:

10.99 cm = θ*7cm

θ = (10.99 cm/7 cm) = 1.57

Then the angle is 1.57 radians. Remember that:

3.14 radians = 180°

Then:

θ = (1.57/3.14)*180° = 90°

If you want to learn more about arcs:

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1 year ago

a 12 foot piece of string is cut into two pieces so that the longer piece is 3 feet longer than twice the shorter piece. find th

aleksandr82 [10.1K]

Use the equation
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3 years ago

Stephen evaluated (6.34 times 10 Superscript negative 7 Baseline) (4.5 times 10 Superscript 3 Baseline). His work is shown below

Maksim231197 [3]

Answer:

The step 4 and 5 describe the errors Stephen made.

Step-by-step explanation:

Given : Stephen evaluated $(6.34\times 10^{-7})(4.5\times 10^3)$ . His work is shown below.

To find : Which two statements describe the errors Stephen made?

Solution :

Step 1 - $(6.34\times 10^{-7})(4.5\times 10^3)$

Step 2 - $(6.34\times 4.5)(10^{-7}\times 10^3)$

Step 3 - $(28.53)(10^{-4})$

Step 4 - $28.53\times 10^{4}$

Error is the step as 4 sign is negative.

So correct step is $28.53\times 10^{-4}$

Step 5 - $28.53\times 10^{3}$

Error is the step as there is 4 in place of 3.

So correct step is $28.53\times 10^{-4}$

The step 4 and 5 describe the errors Stephen made.

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3 years ago

Read 2 more answers

I need to find a expression equivalent to this with the same numbers <br><br> 2•((4•x•3)•6)

Kryger [21]

Answer:

144 * x

Step-by-step explanation:

2*4*x*3*6

2*4*3*6*x

8*3*6*x

24*6*x

144*x

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2 years ago