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Svetllana [295]
3 years ago
5

Randy is deciding which cell phone plan is the best deal for him to buy. Super Cell charges a monthly fee of $15 and also charge

s $0.05 per call. Which equation represents the cost of service at Super Cell? (Use M as the monthly charge, in dollars, and C as the number of calls placed.)
A
M = .05 + 15C

B
M = .05C + 15

C
M = .05 + C + 15

D
M = .05C x 15
Mathematics
1 answer:
svp [43]3 years ago
7 0

Answer:

B

Step-by-step explanation:

Add the monthly fee $15 and the amount of times he called.

$15 + 0.05C = M

Hoped it helped you

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I need help with this, please!
Vera_Pavlovna [14]

Option D: x \geq 3 is the solution

Explanation:

The given expression is 3 x-1 \geq 8

We need to determine the solution of the expression.

<u>Solution:</u>

The solution of the expression can be determined by solving the expression for the variable x.

Thus, we have,

3 x-1 \geq 8

Adding both sides of the expression by 1, we get,

3x\geq 9

Dividing both sides of the expression by 3, we get,

x \geq 3

Thus, the solution of the expression is x \geq 3

Hence, Option D is the correct answer.

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3 years ago
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VARVARA [1.3K]
Vertex Q is 6 units from vertex R
Vertex R is 7 units from vertex T
Vertex T is 3 units from vertex S
7 0
3 years ago
Can you please explain how to do this so I can understand what to do for the other questions
tatyana61 [14]

Answer:

The circle length is 90*pi which should be 3.14

So the circle length is 282.6

The central angle is 90 degree which is 1/4 part of 360 degree

From the theory of arc, the arc length should also be 1/4 part of circle length.

So the answer should be 1/4 * 282.6 = 70.65

Becasue it should be to the nearest tenth, so the answer should be 70.7

Step-by-step explanation:

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3 years ago
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Anna71 [15]
The range is Max - Min = 299 - 0 = 299

Divide this range over 10 to get 299/10 = 29.9 which rounds to 30

We'll need about 30 intervals if we want intervals of width 10

Answer: D) 25 or more
5 0
3 years ago
Read 2 more answers
A cylinder has volume 78 cm3 . What is the volume of a cone with the same radius and height? A 26 cm3 B 39 cm3 C 156 cm3 D 234 c
otez555 [7]

Answer:

Option A - 26 \mathrm{cm}^{3}

Step-by-step explanation:

Given: The volume of a cylinder = 78 \mathrm{cm}^{3}

Let us substitute the volume of cylinder in the formula.

The formula for volume of a cone is V=\frac{\pi r^{2} h}{3}                    (1)

The formula for volume of a cylinder is V=\pi r^{2} h              (2)

Substituting V=78 in equation (2), we get,

\begin{array}{c}{V=\pi r^{2} h} \\{78=\pi r^{2} h}\end{array}

Given that the cone has the same radius and height of that of the cylinder, let us substitute 78=\pi r^{2} h in equation (1)

\begin{array}{l}{V=\frac{\pi r^{2} h}{3}} \\{V=\frac{78}{3}} \\{V=26}\end{array}

Thus, the volume of a cone with the same radius and height of a cylinder is 26 \mathrm{cm}^{3}.

3 0
3 years ago
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