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bagirrra123 [75]
3 years ago
11

On a certain airline, passengers can make calls from telephones provided ny the airline. A call cost $3 to connect plus $2.50 fo

r each minute. Which equation best represents c, the total cost for a call that lasts m minutes?
m=2.5+3m

m=3+2.5c

c=3+2.5m

c=2.5+3m
Mathematics
2 answers:
sasho [114]3 years ago
8 0
Answer:

C=3+2.5m

Explanation:
Finger [1]3 years ago
5 0

Answer: The answer is D

Hope this helps

Step-by-step explanation:

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This is for SSS Criterion <br> x-y=x+3
ki77a [65]
Y=(-3) include parentheses

Explanation:
y=mx+b is the slope intercept form of a line where b and y is the intercept so,

x-y=x+3: y= -3

7 0
3 years ago
Yumi and Juan pick up litter along the highway at the same rate. Yumi picks up litter for 3 miles and takes two hours longer tha
oksano4ka [1.4K]
Juan's time = x
Yumi's time = x + 2
Yumi's distance = 3 miles
Juan's distance = 2 miles
Rate = distance/time
Juan's rate = 2/x
Yumi's rate = 3/(x + 2)
The rates are equal so:
2/x = 3/(x + 2)
2x + 4 = 3x
x = 4 hours
Yumi's time = 4 + 2 = 6 hours
The answer is D.
3 0
3 years ago
Read 2 more answers
Trigonometry: If f(x)= 2sinx + cosx using exact values find f (120 degrees). if possible show steps.
Arada [10]

Answer: f(120°) = (√3) + 1/2

Step-by-step explanation:

i will solve it with notable relations, because using a calculator is cutting steps.

f(120°) = 2*sin(120°) + cos(120°)

           =2*sin(90° + 30°) + cos(90° + 30°)

here we can use the relations

cos(a + b) = cos(a)*cos(b) - sin(a)*sin(b)

sin(a + b) = cos(a)*sin(b) + cos(b)*sin(a)

then we have

f(120°) = 2*( cos(90°)*sin(30°) + cos(30°)*sin(90°)) +  cos(90°)*cos(30°) - sin(90°)*sin(30°)

and

cos(90°) = 0

sin(90°) = 1

cos(30°) = (√3)/2

sin(30°) = 1/2

We replace those values in the equation and get:

f(120°) = 2*( 0 +  (√3)/2) + 0 +  1/2 = (√3) + 1/2

3 0
3 years ago
number of bald eagles in a country a discrete random​ variable, a continuous random​ variable, or not a random​ variable?
kykrilka [37]

Answer:

Discrete random variable.

Step-by-step explanation:

Discrete variable:

Countable numbers(0,1,2,3,...)

Continuous variable:

Can assume decimal values, such as 0.5, 2.5,...

Number of bald eagles:

Number of bald eagles is a countable value, either there a 0, 100, 1000,... so it is a discrete random variable.

7 0
3 years ago
CUCI P
Free_Kalibri [48]

Answer:

$62.42

Step-by-step explanation:

1st step: Simplify the numbers first

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$12.99 ---------> 13

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cents from simplified version: 42 cents are added to the final number

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Total Cost: The four athletic items will cost $62.42 in total.

Hope this helps!!!

6 0
3 years ago
Read 2 more answers
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