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Nataly [62]
3 years ago
9

When Carrie mows a lawn, she charges a flat fee of $5 plus an hourly rate, r. Carrie worked 2 hours at her last job. The equatio

n 2r+5=20 represents, in dollars, what Carrie charged. What is Carrie’s hourly rate?
Mathematics
1 answer:
Dmitrij [34]3 years ago
3 0

Answer:

$7.50

Step-by-step explanation:

You use inverse operations to evaluate the equation. You subtract 5 from 20, which is 15. Then you divide 15 by 2, which is 7.5.

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from a class containing 12 girls and 10 boys , students are to be selected to serve on a school advisory panel.
olya-2409 [2.1K]
What is your question?
7 0
3 years ago
The coach recorded the time it took 15 students to run a mile. The times are as follows: 9:23, 8:15, 9:23, 9:01, 6:45, 6:55, 7:2
r-ruslan [8.4K]

Answer:

Therefore, the four intervals are

(1)    6 - 6.59

(2)   7 - 7.59      

(3)    8 - 8.59      

(4)    9 - 9.59

The four frequencies are

(1)   4

(2)   3

(3)   1    

(4)  6

Step-by-step explanation:

From the data, we have

                     Interval                                                       Frequency

1st                 6 - 6.59                                                        4

2nd               7 - 7.59                                                        3

3rd                8 - 8.59                                                        1

4th                 9 - 9.59                                                       6

Therefore, the four intervals are

(1)    6 - 6.59

(2)   7 - 7.59      

(3)    8 - 8.59      

(4)    9 - 9.59

The four frequencies are

(1)   4

(2)   3

(3)   1    

(4)  6

5 0
3 years ago
a store sells mugs each mug costs the same amount during a sale the store reduces the price of each mug by 1.25 jackson spends 1
seropon [69]

Answer: the Answer is $14.73

Step-by-step explanation: that how you sell a mug

5 0
3 years ago
20 POINTS ANSWER ASAP SHOW ALL WORK
nadezda [96]

Answer: 12,8 approximately 13 cones

Step-by-step explanation:

1] volume of a cone

V=1/3πr^2h

V=1/3π(3)^2(5)

V=47,12 cubic inches

2] volume of a cylinder

V=πr^2h

V=π(8)^2(3)

V=603.19

Now devide the volume of a cylinder by the volume of a cone

603,19÷47,12=12,8 cones

3 0
3 years ago
Can a scalene triangle have two congruent angles why or why not
OLEGan [10]
No, because a scalene triangle is a triangle with all different sides so if there was a congruent anything it would not be a scalene triangle.
 I hope this helped. :)
4 0
3 years ago
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