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Mkey [24]
3 years ago
11

This equation shows how the cost of a plumber's visit is related to its duration in hours. c = 24.9d + 11.4 The variable d repre

sents the duration of the visit in hours, and the variable c represents the cost. What is the duration, in hours, of a plumber's visit that costs $31.32?
Mathematics
1 answer:
kozerog [31]3 years ago
8 0
The correct answer would be 8/10 of an hour or 48 minutes.

To solve this, you would plug in the 31.32 into the cost. You would then subtract 11.4 from both sides to isolate the d term. You would then be left with 19.92=24.9d. You would then divide both sides by 24.9, to solve for the d term, and you would get d=.8
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Find the volume make it an improper fraction then a mixed number please do a step by step explanation and I will give you brainl
Andrews [41]

Answer:

8463/32=264 15/32

Step-by-step explanation:

Let's make every fraction improper first.

7 3/4=31/4

5 2/8=42/8

6 1/2=13/2

Simplify 42/8

42/8=21/4

21/4

31/4

13/2=26/4

21/14*31/4*26/4=(21*31*26)/64=16926/64=8463/32

3 0
2 years ago
If tn = 4n+1, find t1, t2, t3, and tn+1. Express tn+1−tn in its simplest form.
Doss [256]

Answer:

t_1=5

t_2=9

t_3=13

t_{n+1}-t_n=4

Step-by-step explanation:

We have that:

t_n=4n+1

When we substitute n=1, we get:

t_1=4*1+1=5

When we substitute n=2 we get:

t_2=4*2+1=9

When we substitute n=3, we get:

t_3=4*3+1=13

When we substitute n=n+1, we get:

t_{n+1}=4*(n+1)+1=4n+5

Now

t_{n+1}-t_n=4n+5-(4n+1)

We expand and simplify to obtain:

t_{n+1}-t_n=4n+5-4n-1

t_{n+1}-t_n=4

3 0
3 years ago
Sophie found the volume of the figure below by using the steps shown.
Westkost [7]

Answer: it's C Sophie used the wrong height for the pyramid

It's Right cause I took the test.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the probability that both of Eduardo's partners for the group project will be girls? StartFraction 9 Over 65 EndFraction
tester [92]

Answer:

StartFraction 24 Over 65 EndFraction

Step-by-step explanation:

Total number of students = 26

Number of boys = 10

Number of girls = 26-10

=16

Eduardo has to pull two names out of the hat without replacing them.

First name

Probability= Favourable outcome/Total outcome

Probability of girls=16

Total probability=26

Eduardo has to pull two names out of the hat without replacing them.

Probability= Favourable outcome/Total outcome

=16/26

=8/13

For the second name:

Without replacement of the first hat

Probability of girls=16-1=15

Total probability=26-1=25

Probability= Favourable outcome/Total outcome

=15/25

=3/5

Probability of both of Eduardo's partner for the group project will be girls=8/13*3/5

=24/65

StartFraction 24 Over 65 EndFraction

4 0
3 years ago
What is the appropriate sequence of events for protein synthesis?
Alborosie

The correct sequence of events in protein synthesis is transcription, then translation.

7 0
2 years ago
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