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S_A_V [24]
2 years ago
5

I need help with this question.

Mathematics
1 answer:
Papessa [141]2 years ago
5 0

Answer:

It's A, c =2.5d

Step-by-step explanation:

When it comes to problems like this, I usually look through the answers and try to plug in the numbers until I get the right equation that fits with the graph.

2.5(5) = 12.5

2.5(10)= 25

2.5(15)= 37.5

2.5(20) = 50

2.5(25) = 62.5

If you compare this to the graph, you'll notice the solutions are the same as the Total Cost (c). That's because c= 2.5d is the right equation for this graph. (Sorry if my explanation is confusing)

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6-x=9 how do you find x
podryga [215]

Answer:

15

Step-by-step explanation:

1- 6-x=9 Place the terms on the correct side; always place terms with x on the left hand side and the others on the right hand side. (when placing on the other side convert from + to - or reversed) (the 6- converted to 6+)

2- x= 6+9= 15 Now work out the sum.

3- x= 15

6 0
3 years ago
Samantha sends her son, Barry, to a preschool center on certain days. The cost of preschool is $45 per day along with a fixed mo
Travka [436]

Answer: Option D

D. 880 = 45d + 70; 18\ days

Step-by-step explanation:

We know that the cost of preschool is $ 45 per day plus a monthly fee of $ 70.

We also know that a total of $ 880 was paid last month

To write an equation that represents this situation, let us call "d" the number of days that Barry attends school

So the cost was:

45d + 70 = 880

Now we solve the equation for the variable d

45d= 880-70

d= \frac{810}{45}

d= 18\ days

Therefore answer is the option D

8 0
3 years ago
if you drive an average of 1,400 miles per month and spend an average of 60$ per month for automobile maintenance and repair. Wh
meriva

Answer:It will be $ 8,469

Step-by-step explanation:

6 0
2 years ago
The final grade in a biology course is determined by a score from 0 to 100, which has three components; a laboratory component o
vovangra [49]

Answer:

75*25%+(38+40)*50%+85*25%=59.5

Step-by-step explanation:

7 0
2 years ago
"Cheetahs are the fastest mammals in the world. The can reach speeds of 70 miles per hour. At this speed, how long would it take
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Divide each side by 70
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