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puteri [66]
3 years ago
10

What is the 21st term of the sequence with a1 = -7 and d = 3?

Mathematics
1 answer:
STatiana [176]3 years ago
3 0

Answer:

53

Step-by-step explanation:

a + (n - 1)d   \\  =  - 7 + (21 - 1)3 \\  = 53

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A repair company’s charge for repairing a certain type of copy machine fits the model y = 47.38 + 0.617x where y is the number o
Tems11 [23]

Answer: 36.66min

Step-by-step explanation:

y = 47.38 + 0.617x

where y is the number of dollars

x is the number of minutes on the job

Given a value of y = $70, then

We substitute y = $70 in the equation.

70 = 47.38 + 0.617x

22.62 = 0.617x

X = 22.62/0.617 = 36.66min

6 0
3 years ago
$250 is invested in the bank that pays 7% simple interest. Calculate the amount of money in the account after 1 year
victus00 [196]
250*1.07=267.5
=267.50
4 0
3 years ago
Read 2 more answers
Please help I will mark you as the brainliest for the best answer!
adelina 88 [10]
-6, -7, -8 degrees Celsius. I know these temperatures are colder because they are are a higher negative, and when measuring temperature the higher the negative the colder the temperature is.


Hopes that’s what you are looking for!
5 0
3 years ago
Please help, AND READ DIRECTIONS, get done as soon as possible.
katen-ka-za [31]

Answer:

IT would be 13a to 17b

Step-by-step explanation:

I had this.

7 0
2 years ago
Karl set out to Alaska on his truck.
tester [92]

Answer:

<u>The track consumes ≅ 61 liters of fuel every 100 kilometres</u>

Step-by-step explanation:

As we can see in the graph, the total distance that the truck can travel with 500 liters of fuel is ≅ 825 kilometres.

For answering the question properly, we use the Rule of Three Simple, this way:

Kilometres                Liters of fuel

825                              500

100                                 x

Solving for x, we have:

825 * x = 500 * 100

825x = 50,000

x = 50,000/825

x = 60.6 liters of fuel (61 rounding to the next whole)

x ≅ 61 liters of fuel

<u>The track consumes ≅ 61 liters of fuel every 100 kilometres</u>

6 0
3 years ago
Read 2 more answers
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