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tester [92]
3 years ago
12

What is the value when 2x+3y and x=5 y=2

Mathematics
1 answer:
sukhopar [10]3 years ago
6 0

Answer: 16

Step-by-step explanation: We start by substituting the appropriate numbers in for our variables using parentheses as we go.

So we have 2(5) + 3(2).

Since the order of operations tells us that multiplication comes before addition, we first multiply 2(5) to get 10 and 3(2) to get 6.

Then we add 10 + 6 to get 16.

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ruslelena [56]

Answer:

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Step-by-step explanation:

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3 years ago
Barry Road his scooter<br> for 24 minutes at a speed of 0.5 per minute how far did he go
liraira [26]
Well, I'm not sure what units "0.5" apply to, but to find the distance he rode, you will need to multiply.

0.5 * 24 = 12.

Barry rode his scooter for a distance of 12 [insert units here].

Hope this helps! Have a great day :)
7 0
3 years ago
Luke's pencil case measure 1.5 inches by 4 inches by 6 inches. How many pencils can he fit in his pencil case if each pencil has
Bumek [7]

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4 0
2 years ago
Read 2 more answers
What is the value of d?<br><br><br>Round your answer to the nearest tenth.
Sergeeva-Olga [200]

Answer:

11.9 mm

Step-by-step explanation:

We can find d by applying the cosine rules.

d²  = 21² + 27² - 2(21)(27) cos (25)

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d²  = 142.25

d = √142.25

d = 11.9 mm (nearest tenth)

5 0
3 years ago
Identify as a direct variation, inverse variation or neither. The number of tons of coal burned by an old coal burning locomotiv
pochemuha
Answer: it is a direct variation.

Justification:

In a direct variation the variables are related by a proportionality constant in this way:

y = k x

Tthan means that the value of y is always the product of a constant times the value of x.

The situation discribed for the coal may be written as:
number of tons of coal burned: c

number of hours: h

⇒ c = k × h

Which is that you can calcualte the number of tons of coal burned at any time, once you know the proportionality constant k.




5 0
3 years ago
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