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3 years ago

14

a student answers 90% of the questions on a math exam correctly. if he answers 27 questions correctly how many questions are on

the exam?

1 answer:

kodGreya [7K]3 years ago

6 0

Answer:

30

Step-by-step explanation:

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This graph shows a proportional relationship.

Elodia [21]

Answer:

k = 12

Step-by-step explanation:

One pair of coordinates is sufficient to work out the constant of proportionality.

<u>Equation in general form:</u>

y = kx

and

Point (3, 36)

<u>Substitute x- and y- coordinates into equation and find the value of k:</u>

36 = k*3
k = 36/3
k = 12

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2 years ago

Explain or show how you could find by using the value of 5⋅3. If needed, use this diagram to support your reasoning.

Anika [276]

Answer:

Step-by-step explanation:

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3 years ago

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VladimirAG [237]

Add 8π to both sides

x-8π+8π=π+8π

x=π+8π

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3 years ago

How many times does 21 go into 217

wolverine [178]

10 1/3 times that is it

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3 years ago

Read 2 more answers

Solve 6^x+2 = 10 for x using the change of base formula

pashok25 [27]

Answer:

$x\approx-0.7149$

Step-by-step explanation:

$\displaystyle 6^{x+2}=10\\\\\log_6(6^{x+2})=\log_6(10)\\\\x+2=\frac{\log(10)}{\log(6)}\\\\x+2\approx1.2851\\\\x\approx-0.7149$

Recall that the change of base formula is $\displaystyle \log_a(b)=\frac{\log(b)}{\log(a)}$

3 0

1 year ago