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Alisiya [41]
3 years ago
12

The ratios in an equivalent ratio table are 3:12, 4:16, and 5:20. If the first number in the ratio is 10, what is the second num

ber?​
Mathematics
1 answer:
pashok25 [27]3 years ago
3 0

Answer:

The second number is 40

Step-by-Step:

There is a pattern in the ratio table: you need to multiply the first number by 4, and the answer is the second number. So if the first number is 10, you will need to multiply that by 4 to get the second number. So the second number is 40

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A student repeats the process of taking blocks out of a bag and replacing them 100 times. A green block is drawn 67 times. What
Alexeev081 [22]

Using it's concept, it is found that a good estimate for the probability of drawing out a green block from the bag is of 0.67 = 67%.

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

In this problem, to get a good estimate, we get the probability taking the outcomes from the sample, that is, 67 green blocks out of 100 blocks, hence:

p = 67/100 = 0.67.

A good estimate for the probability of drawing out a green block from the bag is of 0.67 = 67%.

More can be learned about probabilities at brainly.com/question/14398287

5 0
2 years ago
Help asap!! (i’ll give u brainliest)
Gnesinka [82]

Answer: 3

Step-by-step explanation:

6 0
3 years ago
If x = 45, solve for y
Tanzania [10]

Answer:

d

Step-by-step explanation:

5 0
3 years ago
Use f(x) = 1 2 x and f -1(x) = 2x to solve the problems.
AVprozaik [17]

Answer:

The answer to your question is below

Step-by-step explanation:

Functions

  f(x) = 12x           f⁻¹(x) = 2x

a)   f⁻¹(-2) = 2(-2)

     f⁻¹(-2) = -4

b) f(-4) = 12x

    f(-4) = 12(-4)

    f(-4) = -48

c) f(f⁻¹(-2)) =

   f(f⁻¹(x)) = 12(2x) = 24x

  f(f⁻¹(-2)) = 24(-2) = -48            

I think your functions are wrong they must be       f(x) = 1/2x    f⁻¹(x) = 2x        

a)  f⁻¹(-2) = 2(-2)

             = -4

b) f(-4) = 1/2(-4)

         = -2

c) f(f⁻¹(x)) = 1/2(2x)

              = x

  f(f⁻¹(-2)) = -2

4 0
3 years ago
Hi can anyone help me with these 3 questions would really appreciate it thanks
Virty [35]

Answer:

1) 8

Step-by-step explanation:

3+2 is 5

4^2 is 16

16×5=80

2×5=10

80÷10=8

7 0
3 years ago
Read 2 more answers
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