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3 years ago

9

Rick charges $50 plus $40 an hour to fix cars. Let x be the number of hours that he works and y be the overall cost that he char

ges. Write the equation

1 answer:

Serjik [45]3 years ago

5 0

Y= 40x+ 50 (i need 20 characters to post this so ignore)

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What is the probability of each of the three outcomes in a trial: two heads, one head and one tail, and two tails? why is one of

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The "one head and one tail" would be my best guess because you get one of each outcome, whereas the other two outcomes are two of the same outcome.

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3 years ago

A box contains 10 green marbles and 11 white marbles. If the first marble chosen was a green marble, what is the probability of

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Answer:

11/20

Step-by-step explanation:

At the beginning, the number of marbles in the box are:

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11 white marbles

The first marble chosen is green, and then it is not replaced in the box. Therefore, the number of green marbles left in the box is 9.

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3 years ago

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Step-by-step explanation:

divide 10/8

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Out of a total of 2,000 boxes, 40% were red. 50% of the red boxes were sold. a. How many red boxes were sold? Answer: _____ b. H

Natalija [7]

Answer:

400 red boxes were sold

Step-by-step explanation:

Step 1: Our output value is 2000.

Step 2: We represent the unknown value with x.

Step 3: From step 1 above,2000=100%.

Step 4: Similarly, x=40%.

Step 5: This results in a pair of simple equations:

2000=100%

x=40%(2)

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

2000/x = 100%/40%

Step 7: Again, the reciprocal of both sides gives

x/2000 = 40%/100%

x=800

Therefore, 40% of 2000 is 800

and to find 50% just divide by 2

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3 years ago