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katrin [286]
3 years ago
15

Write a first step question and answer. Then solve the problem. Jerome bought 8 packs of baseball cards at a garage sale. Each p

ack has 10 cards. He gave his younger sister 3 cards from each pack. How many cards does Jerome have left?
Mathematics
1 answer:
tia_tia [17]3 years ago
7 0

Answer: Jerome has left 56 cards.

Explanation:

Since we have given that

Number of packs of baseball cards at a garage sale = 8

Number of cards in each pack = 10

Total number of cards in all is given by

8\times 10=80

Now,

He gave his younger sister 3 cards from each pack ,

So,

Number of cards he gave to his younger sister from each pack = 3

Number of packs were there = 8

So,

Total number of cards he has given to his younger sister is given by

3\times 8=24

So, number of cards left to Jerome is given by

80-24=56

So, there are 56 cards Jerome left with .

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Step-by-step explanation:

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3 years ago
Which system of inequalities is shown in the graph?
Illusion [34]

Answer: Choice A

==========================================================

Explanation:

One shaded region is below the parabola, and the other shaded region is below the line. They both overlap outside the parabola, but under the straight line.

Since both shaded regions are below their respective boundaries, this means that we'll be using "less than" signs for each inequality. The solid boundary lines indicate "or equal to" is part of that as well.

Because of this, the answer is between A and D since both involve inequality signs that have "less than or equal to".

However, we can rule out choice D since the inequality y \le x+3 would have the boundary line y = x+3, and this boundary line has a positive slope. But notice how the red diagonal line slopes downward as we read from left to right. Therefore, the red line must have a negative slope. Luckily, choice A has one of the boundary lines as y = -x+3 to fit the description. So that's why choice A is the answer.

5 0
3 years ago
2x+3y = 15<br> x-3y=3<br> Solve
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By process of elimination. 3y and -3y get eliminated. Giving you

3x=18

Divide by 3 on each side

Giving you x=6

Plugging it into equation 2 you get

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Taking out the parenthesis you have

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Subtract by 6 on each side giving you

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6 0
3 years ago
What is the length of CD? in this diagram ABC ~ EDC
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Answer & Step-by-step explanation:

These triangles are similar. This means that they are going to have the same ratios within their different sides.

AC and CE already have measurements so we are going to find the ratio between them. We can do this by dividing 21 by 7.

21 / 7 = 3

So, since the ratio between AC and CE is 3, then the rest of the triangle has a ratio of 3 with the other triangle.

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Add 7x to both sides of the equation.

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Divide 28 from 140.

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Now that we have the value of x, then we can find the measurement of CD.

The measurement of CD is 5.

3 0
3 years ago
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