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artcher [175]
3 years ago
14

16. Joe has 5 sports cards. He bought 3 packs with

Mathematics
1 answer:
faust18 [17]3 years ago
3 0

We can write an equation like; 5 + 3x = 35

Steps to solve:

5 - 5 + 3x = 35 - 5

3x = 30

3x/3 = 30/3

x = 10

There were 10 cards per pack.

Best of Luck!

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Identify the ordered pair and quadrant (or axis) for each point on the graph.
vladimir2022 [97]

Answer:

Top right: quadrant 1

Top left: quadrant 2

Bottom left: quadrant 3

Bottom right: quadrant 4

The first number of an ordered pair is the x axis, and the second is the y axis

A: 10,3 quadrant 4

B:8, 9 quadrant 2

c: 3,2 Q 3

D: 4,0 Q4

E:4,7 Q3

F: 8,7 Q1

G: 0,7 Q4

H: 1,5 Q1

8 0
2 years ago
.The diameter of a bike wheel is 27 inches. If the wheel makes 15 complete rotations, how far does the bike travel?
kobusy [5.1K]

Answer:

1271.7in

Step-by-step explanation:

A complete rotation is = circumference of the wheel.

So calculate the circumference which is pi times diameter.

27 times pi (which is 3.14) = 84.78in   one rotation

so if you make 15 rotations, you are multiplying it by 15

15 x 84.78 = 1271.7in

5 0
3 years ago
Sample of 3 items is selected at random from a box containing 20 items of which 4 aredefective. find the expected number of defe
azamat
That's 54 I think. 20x3=60-4=54
6 0
3 years ago
In how many ways can 100 identical chairs be distributed to five different classrooms if the two largest rooms together receive
Eva8 [605]

Answer:

There are 67626 ways of distributing the chairs.

Step-by-step explanation:

This is a combinatorial problem of balls and sticks. In order to represent a way of distributing n identical chairs to k classrooms we can align n balls and k-1 sticks. The first classroom will receive as many chairs as the amount of balls before the first stick. The second one will receive as many chairs as the amount of balls between the first and the second stick, the third classroom will receive the amount between the second and third stick and so on (if 2 sticks are one next to the other, then the respective classroom receives 0 chairs).

The total amount of ways to distribute n chairs to k classrooms as a result, is the total amount of ways to put k-1 sticks and n balls in a line. This can be represented by picking k-1 places for the sticks from n+k-1 places available; thus the cardinality will be the combinatorial number of n+k-1 with k-1, {n+k-1 \choose k-1} .

For the 2 largest classrooms we distribute n = 50 chairs. Here k = 2, thus the total amount of ways to distribute them is {50+2-1 \choose 2-1} = 51 .

For the 3 remaining classrooms (k=3) we need to distribute the remaining 50 chairs, here we have {50+3-1 \choose 3-1} = {52 \choose 2} = 1326 ways of making the distribution.

As a result, the total amount of possibilities for the chairs to be distributed is 51*1326 = 67626.

7 0
3 years ago
Which of the following expressions is equivalent to the radical expression?
qwelly [4]
The correct answer is B) m^{2/3}n^{5/3}. 

The denominator of the exponent is the root we are taking.  The numerator is the exponent of the radicand.  This means 3 will be the denominator, since it is a cubed root, and 2 will be the numerator of m while 5 will be the numerator of n.
4 0
3 years ago
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