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4 years ago

1. John had 30 baseball cards. He gave 14 cards to mike and 7 to Jeff. How many baseball cards does John have left?

Mathematics

2 answers:

RoseWind [281]4 years ago

8 0

I tried lol 9, 136, 29:36

Eduardwww [97]4 years ago

4 0

1. 9. 2. 137. 3 where is the table

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If one angle in 130 and the other angle is (3x+5) what is the value of x

Sedbober [7]

Well, it will be forming Linear Pair. So,

130+3x+5 = 180

3x = 45

x = 15

4 0

3 years ago

Kiras dog gets 38.6 grams of protein in each email how much protein does the dog get in 4 meals

USPshnik [31]

Answer:

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3 years ago

Subtract 7x2+4x-9 from 5x2+10x-5

swat32

Answer:

2x^2-6x-4

Step-by-step explanation:

(7x2 + 4x - 9)

-(5x2 + 10x - 5)

7x^2-5x^2=2x^2

4x-10x=-6x

-9-(-5)=-4

thus, your answer is 2x^2-6x-4

5 0

3 years ago

Read 2 more answers

Let B1W2 denote the outcome that the first ball drawn is B1 and the second ball drawn is W2. Because the first ball is replaced

Sati [7]

Answer:

$\{B_1B_1, B_1B_2, B_1W_1, B_1W_2, B_1W_3, \\B_2B_1, B_2B_2, B_2W_1, B_2W_2, B_2W_3, \\$

$W_1B_1,W_1B_2, W_1W_1, W_1W_2, W_1W_3, \\W_2B_1, W_2B_2, W_2W_1,W_2W_2, W_2W_3, \\W_3B_1, W_3B_2, W_3W_1, W_3W_2, W_3W_3\}$

Step-by-step explanation:

$\text{If an urn contains two blue balls} (denoted \:B_1 \:and \:B_2) \text{and three white balls}$ , $(denoted \:W_1, W_2, \:and\: W_3)$

If One ball is drawn, its color is recorded, and it is replaced in the urn. Then another ball is drawn and its color is recorded.

The 25 Possible outcomes of this experiment are listed below:

$\{B_1B_1, B_1B_2, B_1W_1, B_1W_2, B_1W_3, \\B_2B_1, B_2B_2, B_2W_1, B_2W_2, B_2W_3, \\$

$W_1B_1,W_1B_2, W_1W_1, W_1W_2, W_1W_3, \\W_2B_1, W_2B_2, W_2W_1,W_2W_2, W_2W_3, \\W_3B_1, W_3B_2, W_3W_1, W_3W_2, W_3W_3\}$

The tree diagram of this event is also attached.

6 0

4 years ago

What is the property that justifies the illustrated step in solving the equation?

andrew11 [14]

Commutative property of addition is being used.

This means that you can switch around where the numbers are and still get the same answer.

Hope this helps!

7 0

3 years ago