3 years ago

Question 2 of 10

Mathematics

2 answers:

IrinaK [193]3 years ago

7 0

I don’t think it’s d

butalik [34]3 years ago

7 0

Answer:

C. 7

Step-by-step explanation:

took quiz on ap ex it was correct

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Fill in the blanks. Then, choose the property of addition you used.

liubo4ka [24]

Answer:

_7 + 3 = 3 + 7 : commutative property,[if something is added or subtracted]

0 +5 _ = 5 is it: identity property.[if 0 is added or subtracted]

2 + (6 + 8) =(2 + 6)+ _8 associated property

[if added or multiplied]

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3 years ago

Derek flips a coin and rolls a number cube at the same time. Derek rolls an even number. Find the probability that the coin came

Andreas93 [3]

Coin: 50%; 1/2 chance to get heads
dice: 17%; 1/6 chance to get 2

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3 years ago

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Is my answer correct

kondor19780726 [428]

Answer:

Yes, you are correct.

Step-by-step explanation:

$\text{Let the number of puzzle solved by Child B is} x\text{.}$

$\text{Then the average number of puzzle solved is}$

$\frac{5x+x+(x+4)}{3}=13$

$\frac{7x+4}{3}=13$

$7x+4=39$

$7x=35$

$x=5$

$\text{Therefore, the number of puzzles solved by child A is }5x=5\cdot5=25$

$\color{blue}\text{A little tips here: You can check it by substituting your answer to the original equation.}$

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3 years ago

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Determine how many solutions exist for this system of equations:

IrinaK [193]

Answer:

No Solution

Step-by-step explanation:

-3x+6=-3x-5

+5 +5

-3x+11=-3x

+3 +3

11=0

No Solution

4 0

3 years ago

Suppose you accumulated $500,000, perhaps from many years of saving. You put the money in a savings plan earning 6% compounded m

nata0808 [166]

The monthly interest rate is 6%/12 = 0.5%. The interest earned each month is
0.005*$500,000 = $2500

You can withdraw $2500 each month without disturbing the principal amount.

3 0

3 years ago