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3 years ago

THIS COSTS MY GRADE! PLEASE HELP ASAP!!

Mathematics

1 answer:

bulgar [2K]3 years ago

5 0

Answer:

14 months.

Step-by-step explanation:

3,450 - 8,650 = 5,200 divided by 350 = 14 months or 14.8 months if the answer requires a decimal.

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The probability of a certain brand of battery going dead within 15 hours is. Noah has atoy that requires 4 of these batteries. H

Delicious77 [7]

Question:

The probability of a certain brand of battery going dead within 15 hours is 1/3. Noah has a toy that requires 4 of these batteries. He wants to estimate the probability that at least one battery will die before 15 hours are up.1.Noah will simulate the situation by putting marbles in a bag. Drawing one marble from the bag will represent the outcome of one of the batteries in the toy after 15 hours. Red marbles represent a battery that dies before 15 hours are up, and green marbles represent a battery that lasts longer.How many marbles of each color should he put in the bag? Explain your reasoning.

Answer:

The number of marbles of each color that should be present in the bag is;

1 red marble and 2 green marbles

Step-by-step explanation:

Here, we note that the probability of a battery going dead = 1/3 and the

Therefore if the red marbles represent that a battery dies before 15 hours then the probability of picking the red marble should be 1/3. That is if there is only one red marble in the bag, the probability of picking the red will be 1/3 when there are other 2 green batteries in the bag

That is there should be 1 red marble and 2 green marble in the bag.

4 0

3 years ago

What is -9(4f-6f)+(-15f) I need the answer ASAP

SIZIF [17.4K]

The answer is 3f
=18f+−15f=(18f+−15f)=3f

4 0

4 years ago

Read 2 more answers

Which of the following is not an integer? 36 0 -22 0.75

Marta_Voda [28]

Answer:

$\Huge \boxed{\mathrm{0.75}}$

Step-by-step explanation:

Integers are whole numbers.

Integers include all negative and positive whole numbers. Zero is also included as an integer.

36 is a positive whole number. 36 is an integer.

0 is a whole number. 0 is an integer.

-22 is a negative whole number. -22 is an integer.

0.75 is not a whole number. 0.75 is not an integer.

7 0

3 years ago

Mr. Yarmus purchased 3 cups of coffee for his friends. He paid $7.29 in yoyal, including and 8 percent sales tax. What was the c

Nonamiya [84]

Answer:

$2.25 price with per coffee without tax

Step-by-step explanation:

3 cups of coffee = $7.29 (with tax)

tax = 8% = 8/100 = 0.08 (NOTE: % means 1/100)

Total amount = a

Price for 3 cups without tax = p

tax of price for coffee = t

8% tax with coffee = p+p*0.08

How does the equation work, for example:

p = 10

p*0.08 = 0.8

p+p*0.08 = 10+0.8= 10.8 // price with tax

a = p + t

7.29 = p + 0.08p //Combine like terms

7.29 = 1.08p //Divide both sides by 1.08

7.29/1.08 = p

6.75 = p //Price of all 3 coffee without tax

6.75 = 3p //Finding price of 1 coffee without tax

6.75/3 = p

2.25 = p

Now finding total amount of per coffee with tax:

a = p + t

a = 2.25 + 2.25*0.08

a = 2.25 + 0.18

a = 2.43

Checking:

a = 2.43 //Price of per coffee with tax

a = 3(2.43) = 7.29 // Price of all 3 coffee with tax

//Hope it helps and it's right.

5 0

4 years ago

Joan received $100 in gift cards for an online music store. Each time she buys a new song it costs $1.29. She has already bought

Artyom0805 [142]

-1.29(10) less then sign 100
he can by 67 more songs

5 0

3 years ago