amy had homework for math, science, and history. She spent 1/3 of her time working on math and 1/4 of her time working on science. Question is Amy estimated that she spent 1/7of her time on both math and science homework. Without doing any calculations, determine whether or not Amy's estimate is accurate & explain why or why not.

Answers

Answer 1

Answer: she is incorrect. the denominator, 7, is neither a multiple or factor of the denominators 3 and 4.

Answer 2

Answer: It's Wrong Because 7 Isn't The GCF Between 3 & 4 Plus You Can't Add The Denominator If It's Not The Same Number

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A population of 1000 bacteria is treated with medicine and begin to die 5% each hour. how can the bacteria population be determined after a number of hours,h?

Answers

It would take five hours for all the bacteria to die. 1000 divided by 5 is 200 so 200×5 = 1000

Truck driver drives for five hours at a constant speed of 55 mph. Write an equation that shows the total distance traveled (y) depending on the hours spent driving (x).

Answers

Step-by-step explanation:

$y = 55x \n because \n distance \ = : \: speed \: * \: time$

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Maggie has 7 tiles with pictures of plants and 2 tiles with pictures of animals. Maggie keeps all the tiles on a mat with the pictures hidden and mixes them up. She then turns one tile face up and finds the picture of a plant on it. She removes this tile from the mat and turns over another tile without looking. What is the probability that the second tile that Maggie turns over has a plant on it?

Answers

Answer:

$(3)/(4)$

Step-by-step explanation:

We are given that Maggie has 7 tiles with pictures of plants and 2 tiles with pictures of animals .

Number of tiles with picture of plants =7

Number of tiles with picture of animals =2

Total number of tiles =7+2=9

We have to find the probability that the second tile that Maggie turns over has plant on it .

When she removes one tile of picture of plant then she has number of tiles of picture of plants =6

Total number of tiles =8

Probability,P(E)= $(Number\;of\;favorable\;cases)/(Total\;number\;of\;cases)$

Using the formula then we get

The probability that she finds tile of picture of plant = $(6)/(8)=(3)/(4)$

Answer:6/8 - - - - simplified 3/4

Step-by-step explanation: removing the tile she just flipped over would be 6 plants and 2 animals so there would be 8 total tiles and you would putt the remaining tiles over it like so 6/8 meaning out of the remaining 8 tiles 6 of them are plants giving her a 6 in 8 chance or a 3 in 4 chance

What two different pairs of decimals whose sums are 8.69?

Answers

4.35 & 4.34. Just try to find two numbers that can add up to 8.69. There are many different answers such as 2.69 and 6, 3.98 and 4.71, etc.

Craig just finished reading 120 pages of his history assignment if the assignment is 125 pages what percent has Craig read so far?

Answers

It would be 96% because 120/125 equals .96 or 96%

Our football team won 3/4 of the games that it played. It won 12 games. How many games did it play?

Answers

$(3)/(4)x=12\to x=12:(3)/(4)\to x=12\cdot(4)/(3)\to x=4\cdot4\to x=16\n\nAnswer:Footballs\ team\ played\ 16\ games.$

3/4 with 12 games won. 3/4 = 75% they played 12/16 total 16 games
3/4 = 12/? 4
3*4 =12
4*4 = 16

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