MATHEMATICS MIDDLE SCHOOL

What is the product of StartFraction 7 Over 11 EndFraction and StartFraction 3 Over 7 EndFraction?StartFraction 3 Over 11 EndFraction
StartFraction 5 Over 9 EndFraction
StartFraction 33 Over 49 EndFraction
1

Answers

Answer 1
Answer:

Answer:

3 over 11 or 3/11

Step-by-step explanation:

Hope this helps!
Answer 2
Answer:

Answer:

Step-by-step explanation:

The start fraction is 3 over 11 end fraction.

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Chile rode her bicycle from her house directly to the library in 4 minutes. The library is 1 mile from her house.Part A: What is Chloe's speed in miles per hour? Show your work and explain you reasoning.Part B: Chloe's trip back to her house took twice as long as her trip to the library. What was Chloe's average speed for the entire trip (from her house to the library and back to her house)? Show your work and explain your reasoning.A.K.A : I need this now!!!!!
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A skateboard that sells for $65 is on sale for 15% off. Find the sale price?

Answers

original price:          $65        
discount:         15% off        
sale price:         ?        

There are two ways you can solve this problem:

Here's the longer way (by one step):
65 * .15 (15% in decimal form) = 9.75
65 - 9.75 = 55.25
sale price = $55.25

Here's the method that's one step shorter:
65 * .85 (100-15 ~ because it's 15%[15/100] off) = 55.25
sale price = $55.25

Either way works for solving discounts/sales. 
The skateboard now sells for 55.25. Hope this helps.

PLEASE SOMEONE HELP AND EXPLAIN THE FIRST ONE PLEASE SO THE HALF LIFE OF A RADIOACTIVE KIND OF POTASSIUM IS 12 HRS . HOW MUCH WILL BE LEFT AFTER 36 HRS, IF YOU START WITH 64 GRAMS OF IT? SO I DID A=64(1/2)^36 POWER IS THAT THE ACCURATE FORM PLEASE I NEED HELP ASAPBTW THIS IS EXPONENTIAL DECAY

Answers

Don't get carried away with the exponent.

The exponent is not the number of years or the number of hours.
The exponent is the number of half-lifes.

In this one, the half-life is 12 hours, and they want to know
how much is left after 36 hours.  36 hours is 3 half-lifes.
The formula that you did is beautiful and almost perfect.
Just change that ugly exponent to the number of half-lifes (3)
and the answer will jump out at you.
half life formula is
F=P(1/2)^(t/h)

F=furure or ending amount
P=present amount
t=time elapsed
h=time the half life is


F=64(1/2)^(36/12)
F=64(1/2)^(3)
F=64(1/8)
F=8 grams

What is the equation for density

Answers

D = M/V  ( Density equals mass divided by volume )

Answer:

A.D = d = m over v is the right answer.

I don’t get this. Can any help me

Answers

The average is the sum of the observations divided by the count.

So the sum of the observations is the count times the average.

So the 9 teachers together make 9(1000)=$9000 per week. The 20 staff (9 teachers + 11 aps) makes 20(1275)=25500.

So the 11 aps must make 25500-9000=16500

So the mean ap salary is 16500/11 =$1500 per week

Clearly management is where it's at.

Check: (1500*11+1000*9)/20 = 1275 good

Choice B
The answer is b. Or 1,500.

dalia saved $3,000 last year.she saved $600 in the month of January.what percent of the total amount of money she save last year did dalia save in the month of January

Answers

The percent of the total amount of money she save last year did Dalia save in the month of January is 20%

What is percentage?

A percentage is a number that tells us how much out of 100 and can also be written as a decimal or a fraction to change the percentage to a fraction,  put the percentage number in the numerator and 100 in the denominator.

Given that, Dalia saved $3,000 last year. She saved $600 in the month of January.

The percentage of the total amount of money she save = 600/3000x100

= 60/3

= 20

Hence, the asked percentage is 20%

For more references on percentage, click;

brainly.com/question/29306119

#SPJ5
Dalia saved 20%of her entire years savings in January. 

3000 is her entire savings

300 is 10 percent of her entire savings, 300+300=600

so 10%+10%=20%

hope this helped 

10 of 12 balloons at James party are filled with helium. In the simplest form, what fraction of the balloons are filled with helium

Answers

u divide by 2 so it is 5/6
5/6 you have to divide the top number and the bottom number by a number that goes into both
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