Kareem saves his coins in a jar. 30% of the coins are pennies. if there are 24 pennies in the jar, how many coins does Kareem have?

Answers

Answer 1

Answer: 30%=30/100=3/10

3/10 of all=pennies=24
divide by 3
1/10 of all=8
times 10
10/10 of all=80
80 coins she has

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I need help ASAP!Lainey is sliding down a water slide that is 387 feet long at a rate of 43 feet per second. How long will it take Lainey to travel from the top to the bottom of the slide?

9 seconds

344 seconds

-9 seconds

-344 seconds

Answers

set this up as a proportion. 43 ft/ 1 sec to 387 ft/ x sec. Now cross multiply to get:

43x = 387

now divide by 43 on each side to get:

x = 9 sec

Lenear programming equation

Answers

Answer: Its where the variable functions matches an output, for example *(modelvariable)=(output((x))

Step-by-step explanation:

Answer:

Linear programming

Linear programming is a method to achieve the best outcome in a mathematical model whose requirements are represented by linear relationships. Linear programming is a special case of mathematical programming.

Step-by-step explanation:

Carla and rob left a 20% tip after having lunch at a restaurant the amount of the tip was $6 Carla's lunch cost $15 which equation can you use to find x, the cost of robs lunch

Answers

This question is a little tricky. Carla had a bill of $15, which we will add to the cost of Rob's lunch. They left a 20% tip on the TOTAL cost of both their lunches, which should equal $6. 20% is equivalent to 0.2. So, the equation is 6=0.2(x+15). In other words, 20% of the sum of Carla and Rob's lunches is 6 dollars.

Answer: 6=0.2(x+15)

beyonce michelle and kelly shared a carton of soft drink containing 2 dozen cans. Beyonce takes 3/8 Michelle takes 5/12 and kelly takes 5./24/ How many cans does each person receive?

Answers

Beyonce gets 9 cans worth, Michelle drinks 10 cans worth of soft drink and kelly receives 5 cans worth.

Dozen = 12 so 2 dozens = 12x2=24

3/8 = 9/24 because 8x3=24 & 3x3=9
5/12 =10/24 because 12x2=24 & 5x2=10
5/24 is fine because it is already out of 24

How do you simplify 15/32?

Answers

Factor each nmber down to prime factors. If they have any factors in common, they can be simplified.

15 is 5 times 3

32 is 2 times 2 times 2 times 2 times 2

No factors in common.

That is as simplified as it will get.

Sorry!

It is actually impossible, because 15 and 32 have no common factors.

Find the difference. 9/14-5/14 would you please show me your work.

Answers

just subtract horizontal 9-5 is 4 and keep the denominator the same

So 5/14 is the answer

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