MATHEMATICS MIDDLE SCHOOL

A bag contains 5 red marbles and 7 blue marbles. You randomly pick a marble and then pick a second without returning the marbles to the bag. Both marbles are red.

Answers

Answer 1
Answer:

Probability(both marbles are red) = 5/12 * 4/11 = 20/132


= 5/33 Answer
Answer 2
Answer:

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Angie is saving money to buy a new tennis racket that costs $138. She has saved $46 so far. If Angie saves $14 each week, what is the least number of weeks, w, that she will have to save to buy the racket? Write an inequality to describe the situation. Use the inequality to solve the problem.
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It costs the class $15 to make cookies for the bake sale. How many cookies must at least they sell at least to make a profit if each cookie costs 11 cents to make?

Answers

Answer:

1.4

Step-by-step explanation:

First Divide the cost and the amount of cookies so in this case 15 and 11 and you will get 1.4

The stem-and-leaf plot shows the number of home runs Carlos hit in the last five seasons. What is the mean absolute deviation of these values? Carlos home runs

Answers

To find mean, add the numbers then divide by how many numbers there are.

Liam bought 5 7/8 pounds of steak. He used 2 1/16 pounds of the steak for a cookout. Liam has about how many pounds of steak remaining after the cookout?

Answers

Liam bought a total of 5 7/8 pounds of steak. Then he used 2 1/16 pounds of steak for a cookout.Given with the data above, let's find out how many pounds were left after he used some of it.=> Notice that the given numbers are fractions> => 5 7/8 pounds and 2 1/16 poundsSince these are mixed fraction, let's convert it to improper fraction. => 5 7/8 = (8 * 5 = 40 + 7 = 47) = 47 / 8=> 2 1/16 = (16 * 2 = 32 + 1) = 33 / 16The equation is now = 47/8 - 33/16=> Since they don't have the same denominator, let's find the lCD=> 47/8 - 33/16 = 94/16 - 33/16 = 61/16Let's change it to mixed fractions=> 61 /16 = 3.8 or => 3 . 8/100 = 3 2/25

Answer:

hell

Step-by-step explanation:

nothing

Mrs.Hickmam is making cookies. She uses 2 cups of sugar for every 3 tsp. of baking sodaWhich proportion could be solved to find x, the number of teaspoons of baking soda needed for 12 cups of sugar?
​

Answers

For every cup of sugar you use 1 1/2 tsp.
X=12(1.5)
18 tsp

levi watched his favorite movie 9 times on dvd. the movie is 1 6/10 hoirs long. how many hours did it take levi to watch the movie 9 times??

Answers

The answer is 5.4 hours cause you multiply

Which value is equivalent to 7 multiplied by 3 multiplied by 2 whole over 7 multiplied by 5, the whole raised to the power of 2 multiplied by 7 to the power of 0 over 5 to the power of negative 3, whole to the power of 3 multiplied by 5 to the power of negative 9?6 over 25
36 over 25
12 over 5
252 over 5

Answers

The answer is 36 over 35, which is 1.44 in decimals.
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