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3 years ago

Marilyn gets $7 a week for doing chores. She wants to buy a $38 book. How many weeks does she need to do chores?

Mathematics

2 answers:

Kitty [74]3 years ago

5 0

Answer:

Step-by-step explanation:

Romashka-Z-Leto [24]3 years ago

4 0

Answer: 6 weeks

Step-by-step explanation: $7x6=42

therefore marilyn has to do chores for 6 weeks to get $38

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I need help please , i dont get it

Hatshy [7]

Answer:

the answer is A, B’(-1,2)

Step-by-step explanation:

for problem two it is a 90 degree rotation

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2 years ago

If two marbles are selected at random with replacing between draws, what is the probability that the outcome is red then yellow?

saul85 [17]

The probability that the outcome is red then yellow is 0.036.

Given that in a jar there are 8 red marbles, 1 yellow marble and 6 green marbles.

We are required to find the probability of obtaining a red then yelow marble if two marbles are drawn and replacement is used.

Probability is the calculation of finding the chance of happening a event among all the events possible. It lies between 0 and 1.

Probability=Number of items/ Total items.

Number of red marbles=8

Number of yellow marble=1

Number of green marbles=6

Total marbles=15

Probability of obtaining red marble=8/15

Probability of obtaining yellow marble=1/15 (Because replacing is there so the number of total marbles do not decrease)

Required probability=8/15*1/15

=8/225

=0.035555

After rounding off we will get 0.036.

Hence the probability that the outcome is red then yellow is 0.036.

Question is incomplete. The following line should be included in question:

A jar contains 8 red marbles , a yellow marble and 6 green marbles.

Learn more about probability at brainly.com/question/24756209

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1 year ago

at the grocery store avocados can be purchased in a package of 6 for 11.10. of they are purchased separately each avocado cost 2

Romashka-Z-Leto [24]

The percentage mark up when purchasing avocados individually is 77.08%

Data;

6 avocado = 11.10
cost of 1 avocado = 2.40

<h3>Percentage Mark up</h3>

To find the percentage mark up of one avocado, let's find the price of one avocado in 6 package of avocado.

$6 avo = 11.10\\1 avo = x\\x = \frac{11.10}{6} \\x = 1.85$

The percentage mark up can be calculated as

$\% mark up = \frac{1.85}{2.40} * 100 = 77.08\%$

The percentage mark up when purchasing avocados individually is 77.08%

Learn more on percentage mark up here;

brainly.com/question/1153322

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2 years ago

Simplify the expression:<br>5k + 7 + 10

denis23 [38]

Answer:

5k+17

Step-by-step explanation:

Combine like terms. Like terms are terms such as 10 and 7. Some caome with variables, such as 5k and 6k. 10+7 is 17. Since you can't combine unlike terms, the expression becomes 5k+17.

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3 years ago

Sketch a graph of 3x+2y=9

Airida [17]

Here is ur answer cuz lol

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