Help with the following problems:

1. Leah bought 2 boxes of cookies. She ate 3 and found that she had 21 left. How many cookies were in each box?

2. Arturo built 3 sandcastles with 6 towers each. Paco built 5 sandcastles with 4 towers each. Who built more towers? How many more?

3. Ashley has 35 dollars. She wants to buy 4 bags of peanuts at 2 dollars each. How much money will she have left?

Please solve all or at least ONE of the problems. Thanks!

I'll do the first one.

2x - 3 = 21
2x = 21 + 3
2x = 24
x = 24/2
x = 12

I'll be glad to check your answers to the other problems.

3= $27

😀

Sure! Let's solve each problem step by step and explain the process along the way.

1. Leah bought 2 boxes of cookies. She ate 3 and found that she had 21 left. How many cookies were in each box?

To find out how many cookies were in each box, we can set up an equation. Let's call the number of cookies in each box "x".

The total number of cookies Leah had can be calculated by adding the cookies she ate (3) to the cookies she had left (21).

So the equation would be:
2x - 3 = 21

To solve for x, we can isolate the variable by adding 3 to both sides of the equation:
2x = 21 + 3
2x = 24

Finally, divide both sides by 2 to solve for x:
x = 24/2
x = 12

Therefore, each box originally had 12 cookies.

2. Arturo built 3 sandcastles with 6 towers each. Paco built 5 sandcastles with 4 towers each. Who built more towers? How many more?

To determine who built more towers, we need to find the total number of towers built by each person.

For Arturo:
Total number of towers Arturo built = 3 * 6 = 18 towers

For Paco:
Total number of towers Paco built = 5 * 4 = 20 towers

Therefore, Paco built more towers than Arturo. The difference in the number of towers can be calculated by subtracting the number of towers Arturo built from the number of towers Paco built:
20 - 18 = 2 towers.

Paco built 2 more towers than Arturo.

3. Ashley has 35 dollars. She wants to buy 4 bags of peanuts at 2 dollars each. How much money will she have left?

To calculate how much money Ashley will have left, we need to subtract the total cost of the bags of peanuts from her starting amount of money.

The total cost of the peanuts can be calculated by multiplying the price of each bag ($2) by the number of bags (4):
Total cost of peanuts = 2 * 4 = $8

To find out how much money Ashley will have left, we subtract the total cost of the peanuts from her starting amount:
Amount left = 35 - 8 = $27

Therefore, Ashley will have $27 left.