문자와 식 전체 문제

The width of a rectangle is $2$ meters greater than the length. Let $l$ represent the length of the rectangle. Write an expression for the width of the rectangle.

Adele bought a skirt and a blouse. The skirt cost $\char36 15$ more than the blouse. Let $b$ represent the cost of the blouse. Write an expression for the cost of the skirt.

The number of girls in a second-grade class is $4$ less than the number of boys. Let $b$ represent the number of boys. Write an expression for the number of girls.

Jack bought a sandwich and a coffee. The cost of the sandwich was $\char36 3$ more than the cost of the coffee. Call the cost of the coffee $c.$ Write an expression for the cost of the sandwich.

Stamps Allie and Loren need to buy stamps. Allie needs four $\char36 0.49$ stamps and nine $\char36 0.02$ stamps. Loren needs eight $\char36 0.49$ stamps and three $\char36 0.02$ stamps.

1. ⓐ How much will Allie’s stamps cost?
2. ⓑ How much will Loren’s stamps cost?
3. ⓒ What is the total cost of the girls’ stamps?
4. ⓓ How many $\char36 0.49$ stamps do the girls need altogether? How much will they cost?
5. ⓔ How many $\char36 0.02$ stamps do the girls need altogether? How much will they cost?

Counting Cash Grant is totaling up the cash from a fundraising dinner. In one envelope, he has twenty-three $\char36 5$ bills, eighteen $\char36 10$ bills, and thirty-four $\char36 20$ bills. In another envelope, he has fourteen $\char36 5$ bills, nine $\char36 10$ bills, and twenty-seven $\char36 20$ bills.

1. ⓐ How much money is in the first envelope?
2. ⓑ How much money is in the second envelope?
3. ⓒ What is the total value of all the cash?
4. ⓓ What is the value of all the $\char36 5$ bills?
5. ⓔ What is the value of all $\char36 10$ bills?
6. ⓕ What is the value of all $\char36 20$ bills?

Buying by the case Joe can buy his favorite ice tea at a convenience store for $\char36 1.99$ per bottle. At the grocery store, he can buy a case of $12$ bottles for $\char36 23.88.$

1. ⓐ Use the distributive property to find the cost of $12$ bottles bought individually at the convenience store. (Hint: notice that $\char36 1.99$ is $\char36 2-\char36 0.01.$)
2. ⓑ Is it a bargain to buy the iced tea at the grocery store by the case?

Multi-pack purchase Adele’s shampoo sells for $\char36 3.97$ per bottle at the drug store. At the warehouse store, the same shampoo is sold as a $\text{3-pack}$ for $\char36 10.49.$

1. ⓐ Show how you can use the distributive property to find the cost of $3$ bottles bought individually at the drug store.
2. ⓑ How much would Adele save by buying the $\text{3-pack}$ at the warehouse store?

A floral arbor is $7$ feet tall. Convert the height to inches.

A picture frame is $42$ inches wide. Convert the width to feet.

Kelly is $5$ feet $4$ inches tall. Convert her height to inches.

A playground is $45$ feet wide. Convert the width to yards.

The height of Mount Shasta is $14,179$ feet. Convert the height to miles.

The play lasted $1\frac{3}{4}$ hours. Convert the time to minutes.

Every day last week, Pedro recorded the amount of time he spent reading. He read for $50,25,83,45,32,60,\text{and}\,135$ minutes. How much time, in hours and minutes, did Pedro spend reading?

Fouad is $6$ feet $2$ inches tall. If he stands on a rung of a ladder $8$ feet $10$ inches high, how high off the ground is the top of Fouad’s head?

Donna is $1.7$ meters tall. Convert her height to centimeters.

Mount Everest is $8,850$ meters tall. Convert the height to kilometers.

A bottle of water contained $650$ milliliters. Convert this to liters.

Minh is $2$ meters tall. His daughter is $88$ centimeters tall. How much taller, in meters, is Minh than his daughter?