9.7 Solve a formula for a specific variable  (Page 8/9)

A circular mosaic has radius $3$ meters. Find the

1. ⓐ circumference
2. ⓑ area of the mosaic

A circular fountain has radius $8$ feet. Find the

• ⓐ circumference
• ⓑ area of the fountain

Find the diameter of a circle with circumference $150.72$ inches.

Find the radius of a circle with circumference $345.4$ centimeters

a rectangular solid with length $14$ centimeters, width $4.5$ centimeters, and height $10$ centimeters

a cube with sides that are $3$ feet long

a cube of tofu with sides $2.5$ inches

a rectangular carton with length $32$ inches, width $18$ inches, and height $10$ inches

a sphere with radius $4$ yards

a sphere with radius $12$ meters

a baseball with radius $1.45$ inches

a soccer ball with radius $22$ centimeters

a cylinder with radius $2$ yards and height $6$ yards

a cylinder with diameter $18$ inches and height $40$ inches

a juice can with diameter $8$ centimeters and height $15$ centimeters

a cylindrical pylon with diameter $0.8$ feet and height $2.5$ feet

a cone with height $5$ meters and radius $1$ meter

a cone with height $24$ feet and radius $8$ feet

a cone-shaped water cup with diameter $2.6$ inches and height $2.6$ inches

a cone-shaped pile of gravel with diameter $6$ yards and height $5$ yards

A plane flew $4$ hours at $380$ miles per hour. What distance was covered?

Gus rode his bike for $1\frac{1}{2}$ hours at $8$ miles per hour. How far did he ride?

Jack is driving from Bangor to Portland at a rate of $68$ miles per hour. The distance is $107$ miles. To the nearest tenth of an hour, how long will the trip take?

Jasmine took the bus from Pittsburgh to Philadelphia. The distance is $305$ miles and the trip took $5$ hours. What was the speed of the bus?

Solve for $t\text{:}$

1. ⓐ when $d=403$ and $r=65$
2. ⓑ in general

Solve for $r\text{:}$

1. ⓐ when $d=750$ and $t=15$
2. ⓑ in general

Solve for $b\text{:}$

1. ⓐ when $A=416$ and $h=32$
2. ⓑ in general

Solve for $h\text{:}$

1. ⓐ when $A=48$ and $b=8$
2. ⓑ in general

Solve for the principal, $P,$ for:

1. ⓐ $I=\text{\$720},r=\text{4\%},t=3\text{years}$
2. ⓑ in general