question If 4 3 74a 3b 7 and 5a b 5 what are the values of a and b

Math

If 4�−3�=74a−3b=7 and �+�=5a+b=5, what are the values of �a and �b?

A. �=2,�=3a=2,b=3
B. �=3,�=2a=3,b=2
C. �=4,�=1a=4,b=1
D. �=1,�=4a=1,b=4

Solve the system of equations.

What is the sum of the angles in a regular heptagon?

A. 90∘90∘
B. 180∘180∘
C. 360∘360∘
D. 540∘540∘

If 4�+3=154b+3=15, what is the value of �b?

A. 3
B. 4
C. 5
D. 6

If 4�−3�=74a−3b=7 and �+�=5a+b=5, what are the values of �a and �b?

A. �=2,�=3a=2,b=3
B. �=3,�=2a=3,b=2
C. �=4,�=1a=4,b=1
D. �=1,�=4a=1,b=4

The sum of three consecutive integers is 57. What are the integers?

A. 18, 19, 20
B. 19, 20, 21
C. 20, 21, 22
D. 21, 22, 23

If 2552 of a number is 18, what is the number?

A. 25
B. 35
C. 40
D. 45

If the diameter of a sphere is 12 units, what is its volume?

A. 36�36π cubic units
B. 72�72π cubic units
C. 108�108π cubic units
D. 216�216π cubic units

Solve for �x: 14(8�+12)=541(8x+12)=5

A. �=1x=1
B. �=2x=2
C. �=3x=3
D. �=4x=4

The ratio of the angles in a triangle is 2:3:4. What is the measure of the smallest angle?

A. 30 degrees
B. 40 degrees
C. 50 degrees
D. 60 degrees

Solve: 35×10753×710

A. 6776
B. 15141415
C. 3773
D. 2332

Solve: 5�−2=185x−2=18

A. �=4x=4
B. �=5x=5
C. �=6x=6
D. �=7x=7