1. Which of the following is a composite number?
Answer is D. 49
65= 14x + 23
65-23= 42
42=14x
42/14 =3
3=x
she can buy 3 cds
Answer: Angle 1 = 27
Angle 1 = 63
Remember: complementary angles always add up to 90 degrees.
Set up your equation.
3x + 7x = 90 Combine like terms
10x = 90 Divide by 10 to both sides
x = 9 Answer!
Substitute in (9) for x to find the measurements of the two angles.
Angle 1: 3x
3(9)
27
Angle 2: 7x
7(9)
63
You can also check your work.
27 + 63 = 90
Answer:
(a) = 0.22 hours per dollar, (b) = 8.33 minutes per mile
Step-by-step explanation:
<u>(a): 4/18</u>
0.22 hours per dollar
<u>(b): 25/3</u>
8.33 minutes per mile
Answer: (a) = 0.22 hours per dollar, (b) = 8.33 minutes per mile
5a + 2a(5 + (-b)) = 5a + 2a(5 - b)
Use the distributive property which states a(b+c) = ab + ac
5a + 10a - 2ab
Simplify like terms
15a - 2ab
