1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Montano1993 [528]
3 years ago
9

Can someone help me with number 8

Mathematics
1 answer:
Darina [25.2K]3 years ago
4 0

Answer:

  a.  42, 48

Step-by-step explanation:

The angles being complementary means their total measure is 90°.

  (12q -9) +(8q +14) = 90

  20q +5 = 90 . . . . . . . . . . . simplify

  20q = 85 . . . . . . . . . . . . . . subtract 5

  q = 4.25 . . . . . . . . . . . . . . . divide by 20

Now, put this value into the expressions for the angle measures:

  12q -9 = 12·4.25 -9 = 42

  8q +14 = 8·4.25 +14 = 48

These two angle measures total 90, so our answer checks OK.

The measures of the angles are 42 and 48 degrees.

You might be interested in
Find the solution of the system of equations.<br><br> x-y=-3<br>-8x+y=45
mezya [45]

Answer:

x = 17, y = 28

Step-by-step explanation:

1. Isolate for x in "x - y = -3, -8":

x - y+y = -3, -8+y

x = -11 + y

2. Substitute "x = -11 + y" in for x in the second expression:

-11 + y + y = 45

3. Simplify:

-11 + 2y = 45

4. Isolate y:

-11+11 +2y = 45+11

2y = 56

\frac{2y}{2} = \frac{56}{2}

y = 28

5. Substitute the new y-value into the first equation:

x = -11 + 28

x = 17

hope this helps!

5 0
2 years ago
What property is <br><br> 5(x+y)=5x+5y
Law Incorporation [45]

Answer: Distributive Property  

4 0
4 years ago
$668 at 9.25% for 5 years
madreJ [45]

Answer:

$21.17

Step-by-step explanation:

Simple Interest=P(1+r)^t

Compounded Interest=P(e^rt)

SI=668*(1.0925)^5

SI=1039.64

CI=668(e^(0.0925*5))

CI=1060.81

1060.81-1039.64=21.17

So the difference is $21.17, thus doing compounded interest is better.

8 0
3 years ago
Which number from the set of numbers {3, 5, 6, 7} makes the equation below TRUE?
beks73 [17]

Answer:

6

Step-by-step explanation:

replace x with 6 in the ecuation.

4(6)=24 - 8 =16

5 0
3 years ago
Read 2 more answers
The mean of the data is 44.7. What is the mean average deviation? Round to the nearest tenth, if necessary.
Alik [6]

Answer:

the answer is 10.3

Step-by-step explanation:

4 0
4 years ago
Other questions:
  • If two angles are complementary and one of the angles measures 27 degrees, what does the other angle measure?
    13·1 answer
  • If f(x) = x + 4 and g(x) = x, what is (gºf)(-3)?
    15·1 answer
  • 5/6 divided by 3????? Pls help
    11·2 answers
  • A.
    11·1 answer
  • What is the length of a diagonal of a square with a side length of 8? A. B. C. D. Please select the best answer from the choices
    7·2 answers
  • Solve. Check your solution.<br> (Simplify your answer.)<br> X/5 + 2 = 1/10
    5·1 answer
  • Find the measurements of this arc
    15·1 answer
  • Can anybody help me w this?​
    14·1 answer
  • Write an equation equivalent to 0.127​
    12·1 answer
  • 115.2 divided by 9.6
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!