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
krok68 [10]
3 years ago
15

Find the value of x A. 11.67° B. 42.5° C.18° D.20°

Mathematics
2 answers:
Julli [10]3 years ago
7 0

Answer:

D. 20°

Step-by-step explanation:

The entire angle = 90 degrees you can tell that from the corner indicator

Set the two expressions equal to 90

(3x+10) + (x) = 90

Combine like terms

4x + 10 = 90

Subtract 10 from both sides to cancel it out

4x = 80

Divide each side by 4

x = 20

Check it by substituting x for 20

3(20) + 10 = 70     x = 20     70 + 20 = 90

Paha777 [63]3 years ago
7 0

Answer:

D. 20degrees

Step-by-step explanation:

This is a Complementary Angle so it will equal 90.

3x + 10 + x = 90

4x + 10 = 90

90 - 10

= 80

4x = 80

80 / 4

x = 20

You might be interested in
Lou wants to make a coffee mixture to sell. He is going to mix Sumatra coffee which costs $2.50 per pound with Columbian coffee
Scilla [17]
To answer this question you need to create 2 equations:
S+C=50
2.50S+3.75C=3.35*(50) 
S=50-C -so now you can plug in S into the second equation
2.50*(50-C)+3.75C=167.5
Now you just need to solve this equation, the final answer will be 34 pounds of colombian coffee and 16 pounds of sumatra coffee 
5 0
3 years ago
Evaluate Each Expression. (Show Your Work.)
Anna11 [10]

Answer:

1. 8^2

2. 3^4

3. 5^3

Step-by-step explanation:

1)8×8 = 64

2)3×3×3×3=81

3)5×5×5=125

3 0
4 years ago
I need help with DE Precalculus, mainly trig identities. Would anyone be willing to zoom or text me to help tutor? Thanks!
liq [111]

Answer:

I would help but I'm really tired

6 0
3 years ago
127.5 is 250% of what?
Inga [223]
Your answer is 127.5 is 250% of 51
4 0
3 years ago
Complete the following statement of congruence:
blagie [28]

Answer:

C

Step-by-step explanation:

congruence means duplicate so you have to see its reflection

4 0
4 years ago
Other questions:
  • What is 70% of 350!?!?!?!?
    5·2 answers
  • 1 bag of grape tomatoes coast $3 how many packages can you buy for $15
    6·1 answer
  • 40 is 8% of what number? I need to know HOW the problem is solved
    8·1 answer
  • (6+3)+21=6+(3+21) name each property of addition or multiplication
    10·1 answer
  • What is the solution to the equation x÷8-6=3?
    13·2 answers
  • Ms. Robinson gave her class 12 minutes to read. Carrie read 5 ½ pages in that time. At what rate, in pages per hour, did Carrie
    9·2 answers
  • The total of 26, 78, 198, 475 and 620 is
    10·2 answers
  • A 12-sided die is rolled. The set of equally likely outcomes is {1,2,3,4,5,6,7,8,9,10,11,12}. Find the probability of rolling a
    11·2 answers
  • Carnival M charges an entrance fee of $5.00 and $0.50 per ticket for rides. Carnival P charges and entrance fee of $7.00 and $0.
    11·2 answers
  • A rectangle has a width that measures 11 in. and a length that measures 5.5 in.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!