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
notsponge [240]
3 years ago
11

If △ABC is an isosceles triangle where AB¯≅AC¯, m∠A=(2x−20)°, and m∠B=(3x+5)°, then m∠C=__________°.

Mathematics
1 answer:
KengaRu [80]3 years ago
6 0
Refer to the diagram shown below.

Because ΔABC is isosceles and AB = AC, therefore
m∠C = m∠B = (3x + 5)°

The sum of angles in a triangle is 180°, therefore
2(3x + 5) + 2x - 20 = 180
6x + 10 + 2x - 20 = 180
8x - 10 = 180
8x = 190
x = 23.75°

Therefore
m∠C = 3x + 5 = 3(23.75) + 5 = 76.25°

Answer: 76.25°

You might be interested in
michelle bought 4 gallons of grape juice and 5 gallons of apple juice for a party what is the ratio of gallon of apple juice to
just olya [345]

Answer:

5:4

Step-by-step explanation:

Have A Great day

4 0
2 years ago
Please help with this
mezya [45]

Answer:

96

Step-by-step explanation:

If B is the midpoint of AC, the length of AC has to be twice the length of AB. This is because AB = AC. Twice 48 is 96.

4 0
2 years ago
If y varies directly as x, and y = 75 when X = 25. Find x when y=21 PLEASE HELP ASAP
user100 [1]
I think x would equal 7 because when y=75 and x=25, x is one third of y so one third of 21 is 7
6 0
3 years ago
What is the reciprocal of 5 !!!help !!
enot [183]

Answer:

1/5

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Solve pls thank you​
Dominik [7]

Answer:

B.

Step-by-step explanation:

So there are 16 grams initally. Then, the amount of water decreases by 3.5%.

So first we must find 3.5% of 16. 3.5% in decimal form is 0.035, since you divide 3.5 by 100. Then, when you multiply 0.035 by 16, you get 0.56. Since the solution decreased by that percentage, you must subtract 0.56 from 16, which is 15.44.

Then the amount of water decreases by 4.25%. That in decimal form is 0.0425. You multiply it by 15.44, and it comes out to 0.6562. You subtract that from 15.44, not 16, since some of the water has evaporated. So you get 14.7838.

5 0
2 years ago
Read 2 more answers
Other questions:
  • Marnie conducted an experiment using a bag of 12 marbles containing an equal number of blue, red, and green marbles. She randoml
    7·3 answers
  • Tina has 3/5 pound of rice she will use 2/3 of it to make fried rice for her family how much rice will Tina use to make fried ri
    7·2 answers
  • Joanna starts the month with $54 in her savings account at the end of each week Joanna adds eight dollars to the count how much
    8·1 answer
  • PLZ ANSWER THIS <br> SCRENNSHOT
    12·1 answer
  • What is the length of BC in the right triangle below?
    11·1 answer
  • What is the reciprocal of -3 2/7 ? -3 7/2 -23/7 -7/23 3 2/7​
    14·2 answers
  • Angles: Arcs &amp; Angles need help thank you!!
    6·1 answer
  • 5 5/7 x 5 5/7 for a quiz
    15·2 answers
  • 0.0000364% = 1 in ??? like 1 in 729
    14·1 answer
  • New session is here
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!