A triangle has an angle that measures 80°. The other two angles are in a ratio of 7:13. What are the measures of those two angles?

Answers

Answer 1

Answer: You can make a system of equation using the fact that all angles in a triangle need to add up to 180 and that 7:13 can be thought of as 7/13.
lets make one angle a and the other angle b.

a+b=100 (a+b+80=180)
a÷b=7/13

You can solve for a in the second equation to get a=7b/13 and then you can substitute that in for a in the first equation to get (7b/13)+b=100 and then solve for b as follows.
(7/13)b+b=100
b(7/13+1)=100
b(20/13)=100
b=65
You can then solve for a in from plugging in b to the first equation to get a=35.
Therefore the 2 other angles are 35° and 65°.

You can prove this by showing that 35+65+80=180 and that 35/65=7/13.

I hope this helps. Let me know in the comments if anything is unclear.

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How do I do this and what is the answer? please help ASAP!!

How do I solve this ?

Answers

Answer:

J 36

Step-by-step explanation:

AB = 9, BC = 12, and m∠B = 90°. Since this is a right triangle, we can use Pythagorean theorem to find AC.

c² = a² + b²

c² = 9² + 12²

c = 15

So the perimeter is:

P = 9 + 12 + 15

P = 36

Draq is painting a rectangular wall that is 15 ft. Long and 8ft. High. The wall has three Windows, each measuring 3 ft. by 4ft. How many square feet must be painted?

Answers

Total area of rectangular wall = 8ft * 15ft = 120 ft²

Each window area = 3ft *4ft = 12 ft²

For the three windows = 3 * 12 = 36 ft²

Area that must be painted = 120ft² - 36ft² = 84 ft²

How do you find an equal ratio for example is 63:27 14:6 a equivalent ratio?

Answers

Answer:

Step-by-step explanation:

Find a common denominator or greatest common factor. 63 and 27 are both multiples of 9. When you divide each by 9 you get 7:3. 14 and 6 are both multiples of 2. When you divide each by 2 you get 7:3 again. So these ratios are equivalent.

Start with any set of numbers. Multiply them each by the same factor and the new set will be an equivalent ratio.

Can 7 go into 42 and 91

Answers

7 times 6 is 42
91 divided by 7 is 13

Yes. Because 7 time 6 is 42, and 7 time 13 is 91

Please tell me the answer

Answers

This is easy. You all need to do this:
100÷2 it equals 50.
You need to subtract one 50 from either Caroline/Mohamed(Take Caroline's for example)
Caroline = 50-16=34.
Then you add 16 to 50(Mohamed's)
50+16=66
Therefore, Caroline sold 34 tickets, however, Mohamed sold 66 tickets.
To prove: add 66+34
66+34=100

Mohamed sold 58, and Caroline sold 42.

If you have 4 pint of water,how many cup do you have

Answers

THERE ARE 8 CUPS IN 4 PINTS

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