# algebra

posted by .

In a triangle ABC , angle B is 4 times angle A and angle C is 17 degrees less than 5 times angle A. Find the size of the angles.

• algebra -

B=4A
C=5A-17

The three angles of a triangle add up to 180 degrees.

A+B+C=180

hint: use substitution.

• algebra -

21.88888

## Similar Questions

1. ### MATH

In a triangle ABC, angle A is 2 times angles C and angle B is 20 degrees less than angle C find the number of degrees in these angles In a triangle ABC, angle A is 2 times angles C and angle B is 20 degrees less than angle C find the …
2. ### geometry

In a triangle ABC, angle B is 3 times angle A and angle C is 8 degrees less than 6 times angle A. The the size of the angles. Size of angle A is = Size of angle B is = Size of angle C is = can someone please help me with this..?
3. ### Algebra

In a triangle ABC, angle B is three times angle A and angle C is 5 degrees less than 6 times angle A. Find the size of the angles.
4. ### math

In a triangle ABC, angle B is 5 times angle A and angle C is 18° less than 4 times angle A. Find the size of the angles.
5. ### math

In a triangle ABC,angle B is 3 times angle A and angle C is 5 degrees less than 6 times angle A. Find the size of the angles.
6. ### algebra 1

In a triangle ABC,angle b is 4 times angle "A" and angle "C" IS 17 less than 5 times angle "A". Find the size of the angles.
7. ### algebra 1

In a triangle ABC,angle b is 4 times angle "A" and angle "C" IS 17 less than 5 times angle "A". Find the size of the angles.
8. ### algebra

In triangle ABC, the size of angle B is 5 times the size of angle A, and the size of Angle c is 15 degrees less than 4 times the size of angle A. What is the size of angle A?
9. ### algebra

in triangle ABC, the size of angle B is 5 times the size of angle A and the size of angle C is 9 degrees less than 4 times the size of angle A Find the size of angle A
10. ### geometery

In triangle​ ABC, the size of angle B is 55 times the size of angle​ A, and the size of angle C is 1111degrees° less than 44 times the size of angle A. Find the size of the angles.

More Similar Questions