4 years ago

Two angles are supplementary. One angle measures 26o more than the other. Find the measure of the two angles.

1 answer:

3 0

Supplementary angles are angles whose sum is equal to 180°.

Let one angle be x
The other angle is said to be 26°more than the other so it is x + 26

x + (x+26) = 180
x + x + 26 = 180
2x = 180 - 26
2x = 154
x = 154/2
x = 77

1st angle, x, is equal to 77°
2nd angle, x + 26°, is 77° + 26° = 103°

77° + 103° = 180°
180° = 180°

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Mark owes his sister $15. He earned $20. He gave 1/5 of his earnings to a local charity and then he paid his sister. Does Mark h

ehidna [41]

Answer:

Yes, Mark has $16 left and only has to pay his sister $15.

Step-by-step explanation:

1/5=x/20

use cross multiplication to find (x),which represents 20% of 20.

x/20=1/5 (cross multiply)

20=5x (divide by 5 on both sides)

x=4

This tells you that Mark gave $4 to the local charity.