For the top shape, x = 11, y = 10 and z = 14.
Start with the equation: 11y + 7y = 180 because those two angles are supplementary. Solving that will give you that y = 10.
The angle that is labelled 7y is therefore 70 degrees. We can write the following equation will the 5x because it is corresponding to the 70 degree angle.
5z = 70
z = 14
And we can also write and solve for the x, using the 70 degree angle.
70 + 10x = 180
10x = 110
x = 11
Answer:
(21, 28)
Step-by-step explanation:
Multiply coordinates by 7.
Answer:No A
Step-by-step explanation:
2hours 24 minutes
Answer:
16 girls
Step-by-step explanation:
If you have 12 boys, and the ratio is 3;4, that means you multiplied 3 times 4. To find the answer to this problem, you need to multiply 4 by 4 because you multiplied 3 by 4, and you always have to multiply or divide by the same thing if its a ratio.
Answer:
84
Step-by-step explanation:
4 test grades with an average of 80 would have a total of 80x4=320.
75+83+78=236
320-236=84