Please help!

What is the value of x?

X=4

Step-by-step explanation:

sin(60)= 2sqr3 / RT

RT=4

you know that in the triangle sum of 3 angles are 180

so R+Q+T=180

=> T=45 this is a  

isosceles triangle

=> RT=RQ= 4

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x