Answer:
u = 156.25
Step-by-step explanation:
Step 1: Write equation
31.25 = u/5
Step 2: Solve for <em>u</em>
- Multiply both sides by 5: 156.25 = u
- Rewrite: u = 156.25
Step 3: Check
<em>Plug in u to verify it's a solution.</em>
31.25 = 156.25/5
31.25 = 31.25
The percent of the book that the chapter makes up is ten percent
Answer:
sine=opposite/hypotenuse
cosine=adjacent/hypotenuse
tangent=opposite/adjacent
a: 42
b: 135 km/h
Step-by-step explanation:
For part A, you are given the adjacent and opposite side lengths so you need to use the tangent formula. On the calculator, it is tan^-1 (90/100)
For part B, I used the pythagorean theorem and did 100^2+90^2= 18100 and then took the square root of that to get 135.
Jose - 96.25=9x+8y
dominic - 85.25=3x+10y