Answer:
5
Step-by-step explanation:
Subtract 5 to both sides when plugging in 10 for y.
⇒
Answer: 6
Step-by-step explanation:
To get 3/4 miles to 1 mile we must take the reciprocal of the number and multiply it.
×
We need to multiply the 4 1/2 ounces by 4/3 too
×
4 1/2 ounces per 3/4 miles
6 ounces per 1 mile
Answer:
Angle DEG
Step-by-step explanation:
cos(20) = sin(70)
note how 20+70 = 90
The general rule is that if x+y = 90, then cos(x) = sin(y). The rule works in reverse as well. Another way to phrase the rule is cos(x) = sin(90-x).
So,

Note: if the computer doesn't like the answer of "sin 70" then try "sin(70)" and see how that works out. It's also possible that the teacher wants the single numeric value of "70" in the first box rather than the "sine" part to go along with it. Though that would be strange and incorrect since cos(20) = 70 is a false statement.