3t + 20 = 7t
20 = 7t - 3t
20 = 4t
20/4 = t
5 = t.....Tommy has 5 jelly beans
Answer:
hope this helps
Step-by-step explanation:
PLZZZ MARK BRAINLIEST
Answer:
x = 1
Step-by-step explanation:
So first we have to identify what f(x) and g(x) equals. We can do this by looking at their y-intercept and determining their slope, by its rise/run
the two equations are:
y = -2x - 1
y = x + 2
now we solve
f(x) + g(x) = 0
substitute
-2x - 1 + x + 2 = 0
simplify
-x + 1 = 0
divide by -1
x - 1 = 0
add one on both sides
x = 1
We know that sin(a-b) = sina.cosb - cosa.sinb
if a=70 & b=10 the sin(70-10) = sin(60) = √3/2
Sin70cos10-cos70sin10 = sin60 = √3/2