For this case, the first thing we must do is define variables:
x = number of quarters
y = number of dimes
We now write the system of equations:
x + y = 28
0.25x + 0.10y = 4.05
Solving the system of equations we have:
x = 8.33
y = 19.66
Rounding:
x = 8
y = 20
Answer:
the college student has:
8 quarters
20 dimes
Your question evokes several thoughts. Here are two of them:. 1). It takes 3 points not all on the same line to define a plane. 2). Two points ALWAYS lie on the same line.
Answer:
Step-by-step explanation:
4x+2y<3
y<-2x + 
Answer:
89°
Step-by-step explanation:
Ok so the measure of a triangle is 180°.
We have one angle, so we need to find m∠ACB.
A line is 180°.
180-150= 30.
m∠ACB=30°.
m∠BAC=61°.
180-(61+30)=89°
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I hope this helps!
Have a nice day ❤
Triangle, sum of all 3 angles = 180
so 180 - (99 + 11) = 180 - 110 = 70
answer: the third angle = 70