100 = 2t + 4f
40= t + f
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get t or f by itself first.
f = 40 - t : Then substitute it back into for f in the other equation
100 = 2t + 4f
100= 2t +4(40-t)
100= 2t + 160 - 4t
100 = -2t + 160
-160 -160
<u>-60 </u>= <u>-2t
</u>-2 -2
t = 30 (Then plug this into either equation to solve for f)
Therefore,
t = 30 questions
f = 10 questions
Answer:
the answer is 39
Step-by-step explanation:
first add 6 and 7
3(13)
=39
Answer:
25
Step-by-step explanation:
You have is circled plus 25 is 5 and 5 multiplied and 5 is a prime number.
Answer:
y= ½x+9
Step-by-step explanation:
Use desmos makes it easier
Answer:
Regular Polygons
Polygons can also be classified as equilateral, equiangular, or both. Equilateral polygons have congruent sides, like a rhombus. Equiangular polygons have congruent interior angles, like a rectangle. When a polygon is both equilateral and equiangular, it is called a regular polygon.
