175 pairs of skates are rented for 7 hours.
Step-by-step explanation:
Given,
Pairs of skated rented each hour = 25
Let,
Number of hours = h
Total pairs rented = T
T = Pairs rented each hour * number of hours
T = 25h
Evaluate the expression for 7 hours.
h = 7

175 pairs of skates are rented for 7 hours.
Keywords: multiplication, linear expression
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If you notice the picture below
the composite figure is just a trapezoid sitting on top of a rectangle
and then, the rectangle has a triangular hole in it
so.. get the area of the trapezoid

then get the area of the rectangle, which is just a 12x14
and then get the area of the triangle, which surely you know is 1/2 bh
then, subtract the triangle's area from the rectangle's area
and whatever is left, namely the difference, add that to the area of the trapezoid, and that's the composite's area
namely the area of the trapezoid plus the rectangle's, minus the triangle's
Right square pyramid V=189cm³
Given two points A(x₁,y₁) and B(x₂,y₂) the distance betwen these points will be:
dist(A,B)=√[(x₂-x₁)²+(y₂-y₁)²].
We have these points: A(0,0) and B(6,3); its distance will be:
dist(A,B)=√[(6-0)²+(3-0)²]
=√(6²+3²)
=√(36+9)
=√45 ≈ 6.71
Answer: D. 6.71 units.