A) The dimensions are (x+10) by (x+10).
B) The perimeter is given by 4x+40.
C) The perimeter when x is 4 is 56.
The quadratic can be factored by finding factors of c, the constant, that sum to b, the coefficient of x. Our c is 100 and our b is 20; we want factors of 100 that sum to 20. 10*10=100 and 10+10=20, so those are what we need. This gives us (x+10)(x+10 for the factored form.
Since the dimensions are all (x+10), and there are 4 sides, the perimeter is given by 4(x+10). Using the distributive property we have 4*x+4*10=4x+40.
To find the perimeter when x=4, substitute 4 into our perimeter expression:
4*4+40=16+40=56.
Answer:
2 2/5 hour
Step-by-step explanation:
Complete Question
A turtle can walk 1/12 of a kilometer in an hour. The turtle is 1/5 of a kilometer away from a pond.At this speed how long will it take the turtle to reach the pond?
From the above question:
1/12 km = 1 hour
1/5 km = x hour
Cross Multiply
1/12 km × x hour = 1/5 km × 1 hour
x hour = 1/5 km × 1 hour/1/12 km
x hour = 1/5 km ÷ 1/12 km
x hour = 1/5 × 12 hour
x hour = 12/5 hour
x hour = 2 2/5 hour
Answer:
B
Step-by-step explanation:
Each tile cover an area of 13 in*13 in= 1.08 ft *1.08 ft= 1.17 square feet.
A) Each box contains 11 tiles, each of which covers 1.17 square feet.
So the area each box covers is 11*1.17 square feet=12.87 square feet
B) A pallet contains 40 boxes, each of which covers 12.87 square feet,
so one pallet covers 40*12.87 square feet=514.8 square feet.
Answer:
A) 12.87 square feet
B) 514.8 square feet.
Answer:
less than.
Step-by-step explanation:
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