<span>Find
the speed of each car.
Let a be the first car
Let b be the second car
=> a = x miles per hour
=> b = x + 12 miles per hour
=> 2 (x+ x + 12) = 232 miles per hour
=> 2x + 12 = 232
=> 2x + 12 = 116
=> 2x = 116 - 12
=> 2x / 2 = 104 / 2
=> x = 52 (speed of Car A)
=> 52 + 12 = 64 miles per hour (speed of Car B)</span>
Answer:
Total area to be painted in gold = 24000 cm²
Step-by-step explanation:
Total height of the stairs = 120 cm
Total standing stairs = 4
Therefore, height or width of one standing stair as shown in the picture,
=
= 30 cm
Length of every stair has = 100 cm
Every horizontal and vertical stair has the same area.
Area of one stair = Length × Width
= 100 × 30
= 3000 cm square
There are 4 horizontal and 4 vertical similar stairs to be painted in gold.
Total area to be painted in gold = 8 × Area of one stair
= 8 × (3000)
= 24000 cm²
Total area to be painted in gold = 24000 cm²
Answer:
Step-by-step explanation:
No. Only if the inequality symbol < were replaced with =, ≤ or ≥, would the boundary line be a solid line.
Answer:
NO
Step-by-step explanation:
3x + 1 and 3x are different
Step 1: Lets put some numbers instead of x
x = 1
y = 3x + 1
y = 3(1) + 1
y = 4
y = 3x
y = 3(1)
y = 3
SEE IT IS DIFFERENT.
Attached are the graphs