5x + 8 = 7x
8 = 7x - 5x
8 = 2x
8/2 = x
4 = x <== the number
Answer: r≈6
Step-by-step explanation: Using the formula
C=2πr
Solving forr
r=C
2π=37.7
2·π≈6.00014
Y=ax+b
Temos:
b=1
e o ponto (3,3)
Substituindo:
3a+1=3 ⇒ 3a=3-1 ⇒ 3a=2 ⇒ a=2/3
Portanto:
y=2/3x+1
Answer:
The x-axis should be the units and the y-axis should be the prices.
Step-by-step explanation:
IF you guys have time, this is my explanation:
In a graph, we always think of "rise over run" or "y over x." Another way to write this is "y PER x." For example, 90 percent is "90 per 100," which can also be written as, "90 OVER 100." So, do we have price per unit or unit per price?
The answer would be, "unit per price." This is because the question asks to compare the unit prices, not the price units. Think unit price = unit PER price. Price unit = price PER unit. So the question asks, "For every unit, what will the price be?"
Therefore, units is x and prices are y because we are trying to compare price per unit, which we now know is y PER x.
Answer:
8+8/-8-4
16/-12
4/-3
8=4/-3(-8)+b
8*3=12+b
24=12+b
12=b
y=-4/3+12
Step-by-step explanation:
