Multiply and when u get yo answer, divide to get your answer
(7,82)(11,122)
slope(m) = (122 - 82) / (11 - 7) = 40/4 = 10
y = mx + b
slope(m) = 10
(7,82)...x = 7 and y = 82
now we sub
82 = 10(7) + b
82 = 70 + b
82 - 70 = b
12 = b
equation is : y = 10x + 12
or, in this problem, it is : C = 10L + 12 <== ur equation
if there were 4 dance lessons.
C = 10(4) + 12
C = 40 + 12
C = 52 <== it would cost $52 for 4 dance lessons.
Answer:
Mean = 4
Step-by-step explanation:
Answer:
The kinetic energy of Mary is 20 Joules
Step-by-step explanation:
Given
Mass = 40 kg
Velocity = 1 m/s
Required
Calculate the kinetic energy.
The kinetic of any body is calculated by using the following formula.
K.E = ½mv²
Where K.E represent kinetic energy
m represent the mass of the body
v represent the velocity of the body.
To solve the kinetic energy, in this case, we simply substitute 40kg for m and 1m/s for v.
This gives us
K.E = ½ * 40 * 1²
K.E = ½ * 40 * 1
K.E = 0.5 * 40
K.E = 20
Hence, the kinetic energy of Mary is 20 Joules
The correct answers are B, D and E
Explanation:
The best way to find if each of the statmenet is true or false is to find the percentage in each case. To do this, follow this general formula: Total number / 100 (100 representes the total) x specific percentage. Now, let's apply this formula in each statement
A)
30 ÷ 100 = 0.3 x 15 = 4.5 (This statement is false)
B)
80 ÷ 100 = 0.8 x 25 = 20 (This statement is true)
C)
50 ÷ 100 = 0.5 x 30 = 15 (This statment is false)
D)
60 ÷ 100 = 0.6 x 30 = 18 (This statement is true)
E)
20 ÷ 100 = 0.2 x 40 = 8 (This statement is true)
