Answer:
The answer is: 1, 2, and 6
Step-by-step explanation:
When Serena is 10, her mom is 3*10=30. Her mom is 20 years older than Serena.
If her mom's age divided by half is equal to Serena's, then she will be twice as old as Serena.
20 + 20 = 40
20 * 2 = 40
Serena will be 20, her mom will be 40.
Answer:
Point slope: y+4=4(x-3)
Slope-intercept: y=4x-16
Step-by-step explanation:
1. Use the slope formula to find the slope.
y2-y1/x2-x1
8--4/6-3 = 12/3
Slope is 4
2. Use the slope and one of the coordinates to put the equation in point-slope form.
Point slope form: y-y1=m(x-x1)
y+4=4(x-3)
3. Distribute and simplify to put it in slope-intercept form.
y+4=4x-12
y=4x-16
The speed that Morris is travelling is 0.3 ft/s
<h3>Calculating the speed of a body</h3>
Speed is the ratio of distance covered with respect to time.
Given the following parameters
Speed of Annesha = 50mi/hr
Speed of Moris = 3ft/s less than Aneesha
Convert 50mi/hr to ft/hr
50mi/hr = 73.3ft/s
Speed of Morris = 73.3 - 3
Speed of Morris =70.3 ft/s
Hence the speed that Morris is travelling is 0.3 ft/s
Learn more on speed here; brainly.com/question/14101278
#SPJ1
Let the total number of cans be x and the total number of tennis balls be y,
Since increasing the total number of cans causes the total number of tennis balls to increase too, x and y is direct in proportion.
Let the constant be k,
y = kx
45 = k9
k = 45/9
= 5
The constant of the proportionality for this situation is 5.