Answer:
45% decrease
Step-by-step explanation:
The formula for percent of decrease/ increase is
Original - change/ original
So 40 - 22 = 18
18/40 = 0.45
Turn 0.45 to percent by moving the decimal two spaces to the right
45%
You can check by multiplying the original number by the percentage. So,
40 x 0.45 = 18
Answer:
Y=8x-9
Step-by-step explanation:
The equation for a slope-intercept problem is y=Mx+b. M is the slope, and B is the Y-intercept. Since the slope is 8, M=8, and B= -9 since the Y-intercept is -9.
Answer:
720, 30, and 20
Step-by-step explanation: i did the assignment-
Answer:
(213.8, 419.3)
Step-by-step explanation:
The center of mass is the point at which the sum of the weights relative to each other is zero. The weight distribution is balanced around the mass, and the average of the mass position coordinates of the scattered weight defines its coordinates. Calculations in mathematics are simplified when formulated according to the center of mass.
For finding the place of the center of the mass we should use the formulas below for X AND Y points:
Segment CM X Position = X proximal + A*(Xdistal - Xproximal)
Segment CM Y Position = Y proximal + A*(Ydistal - Yproximal)
A is the percentage of how much the center of mass is from proximal end.
We have:
Proximal X=213
Proximal Y=400
Distal X=378
Distal Y=445
and the percentage of the distance to proximal end, A=42.9%
Segment Central of mass for X is:
CM X = X proximal + A*(Xdistal - Xproximal)=213+0.429*(378-213)=213.8
CM Y= Y proximal + A*(Ydistal - Yproximal)=400+0.429*(445-400)=419.3
So we found that the point on the space for the center of mass is (213.8, 419.3)