Answer:
D
Step-by-step explanation:
6.2 + 8.5 = 12 + 40 = 52
Answer:
Step-by-step explanation:
Answer:
scale factor = 20%
Step-by-step explanation:
A scale factor is a multiplier which can be used to determine the rate between two or more dimensions.
In the given figure, the sides of the original triangle is 5 times greater than that of the copy. Thus,
the scale factor = 
x 100%
= 
x 100%
= 20%
The scale factor of the original triangle to its copy is 20%. This implies that the dimensions of the original triangle are multiplied by 20% to determine that of the corresponding copy triangle. Thus, we scale down the dimensions of the original triangle by 20%.
Answer:
= 8:00 A.M.
Step-by-step explanation:
▪You first find the total time taken which will be :
2 hrs 55 min + 25 min
= 3 hrs 20 min + 25 min
= 3 hrs 45min
▪ Beginning time = Arrival time - Time taken
= 11:45 - 3:45
= 8:00 am
¿
Answer:
Step-by-step explanation:
The last equation has 2 variables
If we double the first equation and subtract the second one from it, we get rid of y and then comparing the new equation with the last one we can easily solve it
<u>Step 1</u>
- 2(2x + y + 3z) = 2*20
- 4x + 2y + 6z = 40
<u>Step 2</u>
- 4x - x + 2y - 2y + 6z - (-z) = 40 - (-11)
- 3x + 7z = 51
<u>Step 3</u>
- 3x + 7z - (3x - 2z) = 51 - (-3)
- 7z + 2z = 54
- 9z = 54
- z = 6
<u>Then finding x</u>
- 3x - 2*6 = -3
- 3x = 12 - 3
- 3x = 9
- x = 3
<u>Then finding y using the first equation</u>
- 2*3 + y + 3*6 = 20
- y + 24 = 20
- y = -4
<u>The answer:</u>
