Answer:
first 4
Step-by-step explanation:
dont click the last one
So, we have a triangle with the angles of >> 90, 45 and 45 degrees.
Lets say that two of the sides of this triangle is >>4 inches long-, the area would be equal to >>16sq Inches.
Now, If two sides is >> 8 inches long, the area of the triangle would be >> 64sq inches.
Finally, the ratio is >> 8/4=1/2.
So based off this (the work above), the answer would be false.
9514 1404 393
Answer:
Step-by-step explanation:
If we let x and y represent the costs of a lamp and end table, respectively, the two purchases can be written as ...
3x +2y = 520
2x -y = 20
__
These equations can be solved many ways. If we use "elimination", we can add twice the second equation to the first to eliminate y:
(3x +2y) +2(2x -y) = (520) +2(20)
7x = 560 . . . . simplify
x = 80 . . . . . . divide by 7
y = 2x -20 = 2(80) -20 = 140
The cost of a lamp is $80; the cost of an end table is $140.
y = 19
x = 4(19) + 21(19) = 76 + 399 = 475
3(475) × 7
1425 × 7
9975 <--- answer.
Hope this helped!
Nate
