Answer:
Hello,
Answer : 1400 and 1575
Step-by-step explanation:
Let's say a and b the ywo numbers
Sum of interior angles = (n-2) × 180<span> = (5-2) x 180 = 3 x 180 = 540
so
x + 90 + 107 + 144 + 138 = 540
x + 479 = 540
x = 540 - 479
x = 61</span>
Answer:
- Options 1 and 3 are direct variation
Step-by-step explanation:
<u>Direct variation is:</u>
<u>Options:</u>
1.
2.
- y = 2x + 3, not a direct variation, no
3.
<u>Try the input/output to determine the direct variation:</u>
<u>Verify the other pairs:</u>
- x = 6, y = 6(4/3) = 8
- x = 9, y = 9(4/3) = 12
- x = 12, y = 12(4/3) = 16
- x = 15, y = 15(4/3) = 20
This is also a direct variation
Answer:
The ratio of Jay's age to Kiaria's age to Martha's age.
Jay : Kiaria : Martha
14 : 21 :42
Step-by-step explanation:
Let the ages be represented as:
Kiaria = x
Jay = y
Martha = z
Kiaria is 7 years older than Jay.
x = 7 + y
Making y the subject of the formula
y = x - 7
Martha is twice as old as Kiaria.
z =2x
The sum of their three ages is 77.
x + y + z = 77..... Equation 1
Hence, we substitute in Equation 1
z = 2x
y = x - 7
x + x - 7 + 2x = 77
4x - 7 = 77
4x = 77 + 7
4x = 84
x = 84/4
x = 21
Solving for y
y = x - 7
y = 21 - 7
y = 14
z =2x
z = 2 × 21
z = 42
Hence:
Kiaria = x = 21
Jay = y = 14
Martha = z = 42
The ratio of Jay's age to Kiaria's age to Martha's age.
Jay : Kiaria : Martha
14 : 21 :42
