Answer:
Step-by-step explanation:
<u>We know that:</u>
<u>Let's first solve for y by choosing any equation.</u>
- 4x + y = 14
- => y = 14 - 4x
<u>Now, let's substitute the value of y into the second equation.</u>
- 6x - 3y = 3
- => 6x - 3(14 - 4x) = 3
- => 6x - 42 + 12x = 3
- => 18x - 42 = 3
- => 18x = 42 + 3
- => 18x = 45
- => x = 45/18 = 5/2 = 2.5
<u>Now, let's substitute the value of x into the equation of y.</u>
- => 14 - 4x = y
- => 14 - 4(2.5) = y
- => 14 - 10 = y
- => y = 4
Hence, the value of x and y are 2.5 and 4 respectively.
Answer:
111 months old.
Step-by-step explanation:
you first divide 12 by four giving us 3.
then times 9 by 12. that gives us 108.
then add 108 + 3 to give us the final results.
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Answer:
L = 38, W = 92
or W = 38, L = 92
Step-by-step explanation:
Perimeter = 2 (Width + Length) = 260
→ W = 130 - L
Area = Width × Length = 3496
substitute W into area equation:
→
Using quadratic formula to find L: