Answer:
C
Step-by-step explanation:
Answer:
Step-by-step explanation:
5x - y = -21
y = 5x + 21
Substituting into:
x + y = -3
x + 5x + 21 = -3
6x = -24
x = -4
y = 5(-4) + 21
y = 1
Solution: (-4,1)
Answer: 2
Step-by-step explanation: Since the y value is 2 when the x value is zero, the initial value is 2.
Answer:
<h2><u><em>
20√2</em></u></h2>
Step-by-step explanation:
The diagonal of a square is given as, √2 × side. Rearranging this formula to calculate the side of the square, we get, side = diagonal/√2 = (√2 × diagonal)/2 . Thus, the perimeter of the square can be calculated using the formula, P = 2√2 × diagonal.
Diagonal = 5 * 2 = 10
P = 2√2 * 10
P = 20√2
Answer:
Thomas is 19 years old
Step-by-step explanation:
Thomas's age is T
Huilan is 2 times Thomas's age or 2T
the sum of both ages is 57
That means T + 2T = 57
3T = 57
T = 57/3
T = 19
Since T is Thomas's age, Thomas is 19 years old
Huilan is 38 years old
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-Chetan K
