Answer:
25
Step-by-step explanation:
pythagorean theorem
a^2+b^2=c^2
7^2+24^2=c^2
square root of 49+576 =c^2
square root of 625 =c^2
25=c
Answer:
-44
Step-by-step explanation:
Answer:
x = 1
y = -3/2
Step-by-step explanation:
Step 1: Arrange the equations with like terms in column.
Step 2: You want 1 set of coefficients that are opposites. This problem already has opposites: -2y and +2y.
Step 3: Solve for x.
4x-2y=7
3x+2y=0
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7x = 7
x = 1
Step 4: Substitute the value of x and solve for y.
4(1)-2y=7
4-2y=7
-2y=7-4
-2y=3
y=-3/2
Answer:
x = -18
Step-by-step explanation:
If 7 out of 10 candles are lit, then seven-tenths of the candles are lit. The tenths place is directly to the right of the decimal. Since you have seven-tenths, the tenths place will be seven. So, the decimal that represents the candles lit will be 0.7
