Answer:
Step-by-step explanation:
Use the Pyhagorean theorem:
We have
Substitute:
<em>subtract 49 from both sides</em>
Answer:
x=9 and y=3
Step-by-step explanation:
Let's solve your system by substitution.
−4x+6y=−18 and y=−2x+21
Rewrite equations:
y=−2x+21;−4x+6y=−18
Step: Solve y=−2x+21for y:
y=−2x+21
Step: Substitute−2x+21foryin−4x+6y=−18:
−4x+6y=−18
−4x+6(−2x+21)=−18
−16x+126=−18(Simplify both sides of the equation)
−16x+126+−126=−18+−126(Add -126 to both sides)
−16x=−144
−16x
−16
=
−144
−16
(Divide both sides by -16)
x=9
Step: Substitute9forxiny=−2x+21:
y=−2x+21
y=(−2)(9)+21
y=3(Simplify both sides of the equation)
Answer:
x=9 and y=3
Answer:
48 million
Step-by-step explanation:
Since 48,000,000 has TWO non-zero numbers, not one, it can't be the
answer.
The largest digit in the given number is the ten-millions digit, so
you want to round to the nearest ten million, rather than the nearest
million.
47,859,600 rounds to 50,000,000, to one significant digit.
Normally, we would say "round to one significant digit," but you
probably have not seen that term. Your question means the same th
Answer:
294 - 14 = 280 ÷ 5 = 56
In conclusion, there were 56 Students in each Bus.
Answer:
x=47
Step-by-step explanation:
