The equation for percentage increase is
{(New value - old value) / old value} x100%
Therefore it should be
{(22.5 - 19.5) / 19.5} x 100%
=15% (rounded to nearest whole number)
Answer is B
(25x^2 − 14xy + 4) − (7x^2 − 9y) + (2xy + 7)
= 25x^2 − 14xy + 4 − 7x^2 + 9y + 2xy + 7
= 18x^2 - 12xy + 9y + 11
Hope it helps.
Answer:
<h3> The first number is <u>6</u>, the second number is <u>9</u></h3>
Step-by-step explanation:
a:b = 2:3
a = 2x - first number
b = 3x - second number
a³ + b³ = 945
Answer: 4.5 meters is 45 centimeters.
Step-by-step explanation: The centimeter is just a single digit behind a meter, or in more mathematical terms, a tenth of a meter.
In this case, you can simply multiply 4.5 by 10 or divide 4.5 by one hundreth (or 1/100). In doing so, you'd successfully acheive the value of 45. Study your conversions
