Answer:
x = √(28), or x = 5.292
Step-by-step explanation:
First you distribute the square to the values inside of the parentheses. so it ends up looking like this
5(x^2 - 25) - 9 = 6
add 9 to both sides
so its 5(x^2 - 25) = 15
Then distribute the multiplication of 5 to the contents within the parentheses
so it would be 5x^2 - 125 = 15
add 125 to both sides
you get 5x^2 = 140
divide by 5 on both sides
you get x^2=28
then, take the square root of both sides to reverse the square
√(x^2)=√(28)
and in the end you get x=5.292
but √(28) will probably be fine if your teacher doesn't want u to solve for that kind of stuff.
6$+ 1$ for every ride you want to ride.
(9×6/2) × 12 = 324
Explination:
The easiest way to understand what you're doing is to find the area of the base first, then extend it upwards to find the volume using height. Hence the equation: b×h=v
So how do we find the base of a triange? Remember that every single triangle can be calculated as a square, then cut in half. So 9 × 6 / 2 = 27 cm2
The next step is to calculate the volume using the height of the figure. 27 × 12 = 324 cm3
**<em>remember to </em><em>use</em><em> </em><em>the</em><em> </em><em>correct</em><em> </em><em>units</em><em>,</em><em> </em><em>since</em><em> </em><em>area</em><em> </em><em>and</em><em> </em><em>volume</em><em> </em><em>are</em><em> </em><em>different</em><em>. </em>
In math, a factor is a number being multiplied; for instance, if 7x5=35, 7 and 5 are both factors.
Answer:
Fernado saves $90.
Step-by-step explanation:
40% of $150 ( original price ) = $60
$150 - $60 ( original price - discounted price ) = $90 ( savings )
The question asks about the 40% markdown only, so I'd assume you wouldn't reduce it by $25.
But if you did Fernando would save $115 :
40% of $150 ( original price ) = $60
$60 - $25 ( mail-in rebate ) = $35
$150 - $35 ( original price - discounted price ) = $115 ( savings )
