Answer:
$115
Step-by-step explanation:B-$40
B-$30
A-$185
185-40-30=$115
That’s the whole question? Question number 20 is just 7? Provide a larger picture so we can see what is around it
When dividing fractions remember to: keep/change/change.
keep the first fraction, change the division sign to multiplication, and lastly change your second fraction to its reciprocal.
x-3/6 * 2/3-x
simplify and cancel (x-3) and (3-x) to -1
final answer: -1/3
Solve simultaneously:
<span>15x-8y=52 and
6x+14y=38
</span>
Let's solve this system thru elimination by addition/subtraction:
Let's get rid of the x terms.
To do this, mult. the first eqn. by -6 and the second by 15. (This is not the only way in which we can do this!!) We get
-90x + 48y = -312
90x +210y = 570
--------------------------
Add all 3 columns together. We end up with:
258y = 258, so y = 1. You can find x by subst. 1 for y in either of the given equations.
If you'd like more help, please be specific about what you want.
Answer: the rectangle of maximum area is a square of side length 1= 4 cm let x and y be the lengths of the sides of the rectangle measured in cm
Step-by-step explanation:
then the perimeter is
2x+2y=16
so that:
y=8- x
