Answer:
a=4
Step-by-step explanation:
3a=12
a=12/3
a=4
b+3.3=8.9
b=8.9-3.3
b=5.6
1=14c
1/14=14c/14
1/14=c
512=d+14
512-14=d
498=d
2e=6.4
2e/2=6.4/2
e=3.2
you use. y=mx+b to get your answer o your equation
<h3>
Solution (a):</h3>
- Area of rectangle = LB
- => Area of rectangle = 18 x 36
- => Area of rectangle = 648 in²
<h3>
</h3><h3>
Solution (b):</h3>
<u>Since the two triangles are equal (as said in the question):</u>
- => Area of triangles: 2(1/2 x 6 x 18)
- => Area of triangles: 6 x 18
- => Area of triangles: 108 in²
<h3 /><h3>Solution (c):</h3>
<u>Subtract the area of the triangles from the area of the rectangle.</u>
- 648 - 108 = Area of trapezoid
- => 540 in² = Area of trapezoid
This is a conversion problem. We know that 1 mile is 5280 feet, right? Since Ellie lives 2 miles, and two is double of 1, we just take 5280 and multiply that by two (or add it twice) to find how many feet is between Ellie's house and school. 5280 x 2 = 10560 (you get the same answer if you add 5280 twice). Therefore, 10560 feet lies between Ellie's house and school.
Answer:
Step-by-step explanation:
Let's look at a few examples where we know the number of movies. Let's say just 1 movie is rented. Well, then there's the subscription charge of 4 dollars and then 2.25 for the one movie. Two movies would be 4+2.25+2.25. 3 would be 4+2.25+2.25+2.25. So the number of 2.25s increases with each movie. You could brute force it and just keep adding 2.25 until you get 31, but there's a better way.
Multiple additions like this is of course multiplication. so one movie is 1*2.25, two is 2*2.25 and so onwe want to know how many were bought, so let's call that number something we don't know, x. Also, you want to take into account the 4 dollar subscription fee. This leaves us with an equation that looks like this.
4+2.25x = 31
Now, to solve for x we can do a few things to this. I'm assuming you are new to this so I will take it slow. Let's say it was a simpler problem. 5+x=10. Or five plus something equals 10. You might be able to figure it out super easily and just know that 5+5 is 10. A way to solve it with our problem though is to take the euations 5+x=10 and manipulate it on each side of the equation. Here, 5 is being added to x, but what if we subtract 5? well, 5+x-5=x. Since we did that to one side of the equation though we have to do the ame to the other side. so 10-5. Or in other words we subtracte 5 from both sides.
5+x=10
-5 -5
x = 5
So that's ne part of how we are going to find x in 4+2.25x = 31
4+2.25x = 31
-4 -4
2.25x = 27
Now, in the last part 5 was being added so we subtracted. Here, 2.25 is being multiplied so we divide. If we divide both sides by 2.25 we get x = 12, so that's the answer.
