That’s what I got I didn’t know how to type it so I just took a photo
First pool: 21 liters per min so to get 3100 gone do 3100 divided by 21 which equals 147
Second pool: 33 liters per min and you have 3472 divided 33 = 105
Answer:
140
Step-by-step explanation:
AEF and DFE are opposite interior angles, so they are equal to each other
you can set the equation to 2x + 60 = 3x + 20
subtract 2x from both sides: 60 = x + 20
subtract 20 from both sides: 40 = x
plug in the value of x to the equation for AEF: 2(40) + 60
you get AEF is 140
Elimination method is my favorite way to solve 2 equations like this written in standard form! First I'm going to rewrite the equations and mark numbers to make this explanation more clear.
2x-3y=251️⃣
5x+3y=102️⃣
Looking at these 2 equations we can see that there is a +3 and a -3. This could be eliminated by adding the 2 equations together! *Remember what is on the left side adds with the left side, and what's on the right side adds with the right side. Therefore we can do:
1️⃣+2️⃣
2x-3y+5x+3y=25+10
7x=35
x=5
Then we can substitute the value of x back into either of the 2 equations.
2*5-3y=25
10-3y=25
3y=-15
y=-5
Then write the 2 answers together.
{x=5
{
{y=-5
Now we can check our answers.
2*5-3*-5=10- -15= 10+15=25 Correct
5*5+3*-5= 25+ -15= 10 Correct
From this we can see that x=5 y= - 5 are the correct answers!
Answer:
The answer is either the second one or the fourth one, but the second seems more accurate.
Step-by-step explanation:
Everybody's body is different there are no guarantees, but a healthier body on record supplies you with more energy.
