Answer:
x=3
Step-by-step explanation:
3(2x+5)=4x+21
6x+15=4x+21
-4x -4x
2x+15= 21
-15 -15
2x=6
2 2
<h2>x=3 Hope that helped!!!!</h2>
Answer:right I was just look for the same thing when I tried to work it
Step-by-step explanation:
Answer: The first card is a diamond and the second card is a heart. Both cards are hearts. Let H denote the event that a heart is drawn; let D denote the event that a diamond is drawn. The first card is a diamond and the second card is a heart: The probability of drawing a diamond on the first draw
Step-by-step explanation:
So to run 10km, you need to run 6.25 times the trail. (Or 7 if you only accept whole numbers as answers, we need to round up).
<h3>How many times will you need to run this trail in order to run 10 kilometers?</h3>
If you run the trail x times, then you will run:
y = x*1mi
Now remember that:
1 mi = 1.6 km
Replacing that, we get the linear equation:
y = x*1.6km
Now we want to find the value of x such that:
x*1.6km = 10km
Dividing both sides by 1.6km
x = 10km/1.6km = 6.25
So to run 10km, you need to run 6.25 times the trail. (Or 7 if you only accept whole numbers as answers, we need to round up).
If you want to learn more about linear equations:
brainly.com/question/1884491
#SPJ1
It's asking you to find what the value of x and y. You need to subtract the 6x to the other side of the first equation so you can plug the y value into the second equation.. so the second equation should look like 2x+3(-6x+9)=-5. Then you would distribute the 3 to simply it father. So the equation will be, after that, 2x+-18x+27=-5. Then you combine like terms, so it will be -16x+27=-5. Now you would subtract the 27 to the other side and you will get -16x=-22. Now you divide by -16, to get x=-38. Now you have your x value and you can plug it in to find the y value. I would use the first equation just because it will be less work. So you will set it up like 6(-38)+y=9 . Now you just finish the equation. So it should look like this...
-228+y=9
Y=230
