Step-by-step explanation:
x=y+7
3x+2y=6
so wherever you see X you but y+7
3(y+7)+2y=6
3y+21+2y=6
group like terms
3y+2y=6-21
5y=-15
divide by 5
y=-3
to find x sub the y value in the equation
x=y+7
x=-3+7
x=4
Answer:
252 feet cubed
hope this helps!
Step-by-step explanation:
Answer:
<h3>x = 40/7</h3>
Step-by-step explanation:
Look at the picture.
If ABC is any triangle and AD bisects (cuts in half) the angle BAC, then
In our triangle we have the proportion:
<em>cross multiply</em>
<em>use distributive property</em>
<em>add 8x to both sides</em>
<em>divide both sides by 14</em>
2.8y + 6 + 0.2y = 5y – 14
Simplify the left side:
3y +6 = 5y-14
Subtract 3y from both sides:
6 = 2y -14
Add 14 to each side:
2y =20
Divide both sides by 2:
y = 20 / 2
y = 10
Answer:
12
Step-by-step explanation:
9 + 3 = 12
Where are these "hearts"?
