4-7x=5
+7x +7x
4= 12x
/12 /12
x= 4/12
x= 1/3
N=.3t, v=.5t-1, when they are riding next to each other n=v so:
.5t-1=.3t
.2t-1=0
.2t=1
t=5
So Vivian catches up to Naomi in 5 minutes....
Because the two triangles together create another 90 degree angle on the right-most side, we can tell the triangle is a 45-45-90 triangle
So the base of the height (the given value is 3). Because it is a 45-45-90, the height is also 3.
You can now find x by using Pythagorean theorem OR just the proof of a 45-45-90 triangle.
Pythagorean theorem version:
a^2 + b^2 = c^2
3^2 + 3^2 = x^2
9 + 9 = x^2
18 = x^2
x = 3
45-45-90 proof
The legs of a 45-45-90 triangle are congruent so you just take the value of a leg and place a
at the end of it.
Leg length is 3 units. Slap a
on the end; answer is 3
Answer:
p > 6
x < 6
x < 2
Step-by-step explanation:
7p > 42
Divide 7 into both sides.
p > 42/7
p > 6
5x - 2 < 28
Add 2 to both sides.
5x < 28 + 2
5x < 30
Divide 5 into both sides.
x < 30/5
x < 6
6x + 5 < 17
Subtract 5 to both sides.
6x < 17 - 5
6x < 12
Divide 6 into both sides.
x < 12/6
x < 2
1.64
2. 95%
Hope this helps you.