3x - 4y = -10....multiply by 2
5x + 8y = -2
---------------
6x - 8y = -20 (result of multiplying by 2)
5x + 8y = -2
---------------add
11x = -22
x = -22/11
x = -2
3x - 4y = -10
3(-2) - 4y = -10
-6 - 4y = -10
-4y = -10 + 6
-4y = -4
y = -4/-4
y = 1
solution is : (-2,1)
ΔJKL : ΔXYZ
for two similar triangles we have this property:
plugging the given values to find x
cross multiplying ,
6*x=8*9
6x =72
x=12
If the triangles are similar, the proportion of the legs on the left to the legs on the right will be equal. This proportion would look like:
(You needed to combine the orange segment and the yellow segment to find the total length of the large triangle).
Now, cross multiply and solve for x:
28x+14=30x
<em>*Subtract 28x from both sides to isolate the variable*</em>
14=2x
<em>*Divide both sides by 2*</em>
7=x
Hope this helps!!
Answer:
24 ways
Step-by-step explanation:
By the Fundamental Counting Principle,
Number of permutations = 4 ⋅ 3 ⋅ 2 ⋅ 1
= 4!
= 24
There are 24 different ways the teacher can order the student presentations.
hip hop and randb y u deleted my answering was I being bias?