The length of one leg is 22 units. If you search up 45 45 90 triangle you can find the rules that go with solving for these kinds of triangles.
-32 x 5 = -160
-160/9 = -17.7777777778
if rounded it'll be -18 or -17.8
Answer:
The bookstore receive 9 boxes.
Step-by-step explanation:
Answer:
EF = 20 cm
Step-by-step explanation:
Here, we want to find the length of EF
To do this, we use the principle of similar triangles
The similar triangles we are considering here will be ;
FEA and FBD
when two triangles are similar, the ratio of their corresponding sides are equal
Let us calculate DC first
we can use Pythagoras’ theorem here and it is that the square of the hypotenuse equals the sum of the square of the two other sides
Using the triangle EDC
15^2 = 12^2 + DC^2
DC^2 = 225-144
DC^2 = 81
DC = 9
So the entire length of BD is 9 + 12 = 21 cm
Thus, we have it that;
Let EF be x
so DF = 15 + x
Hence;
BD/DF = AE/EF
21/15+x = 12/x
21x = 12(15 + x)
21x = 180 + 12x
21x-12x = 180
9x = 180
x = 180/9
x = 20 cm
EF = 20 cm
Answer:
A, c(excluding tip, if the tip is included then c is not the answer)
Step-by-step explanation:
I solved the Equations:
A)1/8(x+16)=76/8----60 (this is the correct answer!)
B)1/8(x+16=76)------ 592 (NOT the correct answer
c)x=60 Represents total food bill excluding tip
d) x=60 does represent each friends share of the food bill
E) not correct
