Answer:
∠4=135
Step-by-step explanation:
vertical angles are always equal
∠1=∠3
3x-9=x+27
3x-x=27+9
2x=36
x=36/2=18
∠1 =3x-9
∠1=3(18)-9
∠1=54-9=45
∠1+∠4=180 degrees
45+∠4=180
∠4=180-45
∠4=135
The first thing we must do in this case is to define variables.
We have then:
x: speed of the giraffe
x + 5: speed of the ostrich
By definition we have:
d = v · t
d / v = t
Where,
d: distance
v: speed
t: time
Since the time is the same then we have:
5 / (x + 5) = 4 / x
5x = 4 (x + 5)
Clearing x we have:
5x-4x = 20
x = 20 mph (speed of the giraffe)
x + 5 = 20 + 5 = 25 mph (speed of the ostrich)
Answer:
20 mph (speed of the giraffe)
25 mph (speed of the ostrich)
I'd suggest rounding up both $13.59 and $1.85: $14 and $2. Subtracting the discount (~$2) from the price (~$14) results in $12. Subtracting this discounted price from the $20 cash in hand results in change of approx. $8.
To simplify you must factor the polynomials first.
Answer:
Hello! answer: 36
Step-by-step explanation:
Complementary angles are 90 degrees
90 - 54 = 36 therefore 36 is the missing angle HOPE THAT HELPS!