288 m²
B.
432 m²
C.
444 m²
D.
576 m²
For x -
180 = 4x + 6 + 11x - 6
180 = 15x
= x
x = 12
For m∠ABD -
4(12) + 6
48 + 6
m∠ABD = 54
For m∠DBC -
11(12) - 6
132 - 6
m∠DBC = 126
Answer:
x = 12° ;m∠ABD= 54° ; m∠DBC=126°
Step-by-step explanation:
∠ABD + ∠DBC = ∠ABC
Here ,
∠ABC is a straight line .
We know,
A straight angle is 180 degrees.
So,
∠ABD + ∠DBC = 180°
⇒(4x+6)° + (11x-6)° =180° [given]
⇒15x =180°
⇒x = (180/15)° [divide both sides by 15]
∴ x = 12°
Now,
∠ABD = (4x+6)° [given]
={(4 . 12) + 6 }°
=(48+6)°
=54°
And,
∠DBC = (11x-6)° [given]
={(11 .12)-6}°
=(132 - 6)°
=126°
Answer:
The number of hours each riders ride = 15 hours.
Step-by-step explanation:
19 riders = 11 days 21 hours to ride from St.Joseph to Sacramento
Let's find the number of hours taken.
1 day = 24 hours.
11 days = 11 times 24 = 264 hours
So, 11 days 21 hours = 264 + 21 = 285 hours
19 riders rode the same number of hours.
To find the each rider ride, we need to divide 285 by 19.
The number of hours each rider ride = hours.