The answer is x=7.
Hope this helps.
Answer:
2/3 of the class are girls.
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
Set equation to 9 to find x:
9=5x-6
+6 +6
15=5x
x=3
Answer: 74.6
we draw a right triangle ABC, have: ∠ABC = 90°, AB = 20 and ∠BAC = 75°, the height of the building is BC
we also have: tan 75° = BC/AB = BC/20
=> BC = tan 75°. 20 = 40 + 20√3 ≈ 74.6
Step-by-step explanation:
Answer:
<em>25</em>
Step-by-step explanation:
Let the number of white beads be w.
Then the number of blue beads is 5w since it is 5 times greater.
Total number of beads = number of white beads + number of blue beads = w + 5w
Total number of beads = 30
5w + w = 30
6w = 30
w = 5
number of blue beads = 5w = 5(5) = 25
