Answer:
The scale factor is k = 1/30
a)
<u>The length of the wing on the model:</u>
- 9 m * 1/30 = 900 cm * 1/30 = 30 cm
b)
<u>The area of the tail section of the plane:</u>
- 80 cm² : (1/30)² =
- 80 cm² * 900 =
- 72000 cm² =
- 72000 * (1/100)² m² =
- 7.2 m²
1page and 3/7 of a page means 10/7pages.
2/3 minutes equals 40 seconds.
1 minute = 60 seconds
divide 10/7 by 40 then multiply the answer by 60 you get the number of pages Charlie can read per minutes.
(10/7 ÷ 40)*60=15/7=2 pages and 1/7 of the page.
Answer: 2 1/7
Answer:
x = 88.2
Step-by-step explanation:
The angle at the top of the triangle = 90° - 10° = 80°
and the left side of the triangle is x ( opposite sides of a rectangle )
Using the tangent ratio in the right triangle
tan80° = =
Multiply both sides by x
x × tan80° = 500 ( divide both sides by tan80° )
x = ≈ 88.2
<span>So, x+15 + 2x = 90 </span><span>
<span>Therefore 3x = 90 - 15 = 75 </span>
<span>and so x=25. </span>
<span>So the smaller angles are x+15 = 40 degrees and
2x=50 degrees. </span>
<span>So the larger one is 50 degrees.</span></span>
<u>27</u>
using bodmas rule:
=================
Solve:
11 x 12 - 7 x 15 (carry out multiplication first)
132 - 105 (subtract)
27 (final answer)