The sum of two numbers is 172. Their difference is 10. What are the numbers?
2 answers:
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Answer:
<h2>1,800 pictures</h2>Step-by-step explanation:
Find the diagram attached below with its dimension.
The board is rectangular in nature with dimension of 3.6 m by 1.8 m wall.
Area of a rectangle = Length * Breadth
Area of the board = 3.6 m * 1.8 m
since 1m -= 100cm
Area of the board = 360cm * 180cm
Area of the board = 64,800cm²
If the dimension of a picture on the wall is 6cm * 6cm, the area of one picture fir on the wall = 6cm* 6cm = 36cm²
In order to know the amount of 6cm* 6cm pictures that will fit on the wall, we will divide the area of the board by the area of one picture as shown;
Number of 6cm by 6cm pictures that could fit on the wall
= 64, 800cm²/36cm²
= 1,800 pictures
Answer:
5151.48 cms
Step-by-step explanation:
We have to:
1.68 m is 1680 cm.
Now the rope forms another right triangle. PQB, we can find the value of QB as follows:
tan (71 °) = PQ / QB
Solving:
QB = PQ / tan (71 °)
Replacing we have:
QB = 1680 / 2.9
QB = 579.31
Knowing this value we can find QA using similar triangles PQB and AQP, like this:
QA / PQ = PQ / QB
Solved:
QA = PQ ^ 2 / QB
Replacing:
QA = 1680 ^ 2 / 579.31
QA = 4872
Finally, knowing QA, we can calculate the one we want to know AP:
Sin (71 °) = AP / AB
But AB = QA + QB = 4872 + 579.31, therefore AB = 5451.31
Solved:
AP = Sin (71 °) * AB
Replacing:
AP = 0.945 * 5451.31
AP = 5151.48 cms
