He wants to support a scale of 8 m on the wall of his house to access the to install its 5,400 roof lights Christmas. For a ladder to be installed from safe way, his foot should be placed at a certain distance from the wall. This distance must be between the quarter and the fifth of the scale measurement. Is it possible to meet this safety standard if the House has a height of 7.8 m ? Choice of answers (a) this safety standard cannot be met. b) it is possible to meet this safety standard since the ladder must be placed 1.78 m from the wall. (c) it is possible to comply with this safety standard since the safety standard is between 1.5 M and 2m. (d) it is possible to comply with this safety standard by placing the ladder at 2.08 m from the wall.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
He wants to support a scale of 8
m on the wall of his house to access the
to install its 5,400 roof lights
Christmas. For a ladder to be installed from
safe way, his foot should be placed at
a certain distance from the wall. This distance
must be between the quarter and the
fifth of the scale measurement. Is it
possible to meet this safety standard
if the House has a height of 7.8 m ?
Choice of answers
(a) this safety standard cannot be met.
b) it is possible to meet this safety standard since the ladder must be
placed 1.78 m from the wall.
(c) it is possible to comply with this safety standard since the safety standard
is between 1.5 M and 2m.
(d) it is possible to comply with this safety standard by placing the ladder at 2.08 m from the
wall.
according to the question:
Also, it is given in the statement of the question "his foot should be placed at a certain distance from the wall. This distance
must be between the quarter and the fifth of the scale measurement".
therefore,
now it can be seen from the diagram the figure is a right angle triangle:
hypotenuse(H)=8m
base(B)=xm
Perpendicular(P)=7.8m
according to Pythagoras theorem:
Step by step
Solved in 3 steps with 3 images
