Matthew had to make a bridge for his math class. It had to be at least 1 1/2 feet long. Harold made a bridge that was 2 1/3 time
1 answer:
The equation used for finding the length of Harold's bridge will be 3H-7M=0 Length will be H = 1/√2
<h3>What is an equation?</h3>
The equation in mathematics is the relationship between the variables and the number and establishes the relationship between the two or more variables.
Here we have the following data:-
Matthew's bridge length is
1(1/2)=3/2
Now we have that Harold made a bridge that was 2 1/3 times as long as Matthew’s. From this data the equation will be:-
The equation used for finding the length of Harold's bridge will be 3G-7M=0 Length will be H = 1/√2
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Fiona and Pip win some money and share it in the ratio 6:1. Fiona gets £35 more than Pip. How much did they get altogether?
Let Pip get be x and fiona get be x+35
Ratio = 6:1
Answer:
B. 32
Step-by-step explanation:
Let's start by defining the multiplication principle.
If a first experiment can happen in ''a1'' ways,a second experiment can happen in ''a2'' ways ... and finally a ''ni'' experiment can happen in ''ai'' ways ⇒ the total ways in which the whole experiment can take place are :
a1 x a2 x ... x ai
Let's also define the arrangement of ''n'' objects in a straight line.
This arrangement is the number n!
For example if we want all the arrangements for letters A,B and C (n = 3) this number is 3! = 3.2.1 = 6
For the problem we are going to calculate the arrangements in which the father is driving and then multiply that number by 2 to obtain the arrangements in which the father and the mother drive.
When the father drives there are 4 possible seats for 4 persons ⇒ 4! = 16 ways this 4 persons can sit.
Now we subtract the ways in which the two daughters are sitting next to each other.
This number is 2 x 2 x 2.
The ''first'' two is because the two daughters can seat one in the middle seat and one in the right window or one in the middle seat and one in the left window.
The ''second'' two is because the daughters are each different.
And the last two is the ways in which the mother and the son can sit ⇒
If the father drive, there are 16 ways for this arrangement.
Now we multiply by 2 to obtain all the arrangements (we don't forget the case in which the mother drives).
There are 32 possible seating arrangements.