Well she has 350 so start with 350 then she spends 180 so put -180, you can put remaining as r.
Answer: 350-180=r
r=170
Find out how many minutes it takes to read 1 page;
33/15=2.2 minutes per page.
Knowing this, you can find out how long it takes for 65 pages;
2.2×65=143 minutes.
Hope I helped :)
Hello from MrBillDoesMath!
Answer:
x = 5 * sqrt(2)
5 = y
Discussion:
First thing: the hypotenuse is the side opposite the right (90 degree) angle. So it is side x NOT side y as shown in your diagram.
The triangle is a 45-45-90 triangle so
tan(45) = y/5 => as tan(45) = 1
1 = y/5 => multiply both sides by 5
5 = y
If you don't care for the trig approach, since it's a 45-45-90 triangle the length of the legs are that same, i.e y = 5
Also sin(45) = y/x => as y = 5
sin(45) = 5/x => as sin(45) = sqrt(2)/2
sqrt(2)/2 = 5/x => multiply bot sides by x
x* sqrt(2)/2 = 5/x * x = 5 =>
x* sqrt(2)/2 = 5 => divide both sides by sqrt(2)/2
x = 5 * (2/sqrt(2))
x = 5 * sqrt(2)
Or if you don't care for the trig approach, simply apply the Pythagorean theorem ( 5^2 + 5^2 = x^2) and solve for x
Thank you,
MrB
1 and half hour
= 60 minutes+ 30 minutes
= 90 minutes
Now,
Uzanne need 15 minutes to do 10 problems
Uzanne need 1 minute to complete 10/15 problems
Uzanne need 90 minutes to do
= (10/15)*90
=(2/3)*90
=2*30
=60 problems
Area = Length x Length
Length = √49 = 7 inches
Answer: 7 inches
