Answer:
40 people
Step-by-step explanation:
First thing, you have to find the area below the 40 - 55 line in the histogram. The area can be find using the area of a rectangle: side × side
Doing this you'll find an area of 60.
After that, find the total area of the histogram in the same way: separate it in rectangles and use the formula for the area of a rectangle, and after you'll find a total area of 100
Now you have to do a rule of three:
We know from the question statement that the amount of people with 40 - 55 years old is 25, and that area correspond to 60, so:
60 ------- 24
100 ------- x
60•x = 24•100
60x = 2400
x = 2400/60
x = 40
Two triangles ∆DEF
and ∆<span>MNO are equivalent to each other, then their
corresponding angles and sides are also equal to each other. Therefore option C
is correct, which is angle EDF is equal to angle NMO. It is also mentioned in
the attached diagram. </span>
Answer:
2:3:4
Step-by-step explanation:
100:150:200
10:15:20
2:3:4
hope it helps
pls mark me as brainliest
Answer:
Step-by-step explanation:
We are given the equation:
And we want to solve using the quadratic formula.
First, isolate the equation:
Recall that for equations in the form <em>ax</em>² + <em>bx</em> + <em>c</em> = 0, the solutions are given by:
In this case, <em>a</em> = 2, <em>b</em> = 4, and <em>c</em> = -15.
Substitute and evaluate:
In conclusion, our two solutions are: