Answer:
40 days saw either rain or high winds
Step-by-step explanation:
We solve this question using Venn sets.
I am going to say that:
Set A: Rain
Set B: High winds.
18 days saw rain
This means that
29 days saw high winds
This means that
7 days saw both rain and high winds.
This means that
How many days saw either rain or high winds?
This is
Sp
40 days saw either rain or high winds
Rearrange first
2x+y=10
x+y=6
Since there is one y in both equations, you can eliminate them by subtracting.
2x+y=10
- x+y=6 subtract the two equations
-------------------
x=4
Substitute x in one of them
2(4)+y=10
y=10-8
y=2
Answer:
Step-by-step explanation:
We know there are 180° in EVERY triangle. Given one angle is 58°
This triangle shown has two sides that are the same, both are 6. The value of those two sides is irrelavent, except for the fact that this is an Isosceles triangle and the angle opposite those two sides are equal.
x + x + 58 = 180
2x + 58 = 180
2x = 180 -58
2x = 122
x = 61