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Nadusha1986 [10]
3 years ago
13

If it rained on 3 days out of 20 days on what percent of the days did it rain

Mathematics
2 answers:
RUDIKE [14]3 years ago
5 0
I’m pretty sure it’s 15% but I I can’t be 100% certain I wasn’t very good at math. O.o
Andrei [34K]3 years ago
3 0
It rained on 15% of those days
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Please help me with the Math. Thx in advance! <br> Number's 8-11. THANK YOU!
Stella [2.4K]
8 :=7
9= 2/3
10=3/20
11=4
8 0
2 years ago
Read 2 more answers
When it says graph the image, it's asking me to graph a reflection across x = -2. what's the answer look like?
uranmaximum [27]

The reflection across x = -2 will be x = 2.

8 0
2 years ago
Me remaining days
Alex73 [517]
Well $25 is the standard price initially.

$10 is added every hour as a constant rate.

Therefore a. 25 + 10h is the right expression
4 0
3 years ago
Find the perimeter of a polygon with vertices at A(0, 1), B(4, 4), C(7, 0), D(3, -3), E(-4, -4). Round your answer to the neares
wlad13 [49]

It's interesting that areas from coordinates are much simpler than perimeters from coordinates.  It's almost like math is telling us area is more fundamental than length.

p = AB+BC+CD+DE+EA

We use the Pythagorean theorem, square root form, on all the sides.  We can skip a lot of the square roots because most of these are the hypotenuse of a 3/4/5 right triangle.

B-A=(4-0, 4-1)=(4,3) so length AB=5

C-B=(7-4,0-4)=(3,-4), so again  BC=5

D-C=(3-7, -3-0)=(-4,-3) so again CD=5

E-D=(-4-3, -4 - -3) = (-7, -1).  Ends our streak.  DE=√(7²+1²)=√50=5√2.

A-E=(0 - -4,1 - -4)=(4,5) so EA=√(4²+5²)=√41.

Three of five were 3/4/5.

p = 5+5+5+5√2+√41 = 15+5√2+√41

I hate to ruin a nice exact answer with an approximation.

p ≈ 28.474192049298324

Answer: 28.47, last choice

8 0
3 years ago
How do we find the factors of x2 – 64
sweet-ann [11.9K]

Answer:

The factors of x²-64 is equal to (x-8)(x+8).

Step-by-step explanation:

The given expression is:

x²-64

we know that, 8² = 64

So,

(x²-8²) = (x-8)(x+8) [As (a-b)(a+b) = a²-b²]

So, the factors of x²-64 i equal to (x-8)(x+8).

8 0
3 years ago
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