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uysha [10]
3 years ago
5

What is 900x450-9???????????????????

Mathematics
2 answers:
Zolol [24]3 years ago
6 0

Answer:404991 is the anser hope this helps

bearhunter [10]3 years ago
3 0
404,991
PEMDAS
Multiplication comes before subtraction
900x450=405,000
405,000-9=404,991
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Jeff was counting the squirrels and birds in the park. He counted 16 heads and 44 legs. How many birds did Jeff count?
hodyreva [135]
So 1 head per squirel and 1 head per bird
4 legs per squirel and 2 legs per bird
s=number of squirels
b=birds
the equatinos should be
1b+1s=number of heads=16
and
2b+4s=number of legs=44
(note 2b=2 times b)
so we aolve

b+s=16 and 2b+4s=44
simplify the second equaiton by divideinb by 2
2b+4s=44
divide 2
b+2s=22

b+s=16
and
b+2s=22
we can actually add the two equations together with the first one made negative
-b-s=-16
<u>b+2s=22+</u>
0b+1s=6
s=6
subsitute
b+s=16
b+6=16
subtract 6 from both sides
b=10


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answer is c

4 0
3 years ago
A recipe for banana oat muffins calls for 3/4 cups of oats. You need to triple the recipe to make enough for your whole family.
Marta_Voda [28]

Answer: 2 and 1/4 cups of oats (9/4 cups of oats)

Step-by-step explanation:

We know that, for the recipe, we need 3/4 cups of oats.

Now, you want to triple the recipe (then you need to use 3 times more ingredients).

This means that, if for the recipe you needed 3/4 cups of oats, when we triple that we have:

3*(3/4 cups) = 9/4 cups

This means that you need to use 9/4 cups of oats.

And we could also write this as:

9/4 cups = 8/4 cups + 1/4 cups = 2 + 1/4 cups of oats.

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3 years ago
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2 years ago
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How to find the perimeter of a octagon
Morgarella [4.7K]

If you know the radius <span>RR</span> of the circle that inscribes a regular polygon having <span>nn</span>sides, the side of the regular polygon can be easily found with trigonometry.

The polygon is composed by <span>nn</span> identical triangles having a common vertex in the center of this circle, therefore this angle is <span><span>2π/n.</span></span>

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3 years ago
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