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Anit [1.1K]
3 years ago
6

I need help on this i was never able to figure it out

Mathematics
2 answers:
Brums [2.3K]3 years ago
7 0

Answer:

the answer is 2.5 hope this helps

Step-by-step explanation:

if not am deeply sorry

Alex787 [66]3 years ago
5 0

Answer:

the answer is 0

Step-by-step explanation:

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In which place is the 9 in 410,928
KatRina [158]

Hello!

4= hundred thousand place

1= ten thousands place

0= one thousands place

9=hundreds place

2= tens place

8= ones

So in total your answer is the 9 in 410,928 is in the hundreds place.

I hope it helps!

I hope it helps!

5 0
4 years ago
a motorboat travels 305km in 5 hours going upstream and 651km in 7 hours going downstream. What is the rate of the boat in still
Ghella [55]
Recall your d = rt, distance = rate * time.

b = speed rate of the boat.

c = speed rate of the current.


keeping in mind that, as the boat goes Upstream, against the current, it's speed is not "b", but is really " b - c ", because the current is subtracting speed from it.

likewise, when the boat is going Downstream, because is going with the current, is really going faster at " b + c ".

\bf \begin{array}{lccclll}
&\stackrel{km}{distance}&\stackrel{kmh}{rate}&\stackrel{hours}{time}\\
&------&------&------\\
Upstream&305&b-c&5\\
Downstream&651&b+c&7
\end{array}
\\\\\\
\begin{cases}
305=(b-c)(5)\implies 61=b-c\implies 61+c=\boxed{b}\\
651=(b+c)(7)\implies 93=b+c\\
----------------------\\
93=\boxed{61+c}+c
\end{cases}
\\\\\\
93=61+2c\implies 32=2c\implies \cfrac{32}{2}=c\implies 16=c

what is the speed of the boat?  well, 61 + c = b.
6 0
4 years ago
Drawing A Red Tile From A Bag And Then Drawing A Green Tile After Replacing The First Tile. Dependent Or Independent?
balandron [24]

Answer:

Independent

Step-by-step explanation:

with replacement the total number of tiles will always remain the same,i.e the sample size will not be changed. so the events are independent.

5 0
3 years ago
What is the solution of 16x-8x-12=24+20
Degger [83]

16x-8x-12=24+20
Combine like terms.

8x -12 = 44
Add 12.

8x = 56
Divide by 8.

x = 7

That's your answer!
3 0
4 years ago
Read 2 more answers
The equation x^2 + y^2 + 21 = 40 + 18y. What is the radius of this cookie?​
trapecia [35]

Answer:

The radius is 10

Step-by-step explanation:

Given

x^2 + y^2 + 21 = 40 + 18y.

Required

The radius

Rewrite as:

x^2 + y^2 - 18y = 40-21

Subtract 81 from both sides

x^2 + y^2 - 18y +81= 40-21+81

Expand

x^2 + y^2 - 9y - 9y +81= 40-21+81

Factorize

x^2 + y( y- 9) - 9(y -9)= 40-21+81

Factor out y - 9

x^2 + (y- 9) (y -9)= 40-21+81

Express as squares

x^2 + (y- 9)^2= 100

x^2 + (y- 9)= 10^2

The equation of a circle is:

(x - a)^2 + (y- b)= r^2

By comparison:

r^2=10^2

r = 10

6 0
3 years ago
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