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!

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.

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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.

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3 years ago

What is the solution of 16x-8x-12=24+20

Degger [83]