2 years ago

Please help!!! 20 points to whoever helps!

Mathematics

1 answer:

kaheart [24]2 years ago

5 0

I think the answer to this question would be B

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a boat takes 8 hours to go 6 miles upstream and come back to the starting point. if the speed of the boat is 4 miles per hour in

Romashka-Z-Leto [24]

Consider this option:
1. if to re-write the condition, it is given: total time t=8 hours; upstream=downstream=6 miles; V_boat=4 m/h., V_current=V=?
2. note, that total time=time_upstream+time_downstream, where time_upstream=6miles/(V_boat-V) and time_downstream=6miles/(V_boat+V). Using this it is possible to make up and solve the following equation:
$\frac{6}{4+V} + \frac{6}{4-V} =8; \ =\ \textgreater \ \ \frac{V^2-10}{16-V^2}=0; \ =\ \textgreater \ \ V=\sqrt{10} \ \frac{miles}{hour}$

answer: √10

P.S. the roots of the equation are √10 and (-√10), only positive values is needed for V.

7 0

2 years ago

Write an equation in slope-intercept form for the line with slope 8 and y-intercept -8.

Fofino [41]

Answer:

y = 8x - 8

Step-by-step explanation:

y = mx + b is slope-intercept form

m - slope

b - y-intercept

so if you plug in 8 for m and -8 for b you'll get

y = 8(m)x - 8(b)

Hope this helps!!

6 0

2 years ago

Please help me i beg you!!! 30 points!!!

Westkost [7]

The third is because the prove is x = fifteen and if a number is next to a letter, it means multiply, sorry I could only do one.

6 0

3 years ago

Read 2 more answers

Robert and Jason want to buy a group ticket package for football game package a cost 276 and includes two tickets for each of si

8_murik_8 [283]

Package A = $276 for 12 tickets (2 x 6) // 276 divided by 12 = $23 per ticket
Package B = $336 for 16 tickets (2 x 8) // 336 divided by 16 = $21 per ticket
$23 - $21 = $2

Package A charges $2 more per ticket.

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3 years ago

3 in<br> 2.7in<br> 8.65 in<br> cubic inches <br> What’s the volume

jolli1 [7]

Answer:

8.56

Step-by-step explanation:

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3 years ago