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givi [52]
2 years ago
14

At which point do the two equations

Mathematics
1 answer:
Lena [83]2 years ago
4 0

The lines intersect at two places.

They intersect at approximately (-2,8) and (2,3)

Looking at the choices they would be at (1.8,3.2) and (-2.8,7.8)

The answer is D. Both A and B.

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A boat takes 4 hours to go 20 miles upstream. It can go 32 miles downstream in the same time. Find the rate of the current and t
KonstantinChe [14]
Let the boat speed in still water be b.
Let the current speed be c.
The speed going upstream is 20/4 = 5 mph.
The speed going downstream is 32/4 = 8 mph.
b - c = 5 ........(1)
b + c = 8 .......(2)
Adding equations (1) and (2) we get:
2b = 13
b = 13/2 = 6.5
Plugging in the value for b into equation (1) we find c = 1.5.
The boat speed in still water is 6.5 mph and the current speed is 1.5 mph.
4 0
2 years ago
Find ordered pairs: choose two of the answers below
Anarel [89]

Answer:

b -3,3 c 6,9 hope this helps

5 0
2 years ago
19 - k = 4. <br><br><br><br><br>I need help​
Marysya12 [62]

Answer:

15

Step-by-step explanation:

first you have to subtract 4 from 19 to get what k is. that should be your answer. good luck!

5 0
2 years ago
a 240 centimeter board is to be cut into two pieces so that the longer piece is twice as long as the shorter piece. find the len
amid [387]
You need two pieces and 1 has to be 2x longer than the other 
set x as the smaller piece (easier to always go with the smaller value as x)
the other piece is 2x (double in size)
your equations would be 3x=240>>> x= 60

so smaller piece/ x= 60
bigger piece/ 2x= 120
7 0
3 years ago
Read 2 more answers
Can someone please help me!
ANEK [815]

Answer:

<h2><u>Answer</u><u> </u><u>:</u><u>-</u><u> </u></h2>

Option D :- (180 - 2x)°

<h3><u>Hope</u><u> it</u><u> </u><u>helped</u><u> </u><u>:</u><u>)</u></h3>
3 0
2 years ago
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