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Naily [24]
3 years ago
14

How can u answer this question in words by the shadow u can tell it is 9 dark outside PLZ help

Mathematics
1 answer:
valentinak56 [21]3 years ago
5 0
Ok. So remember those questions you got in kindergarten example: 40 people were asked which was the nicest fruit in their opinion and here is a graph of what they thought was the nicest. So people use number bars as a way to organize problems. Does this make any sense? I will help in comments if it doesn't.

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Question Help
lorasvet [3.4K]

Answer:

The speed of the boat is 20 km/hr

Step-by-step explanation:

Let s be the speed of boat in still water

Let d be the distance

Upstream speed = s-4

Jane took 30 min to drive her boat upstream to water-ski at her favorite spot.

So, Distance traveled in upstream =Speed \times time =(s-4) \times \frac{30}{60}

Downstream speed = s+4

So, Distance traveled in downstream = Speed \times time =(s+4) \times \frac{20}{60}

So, (s-4) \times \frac{30}{60}=(s+4) \times \frac{20}{60}

30s-120=20s+80

10s=200

s=20

Hence The speed of the boat is 20 km/hr

6 0
2 years ago
What is the y intercept of the line -4x + 6y = -12?
snow_lady [41]
  -4x + 6y = -12
-4(0) + 6y = -12
     0 + 6y = 12
           <u>6y</u> = <u>12</u> 
            6      6
             y = 2

The y-intercept of the equation is 2.
6 0
3 years ago
PLEASE HELP! 40 POINTS! All the problems are in the screenshot!
alisha [4.7K]
1.
Domain: {-1, 0, 2, 3}
Range: {2, 4, 6}

2.
Ax+By=C: linear equation standard form
y=mx+b: slope intercept form
(y-y^1)=m(x-x^1): point slope form
5 0
2 years ago
Can someone help me please, its geometry
ahrayia [7]

Answer:

2n

Step-by-step explanation:

Pythagoras a^{2} + b^{2} = c^{2}

2 squared plus 2 squared = 8 but you need to find out the root of 8,

square root of 8 is a surd, so answer in that

5 0
2 years ago
Read 2 more answers
The value of 27degree in grade measure is<br>1. 50 grade<br>2. 30grade<br>3. 40grade<br>4. 45grade​
Crank

Answer:

30 grade

Is the answer according

to me

5 0
3 years ago
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