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swat32
4 years ago
13

Evaluate 2- (-4) + (-y) where y =7

Mathematics
1 answer:
Anna35 [415]4 years ago
4 0
2 - (-4) + (-y)    y = 7

2 - (-4) + (-7)

2 + 4 - 7

-1

hope that helps, God bless!
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A rectangular field has dimension of 91 feet by 60 and 1/3 feet what is the area of the field
Oliga [24]

Answer:

Area = 91*\frac{181}{3}=5490\frac{1}{3} square feet

Step-by-step explanation:

The area of a rectangle is given by the formula:

A = length * width

Where length is 91 feet and width is 60\frac{1}{3}  feet

Before we do the multiplication, we have to change the mixed number [width] into an improper fraction by using the rule shown below:

a\frac{b}{c}=\frac{(a*c)+b}{c}

Hence,

60\frac{1}{3}=\frac{181}{3}

So, the area is:

Area = 91*\frac{181}{3}=5490\frac{1}{3} square feet

8 0
4 years ago
Radar tracking station O is 40 km away from a ship at Point A. The ship travels east 45 km to point C at 30 km/h. How long will
RUDIKE [14]
First, let's find the time where the ship arrives to point C
t=d/V, t= 45/30=1.5h
if the ship's departure time is at 1.5h, on the point C, let 's find its arrival to the point O, V=D/Dt,  Dt=tfinal-tinitial
Dt=D/V= 20/30=0.6h=t final -t initial, implies t final=0.6+t initial=0.6+1.5=2.1h

so the ship will be on the radar at 2.1h, 
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Zinaida [17]
I hope this helps you

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3 years ago
What is 19 x89532.089 x89 =<br><br><br> I need help please hurry
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3 years ago
Read 2 more answers
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Misha Larkins [42]

Answer: 11%

Step-by-step explanation: What I did is i added 21 8 and 2 together and subtracted them by the amount of students which is 28. Then with that number/ 3 I divided by 28 which gave me the percentage .10714. I then rounded and ended with 11%. Im pretty sure this is the right answer if anyone thinks they know im wrong please say

4 0
3 years ago
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