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zlopas [31]
3 years ago
13

Timed test please help

Mathematics
1 answer:
insens350 [35]3 years ago
8 0

Last option: − ∞ < y < 5

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A dolphin dove 31 meters below the surface of the water to reach a fish. It traveled 16% of the total distance every second.
photoshop1234 [79]
It traveled 14.88 meters after 3 seconds

7 0
3 years ago
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Frances can complete 91oil changes in 7 days. How many oil changes can Frances complete in 11days? oil changes
Natali [406]

Answer:

143

Step-by-step explanation:

lets make a fraction:

so

91 oil changes/7days

lets take "x" as the unknown # of oil changes:

so

x/11

91/7=x/11

we can cross multiply:

91*11=7*x

1001=7x

143=x

so 143 oil changes in 11 days

Hope this helps!

4 0
3 years ago
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Is grade level qualitative or quantitative?
Tanya [424]
It would be quantitive I believe
8 0
3 years ago
7 times what equals 1?
Arturiano [62]
For this case, the first thing we must do is define a variable.
 We have then:
 x: unknown number
 Doing the multiplication we have:
 (7) (x) = 1&#10;
 From here, we clear the value of x.
 We have then:
 x =  \frac{1}{7} &#10;
 Therefore, we have:
 (7) ( \frac{1}{7} ) = 1&#10;
 Answer:
 
7 times 1/7 equals 1
4 0
3 years ago
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2x+2y=8 in function form step by step please?
nasty-shy [4]
You could get two different functions out of this:

<u>2x + 2y = 8</u>

1). <u> 'y' as a function of 'x'</u>

Subtract  2x  from each side:  2y  = -2x + 8

Divide each side by  2 :         <em> y  =  -x + 4</em>


2). <u> 'x' as a function of 'y' :</u>

Subtract  2y  from each side:    2x  =  -2y + 8

Divide each side by  2 :        <em>  x  =  -y + 4</em>

Those two functions look the same, but that's just because the original
equation given in the problem was so symmetrical.  In general, they're
not the same function.


7 0
2 years ago
Read 2 more answers
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