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Rasek [7]
3 years ago
5

Pick the correct description of the line y=-5/3x

Mathematics
1 answer:
Genrish500 [490]3 years ago
8 0
Where are the choices or whatever ~Description s where are they ..?
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A 20-gallon salt-water solution contains 15% pure salt. How much pure water should be added to it to produce a 10% solution?
Elanso [62]

15% of 20 gal = 0.15 * 20 gal = 3 gal, so the solution contains 3 gal of salt.

If we add <em>x</em> gal of water to the solution, we end up with (20 + <em>x</em>) gal of solution. We want the new mixture to have a concentration of 10%, or

10% of (20 + <em>x</em>) gal = 0.1 * (20 + <em>x</em>) gal = 2 + 0.1<em>x</em> gal

of salt.

The amount of salt in the tank hasn't changed. Solve for <em>x </em>:

2 + 0.1<em>x</em> = 3

0.1<em>x</em> = 1

<em>x</em> = 10 gal

3 0
3 years ago
Baldo is paid $80 per day at his job, plus $15 per hour for every hour (h) that he works overtime. One day, his total earnings w
Flauer [41]
15h + 80 = 140

If you wanted to solve how many hours he worked:
15h + 80 = 140
15h = 60
h = 4. 
6 0
3 years ago
Read 2 more answers
Convert the length 7 centimeters to meters. Compare the numerical values when both numbers are written in scientific notation
miv72 [106K]
<span>1.       </span><span>Given numbers
=> 7 centimeters convert to meters
In every 1 meter there are 100 centimeters
=> 7 / 100
=> 0.07
Therefore in 7 centimeters there are 0.07 meters.
7 cm is a whole number while 0.07 m is a decimal number
Scientific Notation of each numbers
=> 7 cm = 7 x 10^0
=> 7 m = 1 x 10^-2
Scientific notation by the way is an expression used by the scientist to make a large number or very small number easy to handle.


</span>



4 0
3 years ago
Given the figure, what is tan(B)?
alexandr402 [8]

\tan B = \frac{b}{a}

6 0
3 years ago
3. Triangle ABC has angle measures as shown.
dedylja [7]

The 3 inside angles of a triangle need to equal 180 degrees.

Add the 3 angles together to equal 180:

X + x+2 + 6x +10 = 180

Simplify:

8x + 12 = 180

Subtract 12 from each side:

8x = 168

Divide each side by 8:

x = 168 / 8

X = 21

a) x = 21

b) C = 6x+10

replace x with 21:

6(21) + 10 =

126 +10 = 136

6 0
3 years ago
Read 2 more answers
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