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Sunny_sXe [5.5K]
3 years ago
13

-3x+10y=-60 3x+5y=15

Mathematics
1 answer:
Verdich [7]3 years ago
6 0

Answer:

x=10, y=-3

Step-by-step explanation:

solve by addition/elimination

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Take 5/6 x 4/1 and multiply 5x4 and 6x1 to get 20/6. 6 goes into 20 3 times, with 2/6 leftover. Reduce 2/6 to 1/3 and your final answer is 3 1/3.
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3 years ago
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Solving equations <br><br> -2(x + 3)=3(2x-10)
nika2105 [10]

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x=3

Step-by-step explanation:

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3 years ago
A Little help here 2!!
harina [27]

Answer:

Unit rates are expressed as a quantity of 1, such as 3 feet per second or 6 miles per hour, they are called unit rates.

In the given table shows the number of pictures taken and how much time it took.

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Number of picture per second = \frac{48}{8} =6 pictures.

For third Camera:

Number of picture per second = \frac{18}{6} =3 pictures.

The camera that takes picture the fastest is, Second Camera.

(a)

As per the given statement: At Davidson's Bike rentals, it costs $29 to rent a bike for 8 hour.

⇒ unit rate per dollar = \frac{Number of hours }{Total cost} = \frac{8}{29} = 0.2758620 hours

Therefore, 0.227 hours (nearest to hundredths) of bike use does a customer get per dollar.

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4 0
3 years ago
Two is subtracted from a number, and then the difference is multiplied by 5. The result is 30
Vanyuwa [196]

Answer:

8

Step-by-step explanation:

8-2=6

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6 0
2 years ago
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A technical machinist is asked to build a cubical steel tank that will hold of water. Calculate in meters the smallest possible
Charra [1.4K]

Answer:

The smallest possible length is 0.83m

Step-by-step explanation:

Given

Volume = 565L

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The smallest length of the tank

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This gives:

565L= Length^3

Express as m^3

\frac{565m^3}{1000} = Length^3

0.565m^3 = Length^3

Take cube roots of both sides

0.8267m = Length

Rewrite as:

Length = 0.8267m

Approximate

Length = 0.83m

5 0
3 years ago
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