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Valentin [98]
3 years ago
11

Given: 3j+k/2=15-4k; Prove j=10-3k And Given 5x-2y=x+14; Prove y=2x-7

Mathematics
1 answer:
baherus [9]3 years ago
4 0

Answer:

I LIKE TRAINS

Step-by-step explanation:

TRAINS 34

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Oksana_A [137]

Answer:

No.  The solution is x=\frac{2}{5}

Step-by-step explanation:

2x+1=5x+2x-1\\1=5x-1\\5x=2\\x=\frac{2}{5}

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3 years ago
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A rectangular tank measures 14 cm by 9 cm by 10 cm. What is the volume of the tank in cubic centimeters?
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Marc is looking at the plans for his new garage. the length of the garage is 8 metres. the scale on the drawing is 1:50. what wi
evablogger [386]
The answer is 16 cm (or 0.16 m).

The scale is the ratio of the model to the real thing.
So, in the scale 1:50, the model is 1, while the real thing is 50.
Now, just make a proportion:
the model : the real thing = the model dimension : the real thing dimension
        1         :          50         =                   x                 :                    8m

From here:
x = 8m * 1 / 50 = 0.16 m = 0.16 * 100 cm = 16 cm.
4 0
3 years ago
You are thinking about switching cell phone carriers because you don't get very good cell coverage at your new apartment. Verizo
oksano4ka [1.4K]

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Step-by-step explanation:

Let your data consumption in terms of GB be represented by x. Since you must first pay access fee and each data costs $7.5 per GB then it means in case you need 1 GB data you will pay 7.5(1)+45, similarly, when you need 2 GB data you will pay 7.5(2)+45, for 3 GB you will also pay 7.5(3)+45. For n GB you will pay 7.5(n)+45 hence the equation representing your data expenditure will be y=7.5x+45 where y is the total expenditure.

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