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Arada [10]
3 years ago
12

On the first part of a journey, Alan drove a distance of x km and his car used 6 litres of fuel.

Mathematics
1 answer:
irinina [24]3 years ago
6 0

Answer:

\frac{600}{x+20}\text{ litres per 100 km}

Step-by-step explanation:

Given,

The number of litres consumed by car in (x+20) km = 6,

So, number of litres consumed by car in 1 km = \frac{6}{x+20},

Now, number of litres consumed by car in 100 km = 100 × litres consumed by car in 1 km

=100\times \frac{6}{x+20}

=\frac{600}{x+20}

Hence, the rate of fuel used by his car would be \frac{600}{x+20} litres per 100 km.

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2(x+4)+4x<br><br>simplify expression​
OLEGan [10]

Answer:

6x+8

Step-by-step explanation:

2(x+4)+4x

2x+8+4x

6x+8

4 0
3 years ago
the area of a rectangular barn is 96 square feet. its length is 4 feet longer than the width. find the length and width of the b
lana [24]

Answer:

Triangle

Step-by-step explanation:

2=2

5 0
3 years ago
Write the expanded from of h(3k-12.4)
rewona [7]

Answer:

3kh - 12.4h

Step-by-step explanation:

h(3k-12.4)

= h(3k) - h(12.4)

= 3kh - 12.4h

7 0
2 years ago
A membership to the gym costs $23 per person in 1995. The membership cost has increased by an average of $6 per person for each
notsponge [240]
A) The membership cost starts at $23 and it adds $6 every year. The 23 would be your b and the 6 would be your slope, m, in the form y=mx+b.
y=6x+23
This equation means that you're starting at 23 dollars and adding 6 dollars with every x you add.

B) 2009-1995=14 This means that there's 14 years that the cost increased. 14*6=$84 The membership cost increased by anther $84 over the 14 years. You have to add 84 to 23 to find your total=$107. 

C) Set $85 equal to 6x+23
85=6x+23
6x=62
x≈10
10 years later the cost will be $85. 
1995+10=2005
4 0
3 years ago
Read 2 more answers
I need help can u help me please and thanks
son4ous [18]

Answer:

  17.74

Step-by-step explanation:

The fraction is easily converted to one with a denominator of 100 (a power of 10):

  \dfrac{37}{50}=\dfrac{37\cdot 2}{50\cdot 2}=\dfrac{74}{100}=0.74

Then the number of interest is ...

  17 37/50 = 17 74/100 = 17.74

3 0
3 years ago
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