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3 years ago

Math question I need help on

Mathematics

1 answer:

kramer3 years ago

6 0

Complex fractions would be the correct answer :)

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A motorbike uses petrol and oil mixed in the ratio 13:2

torisob [31]

Answer:

Part A) $26\ liters$ of petrol and $4\ liters$ of oil

part B) $3.25\ liters$ or $3,250\ ml$ of petrol

Step-by-step explanation:

Part A) How much of each is there in 30 liters of mixture ?

Let

x-----> the amount of liters of petrol

y----> the amount of liters of oil

we know that

$\frac{x}{y}=\frac{13}{2}$

$x=\frac{13}{2}y$ -----> equation A

$x+y=30$ ---> equation B

substitute equation A in equation B

$\frac{13}{2}y+y=30$

$\frac{15}{2}y=30$

$y=30*2/15=4\ liters$

Find the value of x

$x=\frac{13}{2}(4)=26\ liters$

Part B) How much petrol would be mixed with 500 ml of oil?

Convert ml to l

$500\ ml=0.50\ l$

we know that

using proportion

$\frac{13}{2}=\frac{x}{0.5}\\ \\x=13*0.5/2\\ \\x=3.25\ l$

3 0

3 years ago

Can someone help me please!!

OlgaM077 [116]

Answer:

(-5, 4) slope = -3/5

Y = -.6x +1

Source: http://www.1728.org/distance.htm

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Step-by-step explanation:

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