Answer:
a) £10.50
b) £5.40
Step-by-step explanation:
In this context, "of" means "times".
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<h3>a)</h3>
1/4 × £42 = £(42/4) = £10.50
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<h3>b)</h3>
2/5 × £13.50 = £(2·13.50/5) = £(27/5) = £5.40
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<em>Additional comment</em>
The symbol "£" is a currency symbol identifying the units of the associated number. For algebraic purposes, any symbol representing units can be treated as though it were a variable.
20% percent refers to the rate
So to find 20% off of $125 you have to multiply the rate by the original price and then subtract that number from the original price
First you have to make the percent into a decimal. To do that you have to move the decimal point over to the left two times or divide by 100:
20/100= .20
So the equation would be:
.20 • 125= 25
Now you have to subtract from the original number:
125-25=100
So the answer would be that the stereo would cost 100 with the 20% off sale
Step-by-step explanation:
Given point (-2 , 4) and slope (m) = 2
The equation of line is given
y - y1 = m ( x - x1)
y - 4 = 2 ( x +2)
y - 4 = 2x + 4
2x + 4 + 4-y = 0
2x - y + 8 = 0
Which is the required equation