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Trava [24]
3 years ago
9

Question attached Simultaneous equations

Mathematics
1 answer:
Setler79 [48]3 years ago
7 0

Answer:

9 spoons knives =12

9 spoons cost= £ 82.80

total no of 1 knife = 12x9 = 108

1 knife = 82.80 x 108 = 8,94, 240

so, 1 knife Cost's =£ 8,94,240

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Complete the equation of the line through (6,-6) and (8,8)
melomori [17]
General formula to determine the equation of the line
y - y₁ = m(x - x₁)
(x₁,y₁) is one of the points which lies n the line
m represents the slope

Find the slope
Given:
(x₁,y₁) = (6,-6)
(x₂,y₂) = (8,8)

We could find the slope by using this formula
m = \dfrac{ y_{2} -y_{1} }{ x_{2} -x_{1} }

Plug in the numbers
m = \dfrac{ y_{2} -y_{1} }{ x_{2} -x_{1} }
m = \dfrac{8-(-6)}{8-6}
m = \dfrac{14}{ 2 }
m = 7
The slope is 7

Determine the line equation
Plug one of the points (you could choose any of points given from the question) and the slope to the formula of line equation
y - y₁ = m(x - x₁)
y - (-6) = 7(x - 6)
y + 6 = 7x - 42
y = 7x - 42 - 6
y = 7x - 48
<em>This is the equation of the line</em>
3 0
3 years ago
Margie's car can go 32 miles on a gallon of gas, and gas currently costs 4 per gallon. How many miles can Margie drive on $20 wo
Soloha48 [4]
What you do is 20 divided by 4, which is 5. So then you times 32 by 5 and that's how you get 160.
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Cora bought a package of erasers. There
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If I’m not mistaken, I believe that it is 4:12
8 0
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Answer:

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I know because I did this problem a few years ago

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ira [324]

Answer:

26/15

Step-by-step explanation:

See attached image.

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