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wel
3 years ago
14

!!!!!!PLZZZZ HELP!!!!!!!help noone is helping me at all!!!!!

Mathematics
2 answers:
krek1111 [17]3 years ago
8 0
Y = mX+ b
m is the slope (Y2-Y1)/(X2-X1)
b is y intercept
STALIN [3.7K]3 years ago
5 0
Y=mx+b
where m is the slope and b is the y intercept
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Which of the following is a situation in which an equation cannot be solved using the quadratic formula? A.) The coefficient of
yaroslaw [1]
I think it would be A) The coefficient of the x^2 term is zero.
7 0
2 years ago
What is the slope and y-intercept of problem R and L?
makvit [3.9K]

For R : m = 4 & b = 32

For L : m = 2 & b = 0

I hope this helps

4 0
3 years ago
Sue makes 50 litres of green paint by mixing litres of yellow paint and litres of blue paint in the ratio 1:4. Yellow paint is s
Lostsunrise [7]

Answer:

Sue's percentage profit = 9% on each tin of green paint she sells.

Step-by-step explanation:

Litres of green paints mixed = 50 litres

Ratio of litres of yellow paint and litres of blue paint = 1:4.

To determine the litres of yellow paint, we say:

yellow \: paint =  \frac{1}{4}  \times 50 = 10 \: litres

To determine the litres of blue paint, we say:

blue \: paint =  \frac{4}{5}  \times 50 = 40 \: litres

Since yellow paint is sold in 5 litres per tin and each tin cost £38; she has 10 litres of yellow paint in all. That implies that she has 10/5 = 2 tin of yellow paint. If one tin cost £38; 2 tin cost 2 × £38 = £76

Similarly,

Since blue paint is sold in 10 litres per tin and each tin cost £58; she has 40 litres of blue paint in all. That implies that she has 40/10 = 4 tin of blue paint. If one tin cost £58; 4 tin cost 4 × £58 = £232

Total cost of yellow and blue paints = £232 + £76

= £308

Since Sue sells all the green paint she makes in 10 litre tins at £89.32 per tin and she has 50 litres in all; we say: 50/10 litres = 5 tins = 5 × £89.32 = £446.60.

Thus, selling price of the green paint = £446.60

profit \: \% =  \frac{selling \: price - cost \: price}{cost \: price}  \times  \frac{100}{1}

profit \: \% =  \frac{446.60 - 308}{308}  \times  \frac{100}{1}

profit \: \% =  \frac{138.60}{308} \times  \frac{100}{1}

profit \: \% = 0.45 \times 100

profit \: \% = 45\%

Sue's percentage profit for selling all the tins of green paint is 45%, having sold 5 tins. Therefore, Sue's percentage profit for selling each of the paint will be:

profit \: \% \: on \: each \: green \: tin =  \frac{45}{5}  = 9\%

Hence, Sue's percentage profit for selling each tin of green paint is 9%.

Proof

9% × 5 tins of green paint = 45%

4 0
3 years ago
Which of these sets of points lie within plane w?
Dafna11 [192]
C and E your welcome
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The domain of the following relation is R:(-4,3),(3,6),(-2,1),(3,6) is
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The domain of a relation is always the set of the first coordinate of each pair,

\bf  R:(\stackrel{\downarrow }{-4},3),(\stackrel{\downarrow }{3},6),(\stackrel{\downarrow }{-2},1),(\stackrel{\downarrow }{3},6)
7 0
3 years ago
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