3 years ago

A and b share the cost in a ratio of 3:2. the cost is £85 how much does A pay?

1 answer:

8 0

A pays 3/5 x 85 = £51,-
b pays 2/5 x 85= £34,-
So the answer is £51,-

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slega [8]

first, lets distribute the equation. 5(n^2+n)-3n(2n^2+4n-2) would become

5n^2 +5n -6n^3 -12n^2 +6n

Now we add the like terms.

-6n^3 - 7n^2 +11n

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3 years ago

andrew11 [14]

The length is 11.25 inches.

The width is 3.75 inches.

3 0

2 years ago

Charra [1.4K]

$4(2x+3)=2(3x+4) \\
8x+12=6x+8\\
2x=-4\\
x=-2 \Rightarrow A$

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3 years ago

schepotkina [342]

Let point C has coordinates $(x_C,y_C).$ Consider vectors

$\overrightarrow{AB}=(x_B-x_A,y_B-y_A)=(8-9,6-9)=(-1,-3),\\ \\\overrightarrow{BC}=(x_C-x_B,y_C-y_B)=(x_C-8,y_C-6).$

Since the ratio AB to BC is 1:4, you have that

$\dfrac{-1}{x_C-8}=\dfrac{1}{4}\quad \text{and}\quad \dfrac{-3}{y_C-6}=\dfrac{1}{4}.$

Find $x_C$ and $y_C:$

$x_C-8=-4,\\ \\x_C=-4+8=4,\\ \\y_C-6=-3\cdot 4=-12,\\ \\y_C=-12+6=-6.$

Answer: C(4,-6)

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3 years ago

evablogger [386]

I think the answer is 6 and 5 because 6+5=11 and 6-5=1

5 0

2 years ago