Cost of lack increased by 30%

new cost of lack will be = 100% + 30% = 130%

We are given that new cost = £65

Thus 130% of original cost = 65

100% of original cost = 65 × 100/130 = £50

Thus original price was £50

7 0

3 years ago

The selling price of the Robertsons family house dropped from $500,000 to $250,000. What was the percent decrease in the value o

Alexus [3.1K]

Answer:

50%

Step-by-step explanation:

You can literally do it mentally lol

$500,000

- <u>$250,000</u>

$250,000

so by common sense, it's 50%

Hope it helped!

5 0

2 years ago

Read 2 more answers

Help as soon as possible real answers only please

ankoles [38]

Answer:

I believe the answer is B.Good luck!

3 0

2 years ago

Y varies directly as x when x= 3 and y =12 find y when x =12

andrew-mc [135]

$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\textit{we know that }
\begin{cases}
x=3\\
y=12
\end{cases}\implies 12=k3\implies \cfrac{12}{3}=k\implies 4=k
\\\\\\
thus\qquad \boxed{y=4x}
\\\\\\
\textit{when x = 12, what is \underline{y}?}\qquad \qquad y=4(12)$

3 0

3 years ago