Answer:
see steps
Step-by-step explanation:
New price was increase from 100% to 109% at £1800.
By proportionality,
old price / 100% = 1800 / 109%
Cross multiply to get
old price = $1800 * 100% / 109% = £1651.38
Answer:
how much money did they have ?
Step-by-step explanation:
X goes first then y meaning the first number will be x and the second would be y
<u>Start from 7, then add 5 each time.</u>
a7 is 7 plus 30, or <u>37.</u>
Step-by-step explanation:
Hi there,
The sum of two numbers is 8.
x + y = 8
If three times the first number
is equal to the second number.
3x = y
Replace the y in top equation with 3x
x + 3x = 8
4x = 8
x = 2
Substitute x = 2 in first equation
x + y = 8
2 + y = 8
y = 8 - 2
y = 6
{2,6}
Hope this helps :-)
