Answer:
£30
Step-by-step explanation:
Let Brian initially had money in his wallet = £x
and Colin had the money = £y
Since ratio of money in Brian's wallet to Colin's wallet was 5 : 1
Therefore,
⇒ x = 5y -------(1)
Brian spent £27 that day, so money left with him = £(x - 27)
After spending the money Brian had £3 less than Colin.
(x - 27) = (y - 3)
x = y + 27 - 3
x = y + 24 -------(2)
Now we equate the equations (1) and (2) for the value of x,
5y = y + 24
5y - y = 24
4y = 24
y = £6
From equation (2),
x = 6 + 24
x = £30
Therefore, Brian initially had £30.
i hope this helps
Answer:
x=6.111....
Step-by-step explanation:
x-5=0.1(x+5)
distribute 0.1 into (x+5)
x-5=0.1x+0.5
subtract 0.1x on both sides
x-0.1x-5=0.5
combine like terms
0.9x-5=0.5
add -5 on both sides
0.9x=5.5
divide both sides by 0.9
x=55/9 or 6.11111.......
hope this helps
Answer:
Step-by-step explanation:
d^4-81
(d^2)^2-(9)^2
Using formula
(d^2+9)(d^2-9)
SAS because If two angles and the included side of one triangle are congruent to the corresponding parts of another triangle, the triangles are congruent.
Area of a circle is πr².
Therefore we can get the radius of the great circle (and thus the sphere) by doing √(A / <span>π).
</span>
√(28.6 / <span>π) = 3.017 to 3DP.
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Surface area of a sphere is 4πr².
4<span>π(3.017)</span>² = 114.4 to 1DP
