Use the multiplier method to increase £258 by 43%
You must show your working.

£368.94

Step-by-step explanation:

43% * 258 = 110.94

(£110.94 is 43% of £258)

258 + 110.94 = 368.94

= £368.94

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15