Omar changes 2000 Saudi Arabian Riyals into euros when the exchange rate is 1 euro to 5.087. Workout how much omar received giving your answer correct to the nearest euro

393.15 euros

Step-by-step explanation:

It is given that,

1 euro = 5.087 SAR

We need to find if Omar changes 2000 Saudi Arabian Riyals into euros what is its value.

1 SAR = (1/5.087) euros

2000 Saudi Arabian Riyals =

= 393.15 euros

So, 2000 Saudi Arabian Riyals is equal to 393.15 euros

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

80 the answer is 80

step-by-step explanation: