Answer:
The two numbers are 4 and -4
Step-by-step explanation:
Turn the words into equations: let's assign one number to be x and the other to be y
x+8=y
x*y=-16
To solve, substitute the value of y in the first equation into y in the second equation.
This gives x*(x+8)=-16
Simplifying gives x^2+8x=-16
x^2+8x+16=0
(x+4)^2=0
x=-4
plug this value of x back into the first equation, -4+8=y, y is 4
Now to make sure the answer is correct: 4 is 8 more than -4, and 4*-4 does equal 16
Answer:
100% - 2% = 98%
Or 100% x 0.98 = 98%
100% - 30% = 70%
Or
100% x 0.7 = 70%
Answer : 0.98 & 0.7
Thus, any number/price multiplied by these decimal multipilers - automatically, will give you the decreased values of the original values.)
For example, a £300 bag is on a sale for 2% off, how much does it cost?
£300 x 0.98 = £294 (final price of the bag)
Hope this helps!
3x^2 / 4 = 48
Multiply both sides by 4 to get rid of the four on the left.
3x^2 = 192
Divide both sides by 3
x^2 = 64
The square root 64 to get x
Remember there are two answers
x = 8 and x = -8
0.1, then 12% and then 1/8
Answer:
0
Step-by-step explanation: the answer is zero because when you multiply anything by zero itll always be zero
