Answer:
5
Step-by-step explanation:
x values are equal, so 9-4 = 5
<span>x = {-4, 4}
</span>
<span>Divide each side by '5'.
x2 = 16
Simplifying
x2 = 16
Take the square root of each side:
x = {-4, 4}</span>
Answer:
320
Step-by-step explanation:
if he received 10 less than half then you would just have to add that 10 back and multiply by 2.
150+10=160*2=320
Let x be the number of new laptops and y be the number of tablets that
the company should buy. The equations that best show the given
conditions are as follows,
x + y = 30
515x + 285y = 11080
Solving simultaneously for the values of x and y gives an answer of x = 11 and y = 19.
Thus, the business should buy 11 laptops and 19 tablets.
