I am assuming it is a system of equations and that you need to find x and y
-x-7y=14 so -x=14+7y, x=-7y-14
-4x-14y=28 substitute x ,
-4(-7y-14)-14y=28,
28y+56-14y=28,
14y=28-56
y= -28/14= -2
<span> x=-7y-14= -7(-2)-14=14-14=0
x=0 and y= -2</span>
Answer:
Step-by-step explanation:
the length is 16 units
Answer:
you might want to do more reseearch but to me it looks like c
Yes, all square roots of non square numbers are irrational. That means that the sqrt of a whole number will never be a fraction, but always an irrational number or an integer.
Second question, not entirely sure who "it" is...
The divisors of 2205 are: 1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205.
Trying them out small to large:
√(2205/3) = <span>
27,11088...</span> irrational
√(2205/5) = 21 rational!
So 5 is a divisor because 5*441 = 2205. Also √441=21 and 21 is rational.
Answer:
17%, or $25.50
Step-by-step explanation:
If Ricardo has already saved 83% of the money, then he needs to save 17% more, because 83% + 17% = 100%
So what you need to do to figure out the answer is to find out 17% of $150
You first have to convert 17% into decimal form which is 0.17.
Then, you multiply 0.17 × 150 = 25.5
Ricardo needs $25.50 to buy the skateboard.
Hope this helped.