Substitution method is one of the ways to solve this system.
-5x+y=4 and 4x-4y=16.
First we will divide the second equation with number 4 and get
x-y=4 => x=y+4 than we will replace x in the first equation
-5(y+4)+y=4 => -5y-20+y=4 => -4y=4+20 => -4y=24 => y=-6
x-(-6))=4 => x+6=4 => x=4-6=-2 (x,y)=(-2,-6)
Good luck!!!
Answer:
-14p^3+10p^2+4p = 2p (-7p^2+5p+2)
Step-by-step explanation:
-14p^3+10p^2+4p
14=2*7
10=2*5
4=2*2
-14p^3+10p^2+4p = -2*7p^3+2*5p^2+2*2p
The gratest common factor is 2p:
-14p^3+10p^2+4p = 2p [-2*7p^3/(2p)+2*5p^2/(2p)+2*2p/(2p)]
-14p^3+10p^2+4p = 2p [-7p^(3-1)+5p^(2-1)+2]
-14p^3+10p^2+4p = 2p (-7p^2+5p^1+2)
-14p^3+10p^2+4p = 2p (-7p^2+5p+2)
The sum of 38 and twice a number x is 124. The value of "x" is 43
- 2x - 5 is equal to – 91.
<u>Solution:</u>
Given that , The sum of 38 and twice a number x is 124.
We have to find what is - 2x - 5?
Now, according to given information, 38 + 2 × x = 124
2x + 38 = 124
2x = 124 – 38
2x = 86
x = 43
So, the value of x is 43
<em><u>Now, Evaluating - 2x – 5 </u></em>
Substitute "x" = 43 to evaluate
- 2(43) – 5
- 86 – 5 = - 91
Hence, the required answer is – 91.
Answer:
(a) $60 | (b) $660
Step-by-step explanation:
We can use the simple interest formula for this:
<em>I = interest amount</em>
<em>P = principal amount</em>
<em>r = interest rate (decimal form)</em>
<em>t = time (years)</em>
<em />
First, change 5% into its decimal form:
5% -> 
-> 0.05
Next, plug in the values into the equation:
<em>The interest earned is $60. To find the total balance, just add the $600 back.</em>
The total interest earned is $60 and the total is $660.
Answer:
no it is not an integer
Step-by-step explanation:
nope.
Integers are whole numbers that are not fractions.
this is not the case in -22.96 as the decimal 0.96 constitutes the faction component of the number
