Answer:
R=-13
Step-by-step explanation:
S=-1-r/5-2
4=-1-r/3
Cross multiply
4*3=-1-r
12=-1-r
Collect like terms
12+1=-r
-r=13
Divide both sides by -
r=-13
Answer:
4
Step-by-step explanation:
Substitute: 
Cross out the common factor: 
Calculate the product or quotient: 
Calculate the product or quotient: 
Calculate the sum or difference: 
Cross out the common factor: 
Answer:
Answer:
<h2>
$400</h2>
Step-by-step explanation:
Using the formula for calculating the simple interest expressed as;
Simple Interest = Principal * rate * time/100
Note that the principal is the amount he originally borrowed
I = PRT/100 ............ 1
Amount paid off A = Principal+Interest
A = P+I ............ 2
From equation 2; I = A-P......... 3
Substitute equation 3 into 1;
A-P = PRT/100
Given A = $440, R = 10%, Time = 1year
Substitute the given parameters into the resulting equation;
440 - P = P*10*1/100
440-P = 10P/100
440-P = 0.1P
440 = 0.1P+P
440 = 1.1P
Divide through by 1.1;
1.1P/1.1 = 440/1.1
P = $400
<em>Hence the amount Mr Noel originally borrow is $400</em>
Answer:
Your answer would be
- 2/25 x^3a^3
Or vice versa with the variables
- 2/25 a^3x^3
TO solve it’s pretty simple if you do it correctly.
So with all the variables in the two multiples, you can find a way to combine them
So ignoring everything else you’d get
a^2x * x^2a
You we can see the difference,
theres a^2 and a
Whilst there is also x^2 and x
Now we can combine them
a^3 x^3
Now we can do the normal multipacation with the fraction
2/5 * - 1/5 which is -2/25
Now combine
ANd you got it :D
Answer:
9
Step-by-step explanation:
We can set up a systems of equations to find the value of the third side.
Let's assume that 
is the length of both sides 1 and 2. Let's also assume that 
is the length of the third side.
We know that 
, and looking at the first clue we can make the equation 
.
We can substitute y into the equation .
So the length of the side that is the same as the second is 7.
Now we can plug this into the equation to find .
Hope this helped!
