X - 29
where x is the number
When reflecting about the y axis, you x coordinate changes sign, so your answer would be D) (-2;-4)
The second answer is D) (the bottom right one)
Answer:
2:9
Step-by-step explanation:
there are 2 bananas.
the total amount of fruit is 9 because 2+4+3= 9.
the ratio is 2:9 because there are 2 bananas and 9 fruits in total.
2:9 cannot be simplified any smaller.
Answer:
and
Step-by-step explanation:
Given
10x - y = 53
y = -13x + 92/2
Required
Find x and y
The above system of equation represent simultaneous equation.
There are few ways of solving simultaneous equation; one of them is substitution method. We'll make use of the substitution method.
Rewrite equations
10x - y = 53 --------- Equation 1
y = -13x + 92/2 --------- Equation 2
Simplify equation 2
y = -13x + 92/2
y = -13x + 46
Substitute -13x + 46 for y in equation 1
10x - y = 53 becomes
10x - (-13x + 46) = 53
Open the bracket
10x + 13x - 46 = 53
Collect like terms
10x + 13x = 46 + 53
23x = 99
Divide both sides by 23
Recall that y = -13x + 46;
Substitute for x in the above expression
y = -13x + 46 becomes
Take LCM
The solution to the above set of equation is and