Answer:
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Step-by-step explanation:
Answer:
73 and 15
Step-by-step explanation:
I made two variables for this:
x = larger number
y = smaller number
Write an equation for "the sum of two number is 88" and you get:
x + y = 88
Write an equation for "four times the smaller number is subtracted from the larger number" and you get:
x - 4y = 13
I do not want an equation with both x and y in it, so I will rewrite the first one and use substitution in the second one:
x + y = 88 -- move the x to the other side
y = 88 - x
x - 4y = 13 -- substitute for y
x - 4(88 - x) = 13 -- multiply by 4
x - 352 + 4x = 13 -- move -352 to the other side, combine x's
5x = 365 -- divide by 5
x = 73
Now that I know x is 73, I go back to my first equation (x + y = 88) and I get:
73 + y = 88 -- subtract 73 from both sides
y = 88 - 73
y = 15
Answer: 6
Step-by-step explanation:
Answer:
Y = x y = kx. When the equation that describes direct variance is graphed in the Cartesian Plane, there is always a straight line moving through the origin. Think of it as the Slope-Intercept Shape of a line written as y = mx + b y = mx + b.
Step-by-step explanation:
Answer:
The algebraic expressions can be presents by words or equivalent expressions, so that its meaning remains same.
Step-by-step explanation:
Different ways to present algebraic expressions without changing their meaning:
1. We can describe the algebraic expressions in words so that its meaning remains same.
For example : 3x+y = Sum of 3 times of an unknown variables x and y.
2. We can describe the algebraic expressions in equivalent expressions, so that its meaning remains same.
For example : 6x+3y = 3(2x+y)
Therefore, the algebraic expressions can be presents by words or equivalent expressions, so that its meaning remains same.
