I don't understand how to do this
1 answer:
Hi!
The table above is showing how to plug in a variable to x. For an example,
when x= 4 would equal 17. How we would get this is substitute x with 4 and use our order of operations.
To get 68, we would do this in reverse. We would add 3 to both sides to eliminate the -3 to have a remainder of
Divide both sides by five to solve for x.
We can also check our math and plug in 17/5 into x
The table above is showing how to plug in a variable to x. For an example,
when x= 4 would equal 17. How we would get this is substitute x with 4 and use our order of operations.
To get 68, we would do this in reverse. We would add 3 to both sides to eliminate the -3 to have a remainder of
Divide both sides by five to solve for x.
We can also check our math and plug in 17/5 into x
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Let
x = the number of shorts bought
y = the number of t-shirts bought
A pair of shorts costs $16 and a t-shirt costs $10. Brandom has $100 to spend.
Therefore
16x + 10y ≤ 100
This may be written as
y ≤ - 1.6x + 10 (1)
Brandon wants at least 2 pairs of shorts. Therefore
x ≥ 2 (2)
Graph the equations y = -1.6x + 10 and x = 2.
The shaded region satisfies both inequalities.
Answer:
Two possible solutions are
(a) 3 pairs of shorts and 4 t-shirts,
(b) 4 pairs of shorts and 2 t-shirts.
x = the number of shorts bought
y = the number of t-shirts bought
A pair of shorts costs $16 and a t-shirt costs $10. Brandom has $100 to spend.
Therefore
16x + 10y ≤ 100
This may be written as
y ≤ - 1.6x + 10 (1)
Brandon wants at least 2 pairs of shorts. Therefore
x ≥ 2 (2)
Graph the equations y = -1.6x + 10 and x = 2.
The shaded region satisfies both inequalities.
Answer:
Two possible solutions are
(a) 3 pairs of shorts and 4 t-shirts,
(b) 4 pairs of shorts and 2 t-shirts.