Answer:
x + y ≥ 4
8x + 10y ≤ 70
Step-by-step explanation:
1. State the variables
According to the graph, "Number of green towels" is on the x-axis, and "Number of blue towels" is on the y-axis, so:
let x be the number of green towels.
let y be the number of blue towels
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2. <u>Write an equation for the total number of towels</u>.
The sum of number of green towels and the number of blue towels is the total number of towels.
x + y ≥ 4
"She wants to buy at least 4 towels" means she needs 4 or more. Use the ≥ symbol instead of > (which would mean more than 4 towels, not only 4).
3. <u>Write an equation for the money</u> she will spend.
Multiply each variable by the cost of the towel colour. Add them together. Equate the total as 70 because she is only willing to spend 70.
8x + 10y ≤ 70
"She does not want to spend more than $70" means she is willing to spend 70, but no more. This is why we use ≤ and not < (which would mean she would not spend 70, only less than 70).
The equations are x + y ≥ 4 and 8x + 10y ≤ 70.
Answer:
polination ,germination
Step-by-step explanation:
Answer:
number 3
Step-by-step explanation:
Answer:
20 inches
Step-by-step explanation:
Since the cape is trapezoid shaped and has an area of 600 in², the area of a trapezoid is given by
A =1/2(a + b)h where a = length along the top of the cape = 24 in, b = length along the bottom of the cape = 36 in and h = height of the cape
So, h = 2A/(a + b)
= 2 × 600 in²/(24 in + 36 in)
= 1200 in²/60 in
= 20 in
So, the height of the cape is 20 inches
No solution because 0 cant be equal to 15