By solving a system of equations, we will see that the width is 170ft and the length 275 ft.
<h3>
How to get the dimensions of the base?</h3>
For a rectangle of length x and width y, the perimeter is:
P = 2*(x + y).
Here we know that:
x = 2y - 65ft
p = 890ft = 2(x + y)
So we have a system of equations.
To solve this, we need to replace the first equation into the second one:
890ft = 2(x + y)
890ft = 2(( 2y - 65ft) + y)
Now we can solve this for y.
890ft = 4y - 130ft + 2y
890ft + 130ft = 6y
1020ft/6 = y = 170ft
So the width is 170ft, and we know that:
x = 2y - 65ft = 2*(170ft) - 65ft = 275ft
So the length is 275 ft.
If you want to learn more about systems of equations:
brainly.com/question/13729904
#SPJ1
21,500 this is the answer
Answer:
Small bag: £7.20 for 3 kg
Medium bag: £7.80 for 3 kg
Best value: small bag
Step-by-step explanation:
3 kg = 3000 g
Small bag: 60p/250 g = 0.24p/g
For 3000 g: 0.24p/g * 3000 g = £7.20
Medium bag: £1.30/500 g = 0.0026 £/g
For 3000 g: 0.0026 £/g * 3000 g = £7.80
Large bag:
For 3000 g: £7.50
Best value: small bag
The rate of change of y with respect to x is - 7 / 4
<h3>what is rate of change:</h3>
The rate of change is the rate at which one quantity changes in relation to another.
Therefore, the rate of change of y with respect to x is an evaluation of how much y changes per unit change in x.
Therefore,
let's use (9, 8) and (5, 15)
Rate of change = 15 - 8 / 5 - 9
Rate of change = 7 / - 4
Rate of change = - 7 /4
learn more on rate of change here: brainly.com/question/11883878