The inequality becomes :
350B+525F≤4500
Explanation:
Let the number of basil plants be represented by = B
Let the number of fennel plants be represented by = F
As each basil plant needs 350 ml of water, so B basil plants will need 350*B = 350B ml of water
Similarly, each fennel plant needs 525 ml of water so F fennel plants will need 525*F = 525F ml of water.
And both the plants need to be watered with a maximum of 4500 ml of water.
So inequality becomes: 350B+525F≤4500
There are 5 solutions for this system.
x^2 + 4y^2 = 100 ____1
4y - x^2 = -20 ____2
Add both 1 & 2 together. x^2 gets cancelled
4y^2 + 4y = 80 (send 80 to the other side and divide by 4)
Then equation the becomes : y^2 + y -20 =0
Now factorise the equation: (y+5) (y-4) = 0
Solve for y : y = -5 and y = 4
Using the values of y to find the values of x. From equation 1:
x^2 = 100 - 4y^2 x = /100 - 4y^2 (/ means square root) Replace values of y
y = -5, x = /100 - 4(-5)^2 = /100 - 100 = 0
y = 4, x = /100 - 4(4)^2 = / 100 - 64 = /36 = -6 or 6
Thus we have 6 solutions y = -5, 4 and x = -6, 0, 6
Answer:
distance = 5
Step-by-step explanation:
Use Pythagorean Theorem or Distance Formula (which comes from Pythagorean Thm anyway) see image.
Answer:
the distance is 10
Step-by-step explanation:
-5,2 to 0,0 is 5
and the refection of -5,2 is 5,2
5,2 to 0,0. is also 5
5+5=10
Answer:
She spent $160 total
Step-by-step explanation:
(5 × 20) + (3 × 20) Multiply in the parentheses first
100 + 60 Add
$160 total
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