Answer:
1/4 or .25
Step-by-step explanation:
Answer: 90
Step-by-step explanation:
40 % = 0.40. X = number of pigeons. 0.4x =36
X = 36/0.4 = 90
Answer:
The distance between (9,1) to (1,8) is 3.26
Step-by-step explanation:
To solve this exercise we first have to calculate the distances between the factors of x and those of y
(x , y)
P1 = (9 , 1)
P2 = (1 , 8)
To calculate the distance we have to do P1 - P2
(9 , 1) - (1 , 8)
we subtract the corresponding from each other
9 - 1 = 8
1 - 8 = -7
(8 , -7)
Now that we have obtained these values, what we have to do is Pythagoras, since x represents a horizontal displacement, and y represents a vertical one, and the distance will be the hypotenuse that is formed from them.
h² = 8² + (-7)²
h² = 64 + 49
h² = 113
h = √113
h = 3.26
The distance between (9,1) to (1,8) is 3.26
Answer: 1 pigeon is $320
1 love bird is $80
Step-by-step explanation:
Let the cost for 1 love bird be represented by x
Let the cost for 1 pigeon be represented by y.
Since John bought 8 birds and 6 pigeons for $2400. This will be:
8x + 6y = 2400 ...... i
If he had bought 1 more pigeon and 2 fewer birds, he would have paid $200 more. This will be:
6x + 7y = 2600 ...... ii
8x + 6y = 2400 ...... i
6x + 7y = 2600 ...... ii
Multiply equation i by 6
Multiply equation ii by 8
48x + 36y = 14400 ...... iii
48x + 56y = 20800 ...... iv
Subtract iii from iv
20y = 6400
y = 6400/20
y = 320
1 pigeon is $320
From equation i
8x + 6y = 2400
8x + 6(320) = 2400
8x + 1920 = 2400
8x = 2400 - 1920
8x = 480
x = 480/8
x = 60
1 love bird is $80
Answer:
30x-15y
Step-by-step explanation:
5 * 6x = 30x
5 * -3y = -15y
