On a farm, the ratio of horses to cows is 2: 3. if there are a total of 100 animals, how many were horses?

The number of horses is 40

Solution:

Given that on a farm the ratio of horses to cows is 2 : 3

To find: Number of horses

From given ratio,

number of horses : number of cows = 2 : 3

Let the number of horses be 2x

Let the number of cows be 3x

Given that there are total of 100 animals

Therefore,

number of horses + number of cows = 100

2x + 3x = 100

5x = 100

x = 20

Therefore, number of horses = 2x = 2(20) = 40

Thus there are 40 horses

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true