If 3/5 of a number is 18, that means that 1/5 is 6 as 18/3 = 6. Since 1/5 is equal to 2/10. 1/10 of the number = 3. 7/10 of the number is 3*7 which is 21.
27 i believe
you would substitute y with 0 to find x then you would put 9 in for x to find y then you would go back to the first equation and put -19 in for y and then solve for x and get 27
Answer:
Step-by-step explanation:
10^9 x 0.007
Well, there are 100 pennies in a dollar, and 10 dimes in a dollar. So, the ratio could be 10:100, or 1:10.
Answer:
negative 4
Step-by-step explanation:
