The sum of two numbers is -47 and their difference is one. Find the numbers. Separate with a comma.

let the numbers are x and y

if their sum is 30 and difference is 4

then

x+y=30     1equation

x-y=4          2equation

add both the equations,

2x=34

x=17

then

put the value of x in 1equation,

x+y=30

17+y=30

y=30-17

y=13

then,

first number is 17 and second number is 13

Other explanation: X+y=30 and x- y = 4 ( let x be considered the greater no)

By elimination method

X+y=30-1eq

X-y=4-2eq

2x=34(by adding eq 1 and 2)

X=17

Thus the no's are 17 and y=30-17=13

-23, -24

Step-by-step explanation:

Adding negative numbers gets you another negative number. Therefore the numbers must be -23 and -24.

1gm = 1000mg so 0.1gm = 1000mg

first, convert the weight to kg

160lb * 1kg/2.2lb = 72.7kg

next, the dose

72.7kg * 100mg/kg = 7270mg

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.