What is the solution of square root x-4 plus 5 =2

√(x -4) + 5 = 2

Note the equal sign. What you do to one side, you do to the other. Do the opposite of PEMDAS.

First, subtract 5 from both sides

√(x -4) + 5 (-5) = 2 (-5)

√(x -4) = 2 - 5

√(x -4) = -3

Next, get rid of the root by squaring both sides

√(x -4)² = (-3)²

x - 4 = (-3)(-3)

x -4 = 9

Finally, isolate the x by adding 4 to both sides

x - 4 (+4) = 9 (+4)

x = 9 + 4

x = 13

13 is your answer

hope this helps

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500