The sum of two numbers is 18, 5 times the number subtracted from 4 over 7 of the second number is 14 find the number

First number x = -0.6

Second number y = 18.66

Step-by-step explanation:

Let the first number = x

and Second number = y

Sum of two numbers is 18. We can write it in mathematical expression as:

5 times the number subtracted from 4 over 7 of the second number is 14. We can write it in mathematical expression as:

So, solving the equations simultaneously we can find value of x and y

Let:

Finding value of x from equation 1 and put it in eq(2)

Put in equation 2

So, Value of y= 18.66

Now finding value of x, By putting value of y in eq(1)

So, First number x = -0.6

Second number y = 18.66

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!