myopicrat myopicrat
  • 18-05-2021
  • Mathematics
contestada

I need help with these I forgot how to solve them​

I need help with these I forgot how to solve them class=

Respuesta :

YucksFath
YucksFath YucksFath
  • 18-05-2021

Step-by-step explanation:

if x = 7 and y = 4

a) x + 2y

= 7 + 2 . 4

= 7 + 8

= 15

b) (2x - y)/5

= (2 . 7 - 4)/5

= (14 - 4)/5

= 10/5

= 2

#CMIIW

Answer Link
davisvictoria85
davisvictoria85 davisvictoria85
  • 18-05-2021

Answer:

The first equation is 15 and the second equation is 2.

Step-by-step explanation:

You have to use substitution. For the first equation it would be: 7 + 2(4),which is 7 + 8,which is 15. For the second equation it would be: 2(7) - 4 divided by 5,which is also 14 - 4 divided by 5,which is 10/5, which is 2.

Answer Link

Otras preguntas

what is the road not taken?
Write the expressions 3m -4n -8 as a sum. how does this help you identify the terms of the expression? identified the terms.
Find an equation of a line that comes close to the points listed in the table. X|y 6|8 10|13 12|15 16|18 18|21
what does 'cutting off the nose to spite the face' mean?
Solve for x algebraically; (2/3x)+(4/x)=(7/(x+1))
5 times the smaller number of two consecutive numbers is added to 3 times the bigger, the result is 579. find the smaller number
The perimeter of a basketball court is 114 meters and the length is 6 meters longer than twice the width. What are the length and the width?
what does it mean to be 'in the know'?
what does 'cutting off the nose to spite the face' mean?
Marks dad works in torontoit is 40 miles awayif he leaves work at 6:24pm at 43 mph what time home