10. Find the value of 4x - y when x=-1 and y= 2
11.what is the value of (p+5q) if p=10 and q=.3​


Sagot :

Answer:

10. -6

11. 11.5

Step-by-step explanation:

10. Find the value of 4x - y when x=-1 and y= 2

=4(-1)-2

=-4-2

=-6

11.what is the value of (p+5q) if p=10 and q=.3

=(10+5(.3))

=(10+1.5)

=11.5

10.

4x - y

substitute -1 for x and 2 for y:

4 × ( -1) - 2

calculate the product:

-4 - 2

calculate the difference:

= -6

11.

p + 5q

substitute 10 for p and 0.3 for q:

10 + 5 × 0.3

multiply the numbers:

10 + 1.5

add the numbers:

= 11.5