Answer:
The value of 11+x at x=12 will be 23.
Step-by-step explanation:
Given the expression
As we have to evaluate the expression at x=12
so substitute the value x=12 in the expression
Therefore, the value of 11+x at x=12 will be 23.
Answer:
there are 1250 readers
Step-by-step explanation:
r = readers
4 percent of readers sent letter = 50 recieved letters
r * 4 percent = 50
r * .04 =50
divide by .04 on each side
r = 50/.04
r =1250
Answer:
6
Step-by-step explanation:
I’m not entirely sure as why you would have to use RQ, but you could use the equation:
tan30=(PR)/45
Solving for PR, you can put 45tan30 into the calculator to get approximately 21.981 units.
Answer:
The two numbers are:
8 and 13
Step-by-step explanation:
a = 2b - 3 Eq. 1
a + b = 21 Eq. 2
Replacing Eq. 1 in Eq. 2:
(2b-3) + b = 21
3b - 3 = 21
3b = 21 + 3
3b = 24
b = 24/3
b = 8
from Eq. 1
a = 2*8 - 3
a = 16 - 3
a = 13
Check:
From Eq. 2:
a + b = 21
13 + 8 = 21
