Answer:
4 (-1-11) + 2 (17)
Answer 2 is -14
Step-by-step explanation:
Answer:
x=11
Step-by-step explanation:
start with
x-2=9
then write x-2=9 with +2 underneath both sides of the equal sign
then slash through the twos, and add two and nine to get x by itself.
Answer:
x=0.5
Step-by-step explanation:
hope it helped.
Answer:
90
Step-by-step explanation:
3 boys
5 girls,
Say that there where "x" number of groups like this, (x will be the total number of groups like this, if one were to divide the population by the number of groups, they would the number of students);
Set up an equation;
x ( 3 + 5 ) = 240
Combine like terms and distribute;
8x = 240
Inverse operations;
8x = 240
/8 /8
x = 30
Substitute back in to find the number of boys;
30 * 3 = 90
Answer:

Step-by-step explanation:
we have that

where
d is the distance in miles to the horizon
h is the height of the viewer’s eyes above the ground in feet
In this problem we have

substitute the value of h in the expression
