The correct answer is 3. A rock climber descends 14 feet.
Simplify the expression.
Exact Form
4/3
Decimal Form:
1.3
Mixed Number Form:
1 1/3
I think it’s 26.4
step-by-step explanation
Answer:
commercial = 9
movie = 5
Step-by-step explanation:
Step one:
let the number of commercials be x and movies be y
so
40x+130y=1010-------------1
since there are a total of 14 commercials and movies combined
x+y=14--------------2
Hence the systems of equation is
40x+130y=1010------1
x+y=14-------------------2
Step two:
from equation 2
x=14-y
substui]te the value of x in equation 1
40(14-y)+130y=1010
560-40y+130y=1010
collect like terms
130y-40y=1010-560
90y=450
divide both sides by 90
y=450/90
y=5
movies is 90
put y=5 in equation 2
x+5=14
x=14-5
x= 9
commercial is 9 in numbers
and movie is 5
Convert the 15 ft to inches (180) and then set up the proportion.
. Cross multiply to get that 12x = 180 and x = 15 inches.
