The grocer wants to make a 10 pound mixture
p - pounds of peanuts
c - pounds of cashews
therefore the total pounds should be equal to 10 pounds
p + c = 10 -----> 1)
the cost for ;
peanuts - 4.00 per pound * p pounds = 4p
cashews - 6.50 per pound * c pounds = 6.5c
the price of 10 pounds mixture = 4.75 per pound * 10 pounds = 47.5
4p+6.5c = 47.5 ---> 2)
to solve for p and c lets use simultaneous equations
p + c = 10 -----> 1)
4p+6.5c = 47.5 ---> 2)
multiply 1st equation by 4
4p + 4c = 40 ---> 3)
subtract 3rd equation from the 2nd
2.5c = 7.5
c = 3
substituting c= 3 in 1st equation
p+c = 10
p+3 = 10
p = 7
therefore 3 pounds of cashews and 7 pounds of peanuts are needed to make the mixture
It is 12 that is ur answer
Answer:
x = -3
Step-by-step explanation:
2/3x + 4 = 2
2/3x = 2 - 4
2/3x = -2
2x = -2 * 3
2x = -6
x = -6/2
x = -3
Answer:
6x^2-7x-20
Step-by-step explanation:
Use the FOIL method: (a+b)(c+d)= ac+ad+bc+bd
6x^2-15x+8x-20
Collect like terms:
6x^2+(-15x+8x)-20
Simplify:
6x^2-7x-20
The answer:
solve for x does mean, finding the value of x
as we see in the figure, the first step to find such a value is equalizing <span>3x-8 to
</span><span>2x+23, that is possible because the right angle was bisected by a line, so the value of each angle must be equal.
to find x, </span>3x-8 = 2x+23 , equivalent to 3x - 2x =23 +8 = 31
x =31°
finally
the steps are true, 1, 2 and 3
