how many pounds of gravel that cost $2.50 per pound must be mixed with 6 pounds of cement that cost $1.50 per pound to make a mixture that cost $2.50 per pound?

Answer:

(25 * 5.5) + (x * 2.9) + [(25 - x) * 4.4] = 50 * 4.5

Step-by-step explanation:

0.5 * 50Lbs. = 25 Lbs.

12.5 Lbs

12.5 Lbs.

Answer:

(25 * 5.5) + (x * 2.9) + [(25 - x) * 4.4] = 50 * 4.5

Two equations are given below:

a − 3b = 4
a = b − 2

help plz i will give brainliest to right answer (ok if u tried) ( DONT STEALL MY POINTS U LIL)
What is the solution to the set of equations in the form (a, b)?

(−2, −2)
(−3, −1)
(−9, −7)
(−5, −3)

Anita, Quentin, and Maria are baking cookies together. They need 3/4 cup and 1/3 cup of butter to make a dozen cookies. They each brought the ingredients they had home . Anita brought 2 cups of flour and 1/4 cup of butter, Quentin brought 1 cup of flour and 1/2 cup of butter, and Maria brought 1 1/4 cups of flower and 3/4 of butter. How many whole batches of a dozen cookies can they make?

Two equations are given below:

a − 3b = 4
a = b − 2

What is the solution to the set of equations in the form (a, b)?

(−2, −2)
(−3, −1)
(−9, −7)
(−5, −3)

A family eats at a restaurant. The bill is $42. The family leaves a tip and spends $49.77.
How much was the top in dollars?

HELP! BRAINLEST IF STEP BY STEP SO I CAN UNDERSTAND