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Firlakuza [10]
3 years ago
5

Stuck, need help please.

Mathematics
1 answer:
Maurinko [17]3 years ago
7 0

Answer:

22.5 lbs

Step-by-step explanation:

First you find the cubic feet. That is the volume of the object which is length*width*height.

In your example, they are using inches. So you have to convert all units to feet. That would be 0.5 inches, 0.5 inches, and 5/3 inches. The volume would be 0.5*0.5*5/3 which is about 5/12 cubic feet

You then take that 5/12 cubic feet and multiply it by the 54 lbs/cubic foot. The answer would be 22.5 lbs

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Paolo paid $28 for a hat that was originally priced at $35. By what percent was the hat discounted?
svetoff [14.1K]
28*100=2800
2800÷35=80
80%
8 0
3 years ago
At a restaurant, three salads, two sandwiches, and one drink cost $17.75. One salad, one sandwich, and three drinks cost $10.75.
Leno4ka [110]

Answer:

A salad costs $2.50

A sandwich costs $4.50

A drink costs $1.25

Step-by-step explanation:

Let x represent the salad, y represent the sandwich, and z represent the drink.

Since three salads, two sandwiches, and one drink cost $17.75:

3x + 2y + z = 17.75  (1)

Since one salad, one sandwich, and three drinks cost $10.75:

x + y + 3z = 10.75  (2)

Since a salad costs twice as much as a drink:

x = 2z  (3)

Multiply the equation 2 by -2 then, sum the equation 1 and equation 2:

-2x - 2y - 6z = -21.50

3x + 2y + z = 17.75

→ x - 5z = -3.75

Replace the x with 2z using equation 3:

2z - 5z = -3.75

-3z = -3.75

z = 1.25

x = 2z → x = 2.50

x + y + 3z = 10.75 → 2.50 + y + 3.75 = 10.75 → y + 6.25 = 10.75 → y = 4.50

5 0
3 years ago
there are 24 students in a class.8 of the students are boys.write the amount of boys in the class as a fraction in its simplest
Shkiper50 [21]

Answer:

8/24 which is 1/3

Hope that helps:) Brainliest?? Feel free to ask me more questions



Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
To convert a distance of 12000 feet to miles which ratio could you multiply by?
Luba_88 [7]

Answer:

2.28 miles

Step-by-step explanation:

1 foot = 0.00019miles

12000 feet = x miles

Cross multiply

x = 12000 x 0.00019

x = 2.28 miles

5 0
3 years ago
Convert 56 grams to 2 ounces
Alexeev081 [22]

Answer:

its 2 ounces. if you look it up it would tell you

4 0
2 years ago
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