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slega [8]
3 years ago
8

Plz give answer i gives brainalst

Mathematics
1 answer:
Setler [38]3 years ago
6 0

Answer:

28

Step-by-step explanation:

54 - 26 = 28

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What is the efficiency of a machine that produces 4500 joules of output work for every 4250 joules of input work? (remember to p
rewona [7]

Answer:

105.88%

Step-by-step explanation:

Efficiency:

Output/input × 100

4500/4250 × 100

105.8823529%

4 0
4 years ago
Each side of a square calendar is 19 inches long. What is the calendar's perimeter?
liberstina [14]

Answer:

a square has 4 sides each of those sides is 19in long perimeter is all around the square so you would add 19+19+19+19=79in

6 0
3 years ago
Read 2 more answers
3
katovenus [111]

Question is Incomplete, Complete question is given below.

Mr. Jablonski's class is making fudge for a bake sale. Mr. Jablonski

has a recipe that makes 3/4 pound of fudge. There are 21 students in

the class. Each student uses the recipe to make one batch of fudge.

How many pounds of fudge do the students make?

Answer:

student made \frac{63}{4} \ lbs \ OR \ 15 \frac{3}{4}\ lbs \ OR \ 15.75\ lbs of fudge.

Step-by-step explanation:

Given:

Mr. Jablonski  recipe makes 3/4 pound of fudge.

Number of student in class = 21 students.

Each student uses the recipe to make one batch of fudge.

Hence to calculate Total amount of fudge student made we will multiply the amount of fudge used in recipe with Number of students.

Total amount of fudge student made = amount of fudge used in recipe × Number of students.

Total amount of fudge student made = \frac{3}{4}\times21 = \frac{63}{4} \ lbs =15 \frac{3}{4}\ lbs = 15.75\ lbs

Hence the student made \frac{63}{4} \ lbs \ OR \ 15 \frac{3}{4}\ lbs \ OR \ 15.75\ lbs of fudge.

8 0
3 years ago
tim can run three miles in 20 minutes if he maintain his speed how long will it take him to run 9 miles
Arlecino [84]

Answer:

60 minutes or 1 hour

Step-by-step explanation:

My picture is my worked out solution :)

5 0
4 years ago
Erika is painting a rectangular painting. The painting has a length of 12 and a width of 10 inches. Use the Distributive Propert
antiseptic1488 [7]

Given:

Length of the painting = 12 inches

Width of the painting = 10 inches

To find:

The area of the rectangular painting by using Distributive Property to decompose the factor 12.

Solution:

The area of a rectangle is

A=length\times width

So, the area of the rectangular paining is

A=12\times 10

Using Distributive Property to decompose the factor 12, we get

A=(10+2)\times 10

A=(10\times 10)+(2\times 10)

A=100+20

A=120

Therefore, the area of the rectangular painting is 120 square inches.

4 0
3 years ago
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