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DedPeter [7]
3 years ago
5

Liam is setting up folding chairs for a meeting. If he arranges the chairs in 4 rows of the same length, he has 3 chairs left ov

er. If he arranges the chairs in 2 rows of that same length, he has 19 left over. How many chairs does Liam have?
Mathematics
1 answer:
miskamm [114]3 years ago
6 0

Answer:

75 chairs

Step-by-step explanation:

1. 9x+3 : write equation

2. 7x+19 : write equation

3. 9x+3=7x+19 : make both equations equal to each other

4. 2x+3=19 : subtract 7x from both sides

5. 2x=16 : subtract 3 from both sides

6. 8 : divide 2 on both sides of the equal sign

7. 9(8)+3=75 : plug 8 into the equation

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HELP I REALLY NEED HELP
zepelin [54]

Answer: 72 inches squared

Step-by-step explanation:

So, the real floor of a classroom is 36 feet by 32 feet.

And the scale drawing, has length of the classroom equal to 9 inches.

What is the area in square inches of the floor in the scale drawing

1 foot = 12 inches

The length of the classroom, measured in feet, has been multiplied by 12, to get converted in inches. After that, it has been divided by a number, a proportion, to get to 9 inches.

36feet * 12 / x = 9 inches

432 inches / x = 9 inches

Now, to solve for x, we can cross-multiply

432 inches = 9x inches

Divide 9 inches on both sides.

x = 48

To solve the exercise, we need to calculate the floor's area in the scale drawing.

We have the length = 9 inches.

Now, let's calculate the width

Width = 32 feet * 12 / 48

Width = 384 inches / 48

Width = 8 inches

Area = Length * Width

Area = 9 inches * 8 inches

Area = 72 inches squared

Hope I helped!

6 0
2 years ago
Judy’s brother Sam has a collection of 96 comic books what are the 10 where is Sam could divide his comic books into equal group
sweet-ann [11.9K]

We have been given that Judy’s brother Sam has a collection of 96 comic books. We have been asked to find the 10 ways Sam could divide his comic books into equal groups.

This can be done as follows:

96 can be written as 2\times 48=48\times 2=96. Thus, we can either have 2 groups of 48 comics or 48 groups of 2 comics. As we can see we have 2 ways to divide the comic books in equal groups.

Likewise, 96 can also be written as 3\times 32=32\times 3=96. Here, we can similarly see that we can either have 3 groups of 32 comics or 32 groups of 3 comics. As we can again see we have 2 more ways to divide the comic books in equal groups, taking the total number of ways to 4.

Continuing in this manner we will see that we can have 4 groups of 24 or 24 groups of 4, 6 groups of 16 or 16 groups of 6 and lastly 12 groups of 8 or 8 groups of 12 comic books, thus taking the count to a <u>total of 10 ways</u> in which Sam can divide his comic books into equal groups.

Our question has been answered.

5 0
3 years ago
Please help. Determine whether mn is parallel to kl. And why it is parallel. Will reward 20 points
satela [25.4K]
It is not parallel. The fact that there is more space between the lines on one side than the other (mk is shorter than nL) shows that the lines must be angled differently, and thus, would eventually intersect.
7 0
3 years ago
Can someone help me with that pls​
Alex

Answer:

area = length x width or LW

Step-by-step explanation:

the answer is 6 1/15

4 0
3 years ago
What percent of 67 is 33 round to the nearest 10th
Darya [45]
<span>49.3% is what I got from a math solver site.</span>
6 0
4 years ago
Read 2 more answers
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