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vlabodo [156]
3 years ago
5

I need help on 21 can you please show your work

Mathematics
1 answer:
Oksanka [162]3 years ago
5 0
Start with stating the numerators

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Complete the coordinate table for the given equation. xy = 12
Flura [38]

Answer:


Step-by-step explanation:

Given is an equation in xy as xy =12

WE are to complete the coordinate table for xy =12

Let us give different values for x and find corresponding values of y

y=\frac{12}{x}

Note that x or y cannot equal 0 in this

So let us give other values

x y

12 1

6 2

4 3

3 4

2 6

1 12

-1 -12

-2 -6

-3 -4

-4 -3

-5 -2.4

-6 -2

-12 -1


7 0
3 years ago
Beach Cruises prints brochures and fliers to advertise their dolphin watching tours. To print, the brochure requires three pages
Ivanshal [37]

Answer:

To minimize their costs, Beach Cruises should print 80 brochures and 130 fliers.

Step-by-step explanation:

Total number of sheets available = 500 sheets

For brochures;

1 brochure contains 3 pages

Minimum number of brochures that should be printed = 80

Cost of 1 brochure = 10 cents

Number of sheets required to print 80 brochures = 80 × 3 = 240 sheets

For fliers;

1 flier contains 2 pages

Minimum number of fliers to be printed = 100

cost of 1 flier = 6 cents

Number of sheets required to print 100 fliers = 100 × 2 = 200 sheets

Total number of sheets that will be used to print at least 80 brochures and 100 fliers = 240 + 200 = 440 sheets

number of sheets left = 500 - 440 = 60 sheets

After Beach cruises have printed the minimum required 80 brochures and 100 fliers, they are left with 60 free sheets of paper.

Since it is cheaper for Beach cruises to print fliers (at 6 cent per flier) than brochures (at 10 cent per brochure), then it is advisable to use the remaining 60 sheets to print fliers, so as to minimize costs.

Since 1 flier contains 2 pages,

with 60 sheets, the number of fliers that can be printed = 60/2 = 30 fliers

cost of 30 fliers = 30 × 6 cents = 180 cents

If the remaining 60 sheets are used to print brochures;

1 brochure has 3 pages,

therefore number of brochures to be printed = 60/3 = 20 brochures

cost of 20 brochures = 20 × 10 cents = 200 cents

This is why it is cheaper to print extra fliers at 180 cents.

Therefore total number of prints will be;

Brochures = 80

Fliers = 100 + 30 =130

3 0
3 years ago
Please help with all 3 questions.
mixas84 [53]

Answer:

1. *2/multiplied by 2, since each number gets higher by *2.

2. *3/multiplied by 3, since each number gets higher by *3

3. ÷2/divided by 2, since each number gets lower by ÷2.

5 0
2 years ago
What is the decimal form of -4 7/8
svetlana [45]
-4\frac{7}{8}=-4\frac{7\cdot125}{8\cdot125}=-4\frac{875}{1000}=\boxed{-4.875}
4 0
3 years ago
I NEED TO HAND IN NOW!!!
umka21 [38]

Step-by-step explanation:

a)

total no. of pupils is not more than 24

therefore first equation is

(x+y) ≤ 24. ....(1)

No. of girls exceeding the no. of boys by atleast 4

(y-x) ≥ 4. .....(2)

b) Now Liza chooses 8 boys

Maximum no. of girls = ?

Using first inequality

y+8= 24 ( maximum value of less than or equal to function is equal to itself)

Therefore,

y= 24-8

=16

Minimum no. of girls = ?

Using second inequality

y-8 =4 (minimum value of greater than or equal to function is equal to itself)

Therefore,

y= 4+8

y=12

Answer:

a) 2linear inequalities

(x+y) ≤ 24

(y-x) ≥ 4

b) Max no. of girls = 16

Min no. of girls = 12

Hope it helps...

5 0
3 years ago
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