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3 years ago

Help pls 15 points!!

Mathematics

1 answer:

Minchanka [31]3 years ago

6 0

Answer:

i think its num 4

Step-by-step explanation:

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Help asapppppppppp!!!!!!!!

Illusion [34]

Answer:

Step-by-step explanation:

Answers only, no estimates:

1.) 15/32

2.) 2

3.) 32

7 0

4 years ago

What is the gcf of the numerator and denominator of the rational expression

Roman55 [17]

$\frac{3x-15}{x^2-x-20} = \frac{3(x-5)}{(x+4)(x-5)}$

The only common factor is (x -5).

Selection A is appropriate.

5 0

3 years ago

A painting measures b meters by 4 meters. a frame shop charges $10 per meter for a wooden frame. how much would it cost to buy a

hammer [34]

$ (20b + 80) is the cost to buy a frame for the panting given that measures b meters by 4 meters and charges $10 per meter for a wooden frame. This can be obtained by finding the perimeter of the painting and multiplying with the cost of wood per meter.

<h3>What is the cost of buying a frame for the painting?</h3>

Given that,

length of the painting (l) = b meters

width of the painting (b) = 4 meters

Perimeter of the painting = 2(l+b)

= 2(b+4)

= 2b + 8

Cost of the frame = (2b + 8)× $10 per meter

= $ (20b + 80)

Hence $ (20b + 80) is the cost to buy a frame for the panting given that measures b meters by 4 meters and charges $10 per meter for a wooden frame.

Learn more about finding cost of frame:

brainly.com/question/16757070

#SPJ4

4 0

2 years ago

A) (7 + 8) - (5 + 9) + 4(2 + 5) =

valkas [14]

I think 41 is correct answer

Step-by-step explanation:

(7+8)-(5+9)+4(2+5)

=15-14+4(10)

=1+40

=41

3 0

3 years ago

A movie theater charges 8 dollars for adults and 4 dollars for seniors. On a particular day when 353 people paid an admission, t

sammy [17]

A movie theater charges 8 dollars for adults and 4 dollars for seniors. On a particular day when 353 people paid an admission, the total receipts were 1688 dollars. How many who paid were adults? . How many who paid were seniors?

Answer:

There were 69 adults and 284 seniors

Solution:

Let "a" be the number of adults

Let "s" be the number of seniors

Cost of 1 adult = $ 8

Cost of 1 senior = $ 4

On a particular day when 353 people paid an admission

Therefore,

number of adults + number of seniors = 353

a + s = 353

a = 353 - s ---------- eqn 1

The total receipts were 1688 dollars

Therefore, we frame a equation as:

number of adults x Cost of 1 adult + number of seniors x Cost of 1 senior = 1688

$a \times 8 + s \times 4 = 1688$

8a + 4s = 1688 ---------- eqn 2

Let us solve eqn 1 and eqn 2

Substitute eqn 1 in eqn 2

8(353 - s) + 4s = 1688

2824 -8s + 4s = 1688

4s = 2824 - 1688

4s = 1136

Substitute s = 284 in eqn 1

a = 353 - 284

Thus there were 69 adults and 284 seniors in movie theater

7 0

3 years ago