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3 years ago

Please help with these three math questions!!!! I really need it

Mathematics

2 answers:

nikdorinn [45]3 years ago

4 0

1. is 9
and the other ones i dont really know

BARSIC [14]3 years ago

3 0

2. replace the x by 2 and work it out
= 7(2) - 5

3. that cost $7.50 each and $0.25 is taken off the cost of any number you perchasse

so it 0.75n - 0.25

4. Hint the second (y) values are obtained from the first (x) values by multiplying by 2

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9) Gabe has a 40¢-off coupon for any kind of popcorn. He can choose

Vadim26 [7]

Answer:

Per ounce better buy is Happy popcorn.

Step-by-step explanation:

Given that:

Happy popcorn price for 16 ounces = $1.39

Popper popcorn price for 34 ounces = $2.79

Discount coupon present with Gabe = 40 ¢ = $0.40

To find:

Which brand is the better buy per ounce?

Solution:

First of all, let us calculate the price that Gabe has to pay after the discount coupon being applied.

Price for 16 ounces of Happy popcorn after discount = $1.29 - $0.40 = $0.99

Price for 1 ounce of Happy popcorn after discount = $\frac{\$0.99}{16}$ = $0.062

Price for 34 ounces of Popper popcorn after discount = $2.79 - $0.40 = $2.39

Price for 1 ounce of Popper popcorn after discount = $\frac{\$2.39}{34}$ = $0.070

Clearly, per ounce price of Happy popcorn is lesser than that of Popper popcorn.

Therefore per ounce better buy is Happy popcorn.

6 0

2 years ago

Clara goes miniature golfing. She pays $7.50 for an admission ticket and $6.25 for each round she golfs. The total amount Clara

Nitella [24]

Answer:

26.25-7.50 = 18.75

18.75/6.25= 3

She golfed for 3 rounds

Step-by-step explanation:

5 0

2 years ago

What is three-fourths times a square of a number just write the equation

zavuch27 [327]

Answer:

3/4(x^2)

Step-by-step explanation:

........................

5 0

2 years ago

How to solve this equation

mariarad [96]

$\bf \sqrt{5x+19}-4=3x-15
\\\\
\sqrt{5x+19}=3x-15+4\\\\ \sqrt{5x+19}=3x-11\leftarrow \textit{square both sides}
\\\\
(\sqrt{5x+19})^2=(3x-11)^2
\\\\
5x+19=(3x-11)^2\qquad 
\begin{cases}
(3x-11)^2\to (3x-11)(3x-11)\\
 --------------\\
\textit{or use FOIL to expand it}
\end{cases}$

then solve for "x"

7 0

2 years ago

A scale drawing of a building is one foot to 1/4 inch what is the actual length of the building if the scale drawing shows that

abruzzese [7]

The length is 54 ft because 13.5 in. is equal to .25*54 so 1*54 would be your answer in feet.

3 0

3 years ago