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Korvikt [17]
3 years ago
7

Determine which is the better buy. 7 kilograms of wood for $13.65 or 5 kilograms of wood for $7.50. What is the unit price for e

ach? Explain how you determined which one is the better buy. Get right, I'll give you brainliest
Mathematics
1 answer:
torisob [31]3 years ago
5 0

Answer:

The wood for 7.50!

Step-by-step explanation:

You are trying to find the unit rate in this situation!

It's simple, Cost ÷ Amount/Weight

13.65 ÷ 7 = 1.95

7.50 ÷ 5 = 1.50

Clearly, the wood for 7.50 is the better buy!

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A hovercraft takes off from a platform. It’s height (in meters), x seconds is modeled by h(x)=-(x-11)(x+3). What is the height o
Eddi Din [679]

Answer:

The height of the hovercraft at the time of takeoff is  33  meters.

Step-by-step explanation:

Height of hovercraft  x  seconds after takeoff  =  h(x)  =  -(x - 11)(x + 3)

Height after takeoff is  =  h(0)  =  -(0 - 11)(0 + 3)  =  -(-11)(3)  =  33

So the correct answer is 33 meters. The height of the hover craft at the time of the takeoff is 33 metres.

Answer: 33  meters.

<em><u></u></em>

<em><u>Please mark brainliest</u></em>

<em><u>Hope this helps</u></em>

6 0
3 years ago
Help me I need to graduate
Naily [24]

Answer:

(-2, 3)  

Step-by-step explanation:

A is translated from (5, 1) to A' at (6, -2).

That is, it moves <em>one unit to the right and three units down</em>.

B is also translated to B' one unit to the right and three units down to (-1, 0).

B must be <em>one unit to the left and three units above B'</em>.

Thus, the coordinates of B are (-2, 3).

The diagram below shows the translation of side AB of ∆ABC to its new location at A'B'.

5 0
3 years ago
Mona stopped at a gas station where the price per gallon was $2.80. She spent $14 to fill up her car. What equation would repres
alina1380 [7]

Answer:

A.) 5 x 2.80 B.) 100

Step-by-step explanation:

14/2.80=5 which is how many gallons

5 x 20 = 100 for the miles

8 0
3 years ago
Read 2 more answers
Q16. Find x^2 + 1/x^2 , if x + 1/x = 3
erica [24]

Answer:

2 \times  x \times \frac{1}{x}  =  2 \\  {x}^{2}   +  {y }^{2}  + 2xy =  {(x + y)}^{2} \\ {x}^{2}  +  \frac{1}{ {x}^{2} }  + 2 = {(x +  \frac{1}{x} })^{2}  =  {3}^{2}  = 9

8 0
3 years ago
Robert is looking to buy a deep fryer. He has narrowed his search down to two models. The following table gives the details of t
Zinaida [17]
The total cost for the entire life span of the deep fryer  is computed below:
Brand P total cost =Purchase price + total electricity cost 
                                = $144+($0.49x8x12x6)
                                =$426.24
Brand Q total cost =(Purchase price x 3)+ total electricity cost
                                =( $37.5x3)+($0.75x 8x12x6)
                                =   $544.5
Difference = Brand Q-Brand P
                   =$544.5-$426.24
                   =$118.26
Robert will have to choose Brand P because it will be cheaper by $118.26 than Brand Q in their entire lifetime.
                     
5 0
4 years ago
Read 2 more answers
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