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Umnica [9.8K]
1 year ago
11

Alison is buying binders for school. Small binders cost $3 each, and large binders cost $5 each. If Alison needs to buy at least

12 binders and has no more than $45 to spend, what is the maximum number of large binders she can buy?
a. 4

b 5

c 8

d 9
Mathematics
2 answers:
prisoha [69]1 year ago
8 0

Answer:

4 large folders     ( and 8 small folders....with $ 1 left over)

Step-by-step explanation:

x = small    y = large folders

x+y >= 12      x >=<u> 12-y </u>

3x + 5y <= 45

3 (12-y) + 5y <=45

36 -3y + 5y <= 45

    y <= 4.5               you cannot buy .5 of a large folder, so <u>4 large folders</u>

Mariulka [41]1 year ago
4 0

Answer:

9

Step-by-step explanation:

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3 years ago
Help math homework both questions
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Answer:

Q-12 The vertical length of the top part of elevator to ground is 0.8484 meters .

Q -14 The glide runway path is 24,752.47 feet .

Step-by-step explanation:

Q - 12

Given as :

The diagonal length of the elevator = e = 1.2 meters

The vertical length of the top part of elevator to ground = x meters

The angle made by elevator with ground = Ф = 45°

<u>Now, According to figure</u>

Sin angle = \dfrac{\textrm perpendicular}{\textrm hypotenuse}

Or, Sin Ф = \dfrac{\textrm x}{\textrm e}

Or, Sin 45° =  \dfrac{\textrm x meters}{\textrm 1.2 meters}

Or, 0.707 × 1.2 meters = x

∴ x =  0.8484 meters

So, The vertical length of the top part of elevator to ground = x = 0.8484 meters

Hence,The vertical length of the top part of elevator to ground is 0.8484 meters .  Answer

Q-14

Given as:

The altitude of decent of plane = H = 10,000 feet

The angle of descend =  Ф = 22°

Let the glide runway path = y feet

<u>Now, According to question</u>

Tan angle = \dfrac{\textrm perpendicular}{\textrm base}

Or, Tan Ф = \dfrac{\textrm H}{\textrm y}

Or, Tan 22° =  \dfrac{\textrm  10,000 feet}{\textrm y feet}

Or, 0.4040 =  \dfrac{\textrm  10,000 feet}{\textrm y feet}

Or, y =  \dfrac{\textrm  10,000 feet}{\textrm 0.4040}

∴   y = 24,752.47

So,The glide runway path = y = 24,752.47 feet

Hence, The glide runway path is 24,752.47 feet . Answer

6 0
3 years ago
Whats 5 divided by negative 3? its -15 right?
iris [78.8K]

Answer:

its -1.66666666667

Step-by-step explanation:

you are thinking of 5x-3, remember you have the number 5 dividedinto -3 parts

4 0
2 years ago
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MA_775_DIABLO [31]
The cost for a gallon of Moo Milk is $5.12
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Therefore:

One gallon of liquid equals 128 fluid ounces. 

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0.04 × 8 = 0.32

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I hope this helped - Maria S.
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Answer:

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Step-by-step explanation:

3,060,066,900

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