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Zina [86]
3 years ago
7

eric sells donuts for $7 per dozen. which equation can be used to determine the total cost, t, for x dozen of donuts?

Mathematics
2 answers:
Elina [12.6K]3 years ago
6 0

Answer:

7 times x = t

Step-by-step explanation:

if your buying 3 dozen of donuts, the total cost would be by doing 7x3

Ierofanga [76]3 years ago
6 0

Solution:

<u>It should be noted:</u>

  • Given sentence: Eric sells donuts for $7 per dozen.

<u>Let's reread the sentence carefully.</u>

Eric sells donuts for $7    per dozen.

                                   ↥           ↥

                                  $7     1 dozen

<u>The equation created:</u> $7 = 1 dozen

<u>If x dozen doughnuts were sold, equation:</u> $7x = t = x dozen

Thus, the equation that can determine the total cost, t, for x dozen of donuts is $7x = t.

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Trigonometry
dexar [7]

Answer:

cos (12+10) = cos (22)

Step-by-step explanation:

Cos 12* cos 10* - sin 12* sin 10*

Appling the trig identity: cos (a + b) = cos a.cos b - sin a.sin b

inputing the values of a and b

cos (12 + 10) = cos 12cos 10 - sin 12sin 10  = cos (22)

4 0
4 years ago
You have been invited to be part of the planning committee for the County Fair. In order to be an effective member you will need
kakasveta [241]
Firstly let's find the dimension of this large rectangle:(given)

Area of Rectangle = 660 x 66 =43,560 ft²

And we know that 1 acre = 43,560 ft², then each rectangle has an area of 1 acre & the 20 acres will correspond to 20 x 43560 = 871,200 ft²

We know that the 20 acres form a rectangle. We need to know what is their disposition:

1) We would like to know the layout of the rectangles since we have 4 possibilities FOR THE LAYOUTS

Note that W=66 & L=666 = 43,956 ft²/ unit )

lay out shape could be either:(in ft)
1 W by 20 L  (Final shape Linear 66 x 13320 = 879,120) or
2 W by 10 L  (Final shape Stacked  132 x 6660 = 879,120) or
4 W by   5 L  (Final shape Stacked  264 x 3330 = 879,120) or

2) We would like to know the number of participants so that to allocate equal space as well as the pedestrian lane, if possible, if not we will calculated the reserved space allocated for pedestrian/visitors)

3) Depending on the shape given we will calculate the visitor space & we will deduct it from the total space to distribute the remaining among the exhibitors.

4) (SUGGESTION) Assuming it's linear, we will reserve
20ft x 13320 ft = = 266,400 ft² and the remaining 612,720 ft² for exhibitors
5) Depending on the kind of the exhibition, we will divide the 612,720 ft² accordingly
6) How can we select the space allocated for each exhibitor:
 the 617,720 ft² could be written as a product of prime factors:
612720 = 2⁴ x 3² x 5 x 23 x 37
If you chose each space will be185 ft² , then we can accommodate up to 3,312 exhibitors.
Obviously you can choose any multiple of the prime factors to specify the area allocated & to calculate the number of exhibitors accordingly







5 0
4 years ago
Can somebody please help me with a and b?
lozanna [386]
A.
To find a percentage of something, multiply by it's decimal. so 15% is 0.15

In c - 0.15c Louisa is taking the normal cost of a movie subscription and subtracting 15 percent of it off. hence the 15% discount.

We can rewrite this by skipping the subtraction part. If she's getting a 15% discount, you could say she is only paying 85% of it's normal price (100% - 15%). so put 85% in decimal and get 0.85c

Both expressions involve the same discount and both show that she is paying less than full price.

B.
They tell you the width is 16 feet. The length is 4% more than that. in other words the length is 104% the width. In decimal 100% is 1 and 4% is 0.04; 1 + 0.04 is 1.04.

1.04 * 16 = 16.64, which is the length.

Area (assuming the room is a rectangle) is length * width. so 16 * 16.64 whatever that equals is your area.
5 0
4 years ago
How do I get the answer to 6(5-q)=
Vedmedyk [2.9K]

Answer:

multiply

Step-by-step explanation:

3 0
3 years ago
One Positive number is five times another number the difference between the two numbers is 172 to find the numbers
Yakvenalex [24]

Answer:

x= 43, y=215

Step-by-step explanation:

Let one number be x,

Let the other number be y.

x= 5y

x - y= 172

Putting value of x in equation 2.

5y - y = 172

4y = 172

y= 172/4

y= 43

Putting value of y in eq. 1

x= 5(43)

x=215.

6 0
3 years ago
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