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lara31 [8.8K]
3 years ago
5

Help me pls with this​

Mathematics
1 answer:
agasfer [191]3 years ago
7 0

Answer:

1 cup of lemon = 3 cup of apple

Step-by-step explanation:

it is a proportion

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-4x = -28<br> I need an answer...
Strike441 [17]

Answer:

x = 7

Step-by-step explanation:

-4x/-4 = -28/-4

x = 7

7 0
2 years ago
What is (−2.1)⋅(−1.4)
professor190 [17]
Multiplying a negative number and another negative number makes the product positive.
So (-2.1)*(-1.4) = 2.94
8 0
1 year ago
Rewarding BRAINLY FOR CORRECT ANSWER file = report
GrogVix [38]

Answer:

(-4,-4)

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Suppose that each day a company has fixed costs of 400 dollars and variable costs of 0.8x+1420 dollars per unit, where x is the
Bess [88]

Answer:

Step-by-step explanation:

Given that a company fixed costs are 400 dollars

and variable cost = 0.8x+1420 per unit and x the no of units produced

Selling price = 1500-0.25x per unit

a) Break even units

At break even units selling price = variable cost

1500-0.25x=0.8x+1420\\1.05x = 80\\x=76.19~76

Break even units = 76

b) Revenue = Sales - total costs

= x(1500-0.25x)-(x)(0.8x+1420)-400\\= 1500x-0.25x^2-0.8x^2-1420x-400\\= -1.05x^2+80x-400

Use derivative test to get max revenue

R'(x) = -2.10x+80

R"(X) <0

So maximum when I derivative =0 or when

x=38.10

x=38

c) price when x =38 is

P = 1500-0.25(38)\\=1490.5

5 0
2 years ago
Jessica makes $9.00 an hour babysitting her sister. If Jessica made $38.25 how many hours did she babysit?
lozanna [386]

Answer

4.25

Step-by-step explanation:

She would have baby sat for 4 hours and 15 minutes.

the 15 minutes comes in when we have the .25 because 1/4 of an hour is 15 minutes.

we can check this if we do 38.25 divided by 4.25 and we get 9.

4 0
2 years ago
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