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dolphi86 [110]
3 years ago
5

Pleaseeeee helpppppp meeeeee!!!!!

Mathematics
1 answer:
zimovet [89]3 years ago
7 0

I'm not sure how to solve this but by analyzing the answers they provide you. Only one of them makes sense.

_______B_________

Let me know if I'm wrong or not

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balu736 [363]
The answer to your equation is 12 ½
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3 years ago
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pamela vendio 3 chocolates de 14 g cada uno y obtuvo una ganancia de $21. Si quiere ganar $400 mediante la venta de 20 chocolate
ExtremeBDS [4]

Answer:

Correct option: first one -> 40

Step-by-step explanation:

To solve this problem, we can use a compound rule of three.

The quantity of chocolate and the weight of each chocolate are inversely proportional: to achieve the same earning, if we have more chocolate, we need less grams per chocolate.

Then, the rate of change in quantity multiplied by the rate of change in the grams will be equal to the rate of change in the final earning.

So we have that:

(3/20) * (14/X) = 21/400

42 / 20X = 21 / 400

1 / 10X = 1 / 400

10X = 400

X = 40 grams

Correct option: first one

4 0
3 years ago
What information do you need to write an equation in vertex form? Select all that
bulgar [2K]

Answer:

an ordered pair anywhere on the parabola

the coordinates for the vertex

the formula for vertex form

Step-by-step explanation:

6 0
3 years ago
1. Sum of two numbers = 15
lions [1.4K]
The answer is 45 because you multiply 9 and 6
5 0
3 years ago
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Which is the better buy 7 pounds for $8.47 or 9 pounds for $11.07
Nesterboy [21]
First we find the average cost per pound...
(7n)/7 = ($8.47)/7   = $1.21 per pound
(9n)/9 = ($11.07)/9  =  $1.23 per pound

$1.21 is the cheapest price per pound, so 7 pounds for $8.47 is a better buy

Answer = 7 pounds for $8.47 is the best buy
5 0
3 years ago
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