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Lady bird [3.3K]
2 years ago
10

4.2x-1.4y=2.1 Solve for y

Mathematics
1 answer:
givi [52]2 years ago
7 0

Answer: y = -1.5+3x

Step-by-step explanation:

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I need help on to wich expresion has the least value 10 second challenge
Nimfa-mama [501]

Answer:

The first one.

Step-by-step explanation:

Both of the equations in the parenthesis have the same value, and 1/2 isn't as much as a whole.

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2 years ago
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You have an account that starts at $2500 with an interest rate of 3.25% compound yearly. How much is in the account after 10 yea
SSSSS [86.1K]

Answer:3,312.50

Step-by-step explanation:1. We assume, that the number 2500 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 2500 is 100%, so we can write it down as 2500=100%.

4. We know, that x is 3.25% of the output value, so we can write it down as x=3.25%.

5. Now we have two simple equations:

1) 2500=100%

2) x=3.25%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

2500/x=100%/3.25%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

8 0
2 years ago
Which area 100 km or 60km
rewona [7]

Answer:

100km

Step-by-step explanation:

6 0
3 years ago
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Suppose that the manufacturer of a gas clothes dryer has found that when the unit price is p dollars, the revenue R in dollars i
cestrela7 [59]
Answer: The maximum revenue is $1,000,000.

The function that is given is a quadratic equation and the graph would be an upside down parabola.  

Therefore, the maximum revenue would be at the vertex of the parabola.

To find the vertex, we can use the expression -b/2a to find the x-value.

It would be -4000/2(-4) = 500

Now, input 500 for p and you will get a revenue of 1,000,000.
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2 years ago
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Heeelllllllppppppppp
Crank
Its the first one. I typed them all in my graphing calculator to check
8 0
3 years ago
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