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4 years ago

13

Without solving what can you tell about the solution to this equation? 0.002n + 15 =2

2 answers:

Andrews [41]4 years ago

7 0

Answer:

We know that the value of n will be negative.

Step-by-step explanation:

Since 15 is so much larger than 2, we know that the other value on that side would have to be a negative value. Since the coefficient is not negative, we know the variable must be.

kenny6666 [7]4 years ago

5 0

Answer:

n has to be negative. (exact answer on iready)

Step-by-step explanation:

I did this!

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A plumber uses the equation c = 35h + 70 to determine the total amount of money charged for a service call, where h represents t

olga_2 [115]

Answer:

$122.50

Step-by-step explanation:

All you have to do is plug in the number(s). In this case, you put 1.5 in for "h", and you multiply 35 by 1.5, which gets you 52.5, then you just add 70, which gets you 122.50.

8 0

3 years ago

The town of Springfield, USA has a population of 990099009900 people. The population is growing at a rate of 2.3\%2.3%2, point,

qwelly [4]

Answer:

The expression is

$y=9,900(1.023)^5$

$11,092\ people$

Step-by-step explanation:

we know that

The equation of a exponential growth function is equal to

$y=a(1+r)^x$

where

y is the population

x is the number of years

r is the rate of change

a is the initial value or y-intercept

we have

$a=9,900\\r=2.3\%=2.3/100=0.023$

substitute the given values

$y=9,900(1+0.023)^x$

$y=9,900(1.023)^x$

For x=5 years

substitute in the exponential equation

$y=9,900(1.023)^5$

$y=11,092\ people$

6 0

4 years ago

WHICH IS NOT A LINEAR FUNCTION

Tom [10]

Answer:

OPTION C

Step-by-step explanation:

IN OPT. A- 2 IS MULTIPLED IN EACH NO.

IN OPT.B-2 IS MULTIPLED

IN OPT.D-1 IS ADDED

IN OPT.E-2 IS ADDED

4 0

3 years ago

Hello could anyone help me out? thank you! The room temperature is 50 *F. The temperature will decrease by 4*F each hour. Let "h

Taya2010 [7]

We start off with 50 as our room temperature.

Then we subtract off 4h to indicate the temperature drops 4 degrees per hour

You can think of it like this

1 hour = drop by 4 degrees

h hours = drop by 4h degrees (multiply both sides by h)

So the expression 50-4h represents the temperature after h hours. We want this to be below 32, so 50-4h < 32 is the inequality we're after

Solving for h leads to

50-4h < 32

-4h < 32-50 ... subtract 50 from both sides

-4h < -18

h > -18/(-4) ... divide both sides by -4; note the inequality sign flips

h > 4.5

If you go beyond 4.5 hours, then the temperature will be below 32 degrees

notes:

4.5 hours = 4 hours, 30 minutes = 270 minutes
the inequality sign flips whenever you divide both sides by a negative number

6 0

3 years ago

Read 2 more answers

Sophia has $2 to buy oranges and apples. Oranges cost $0.45 each and apples cost $0.25 each. How many oranges and apples can she

SOVA2 [1]

Answer:

The solution in the attached figure

Step-by-step explanation:

Let

x-----> the number of oranges

y-----> the number of apples

we know that

The inequality that represent this situation is

$0.45x+0.25y\leq 2$

The solution is the shaded area below the solid line between the positive whole numbers values of x and y

using a graphing tool

see the attached figure

3 0

3 years ago