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Law Incorporation [45]
3 years ago
9

each week Samantha can pay as much $15 for her school at lunch. Write an inequality showing how much Samantha spends at lunch.

Mathematics
2 answers:
sammy [17]3 years ago
4 0
15 is less than or equal to x
dimaraw [331]3 years ago
3 0

Let us say Samantha spends $x for her school at lunch every week.

We are given that she can spend as much as $15 every week for her school at lunch every week.

As much as stands for maximum quantity that she can spend.

So $15 is the maximum she can spend.

Writing an inequality,

x \leq 15

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A savings account with compounded interest can be modeled by which type of graph
Leona [35]

Answer: The answer is (C) Exponential.

Step-by-step explanation: We are to select out of the given options the type of graph that a savings account with compounded interest be modelled.

We know that compounding gives more interest because we are earning interest on interest, and not just on the principal.

The formula foe compound interest is given by

C.I.=P(1+\dfrac{r}{100})^n, where, 'P' is the principal, r is the rate of interest and 'n' is the number of years.

Therefore, we can see that the function is of exponential type.

If we draw the graph of compound interest earned every year with a particular rate of interest is of exponential type.

So, the correct option is (C) Exponential.

6 0
3 years ago
Read 2 more answers
If (fx)=5x, what is f^-1(x)
zysi [14]

Answer:

x/5

Step-by-step explanation:

To get the inverse function you need to leave the x alone and then switch variables ( f(x) = y)

f(x) = 5x

y = 5x

y/5 = x

Now that x is alone you switch the x for y and the y for x and you get:

x/5 = y

And this new y is the inverse function of f(x) ( f^-1(x))

f^-1(x) = x/5

6 0
3 years ago
Maria received 5/7 of the 42 votes cast for class president. how many votes did she receive?
baherus [9]
42/7= 6
5*6=30
30 votes
6 0
3 years ago
PLEASE HELP ME -45= -2.5g
Rainbow [258]

Answer:

g=18

Step-by-step explanation:

Isolate the variables by dividing each side by -2.5.

5 0
3 years ago
Read 2 more answers
5(1+4K)+7k=4(7k+2)<br> Help
stepladder [879]

Answer:

k = -3

Step-by-step explanation:

1) Simplify

5+20k+7k=28k+8

2) Combine the k's

5+27k=28k+8

3) Subtract 27k on both sides

5=k+8

4) Subtract 8 on both sides

-3=k or k= -3

5 0
3 years ago
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