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Leni [432]
3 years ago
13

What is the value of x that makes the statement true? 7x + 9 = 5x + 39 x =

Mathematics
2 answers:
iren [92.7K]3 years ago
8 0
7x + 9 = 5x 39
7x -5 = 39-9
2x =20
30\2 x=15
sleet_krkn [62]3 years ago
6 0

Answer:

15

Step-by-step explanation:

7x+9=5x+39

7x-5x=39-9

2x=30

30/2=x

x=15

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C.

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3 0
3 years ago
Please help ! posted picture of problem
inna [77]
For a linear function: The graph is a straight line
For a non-linear function: The graph is not a straight line

The given graph is not a straight line and is rather a curve with several turning points i.e several ups and downs. Hence the graph belongs to a Non-Linear Function.

A relation is non-function when it passes through same x value more than once. Since this cannot be observed in the given graph, the graph belongs to a function.

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4 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST
wlad13 [49]

A) Tonya bought 3 games at X price, so 3X would be total amount.

B) Tony's cost was 0.50 less than X, so x-0.50, he bought 4 games, so he spent 4(x-0.50).

C) Set those to equal to solve for x:

3x = 4(x-0.50)

D) Solve:

3x = 4(x-0.50)

Distribute:

3x = 4x - 2

Subtract 4x from both sides:

-X = -2

Multiply both sides by -1:

X = 2

E) Since X is the amount Tonya paid per game, Tony paid X - 0.50, so Tony paid 2 - 0.50 = $1.50 per game.

Check:

Tonya:  3x = 3(2) = $6 total

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8 0
3 years ago
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Suppose that a colony of bacteria starts with 1 bacterium and doubles in number every half hour. how many bacteria will the colo
OverLord2011 [107]
Let a_n represent the number of bacteria after \frac{n}{2} hours.

so

a_0 is the number of bacteria after 0/2 = 0 hours

a_1 is the number of bacteria after 1/2 hours

a_2 is the number of bacteria after 2/2 = 1 hours and so on


so if we list a few terms of this sequence, we have:

a_0=1

a_1=1*2

a_2=1*2*2

a_3=1*2*2*2

a_4=1*2*2*2*2


so clearly, a_n, the number of bacteria after \frac{n}{2} hours, is equal to 2^{n}.
 

 a_4_8 is the number of bacteria after
 
\frac{n}{2}=\frac{48}{2}= 24 hours.

Thus, we calculate  a_4_8, which is 2^{48}.


Answer: the number of bacteria after 24 hours is 2^{48}.

3 0
3 years ago
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