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3 years ago

No explanation needed

Mathematics

1 answer:

sukhopar [10]3 years ago

7 0

Answer:

256/3

Step-by-step explanation:

F(x) = 1/3 * 4^x

Let x = 4

F(4) = 1/3 * 4^4

= 1/3 (256)

= 256/3

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Jen Butler has been pricing Speed-Pass train fares for a group trip to New York. Three adults and four children must pay $ 79.

xxMikexx [17]

Answer:

Price of the adult's ticket = $13

Price of a child's ticket = $ 10

Step-by-step explanation:

Given:

Cost of train fares for Three adults and four children = $79

Cost of train fares Two adults and three children = $ 56

To Find:

Price of the adult's ticket and the price of a child's ticket =?

Solution:

Let the cost of one adult's ticket be x and

Let the cost of one child's ticket be y

Then

Three adults and four children must pay $ 79 be

3x + 4y = 79-----------------------------------------------(1)

Two adults and three children must pay $56

2x + 3y = 56----------------------------------------------(2)

multiply eq(1) by 2, we get

6x + 8y = 158----------------------(3)

multiply eq(2) by 3, we get

6x + 9y = 168----------------------(4)

Subracting (3) from (4)

6x + 9y = 168

6x + 8y = 158

(-) (-) (-)

------------------------------

0x + y = 10

------------------------------

y=10

Now substitute the value of y in eq (1) to get the value of x

3x + 4(10)= 79

3x + 40 = 79

3x = 79 - 40

3x = 39

x = $\frac{39}{3}$

x= 13

3 0

4 years ago

Solve for a. 1/3(21−3a)=6−a

Tems11 [23]

1/3(21-3a)=6-a
I simplified the equation to the form, which is simple to understand
1/3(21-3a)=6-a
Simplifying:
 + 0.333333333333*(21-3a)=6-a
Reorder the terms in parentheses
+(+7-1a)=6-a
Remove unnecessary parentheses
+7-1a=+6-a
We move all terms containing a to the left and all other terms to the right.
-1a+1a=+6-7
We simplify left and right side of the equation.
a=-1
0=-1
The left and right sides are not equal, therefore there is no solution. This equation is invalid
Hope this helped

3 0

3 years ago

Read 2 more answers

Ms. Houston's fifth grade class is going to A museum the class raises $68 for the trip transportation to the museum cost $40The

damaskus [11]

68-40=28
28/4=7
therefore, 7 is your answer
(Hope it helps my friend ^_^)

8 0

4 years ago

Read 2 more answers

Which equation has a solution of 2/3 for x?

Anika [276]

<h2>Answer: A. 15x = 10</h2>