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Serggg [28]
3 years ago
9

Solve for x 30x=(60)(ЧО)

Mathematics
1 answer:
Tju [1.3M]3 years ago
4 0

Answer:

x = 8

Step-by-step explanation:

30x = (60)(40)

30x = 240                 Multiply 60 and 40

x = 8                          Divide 30 from both sides

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How many combinations of four books can be made from eight different books?
harina [27]

Answer:

70

Step-by-step explanation:

70 combinations of four books can be made from eight different books.

4 0
3 years ago
Find each function value<br><br>1. f(7) if (x)=5x<br><br>2. f(4) if f(x)=3x-1
Inessa [10]

<u>ANSWER</u>

1. \:  \: f(7) = 35

2. \: f(4) = 11

<u>EXPLANATION</u>

To find the value of a function, f(x) at a given value x=a, we plug in x=a into f(x) to obtain f(a) in simplified form.

The first function is

f(x) = 5x

To find f(7), we substitute x=7, into the function.

\implies f(7) =5(7) =  5 \times 7 = 35

The second function is

f(x) = 3x - 1

To find f(4), we replace x with 4 to obtain,

f(4) = 3(4) - 1

f(4) = 12 - 1 = 11

6 0
3 years ago
Help me Please I'm confused!!!!!!!
Andrew [12]

Answer:

5 x k = 15 + 3 = 18

Step-by-step explanation:

k=3

6 0
3 years ago
*16. A family rents a van for $20 per day plus $120 deposit. They paid a total
andrew-mc [135]
I think it’s 12, if you take $360 and subtract the $120 deposit you get 240 and i divided that by 20 to get 12.
8 0
3 years ago
Which shapes have the same volume as the given rectangular prism?<br><br>base area = 50 cm^2​
icang [17]

Answer:The first one

Step-by-step explanation:

V rectangular prism = Area of the base *5

5 0
3 years ago
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