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finlep [7]
1 year ago
13

4. You have 36 pairs of running shoes. Let x be the

Mathematics
1 answer:
Liono4ka [1.6K]1 year ago
4 0

Answer:

  • Nikes: 24 pairs
  • Adidas: 12 pairs

Step-by-step explanation:

The system of equations can be written ...

  x + y = 36

  x = 2y

__

The system can be solve by substituting for x:

  (2y) +y = 36

  y = 12 . . . . . . divide by 3

  x = 2(12) = 24

There are 24 pairs of Nikes and 12 pairs of Adidas.

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Solve for x: 3-x = 3(6x-9). Describe the process used to solve the equation and show each step.
FromTheMoon [43]

Answer:

x=1.578

Step-by-step explanation:

Given equation is 3-x = 3(6x-9)

We need to find the value of x

3-x = 3(6x-9)

Distribute 3 in the right-hand side  

3-x=18x-27

Add both sides x

3-x+x=18x+x-27\\3=19x-27

Now, add both sides 27

3+27=19x-27+27\\30=19x

Divide both sides by 19

\frac{30}{19}=\frac{19x}{19}\\x=1.578

So, x=1.578

5 0
2 years ago
Find the cost of 6 kg rice, if the cost of 10 kg rice is 325 rupees .​
Firlakuza [10]

Answer:

195 rupees

Step-by-step explanation:

10kg=325 rupees

6kg=?

Cross multiplication;

=6×325/10

=1950/10

=195 rupees

5 0
3 years ago
friday night a pizza parlor sold 5 large pizzas and some medium pizzas. the pizza parlor made a total of $291. how many medium p
padilas [110]
>Look at the question carefully and revise it or you can easily just....

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4 0
2 years ago
A coin is flipped five times. Find the number of possible sets of heads and tails that have 2 heads.
agasfer [191]

Answer:

option d

Step-by-step explanation:

Given that a coin is tossed 5 times. Assuming it is a fair coin, head and tail are equally likely.

If we toss 5 times, the number of heads can be either 0 or 1 or 2...5.

Number of outcomes that have 2 heads

=out of 5, two heads and three tails

=5C2

=5(4)/2

=10

So answeris 10

Option d is right answer

5 0
2 years ago
How many packs of DVD's can you buy with $156 if one pack costs $12?
____ [38]

Answer:

13

Step-by-step explanation:

156/12=13

8 0
3 years ago
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