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Paul [167]
3 years ago
5

If 39 x 100 =x2 whats 9x199=x3???

Mathematics
1 answer:
zlopas [31]3 years ago
5 0

Answer:

1) is x2=x=1950

2) x3=x=597

Step-by-step explanation:

39*100=3900

3900/2=1950 x2=x=1950

the next one is 9*199=1791

1791/3=597 x3=x=597

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A company that offers tubing trips down a river rents tubes for a person to use for $20 and “cooler” tubes to carry food and wat
aivan3 [116]

The group rent 11 river rent tubes and 4 cooler tubes.

Step-by-step explanation:

Rent for river rent tube = $20

Rent for cooler tubes = $12.50

Total spent = $270

Total tubes rented = 15

Let,

x be the number of river rent tube.

y be the number of cooler tubes.

According to given statement;

x+y=15    Eqn 1

20x+12.50y=270    Eqn 2

Multiplying Eqn 1 by 20

20(x+y=15)\\20x+20y=300\ \ \ Eqn\ 3

Subtracting Eqn 2 from Eqn 3

(20x+20y)-(20x+12.50y)=300-270\\20x+20y-20x-12.50y=30\\7.50y=30

Dividing both sides by 7.5

\frac{7.5y}{7.5}=\frac{30}{7.5}\\y=4

Putting y=4 in Eqn 1

x+4=15\\x=15-4\\x=11

The group rent 11 river rent tubes and 4 cooler tubes.

Keywords: linear equations, subtraction

Learn more about linear equations at:

  • brainly.com/question/8520610
  • brainly.com/question/846474

#LearnwithBrainly

6 0
2 years ago
Labeling Parts of a Circle
mel-nik [20]

Answer:

Click on the screenshot, I labeled the parts

Hope this helps :))

7 0
2 years ago
Patrick went cycling one weekend.
Margarita [4]
For this question, it would be most effective to use an algebraic expression to more easily show what the question is asking. If we use the variable "k" to show the distance in km that he cycled on Sunday, we know that the amount he cycled on Saturday equals k + 12, and the amount that he cycled on the weekend should be the amount of Saturday plus the amount of Sunday. If we write this as an equation we say:
k + k + 12 = 38
=> 2k + 12 = 38
Now we can just rearrange and solve for k:
=> 2k = 26
=> k = 26/2 = 13
Therefore Patrick cycled 13km on Sunday
To solve the answer, we just add 12km to the value for Sunday like so:
12 + 13 = the amount he cycled on Sunday
Hope this helped, remember to please try and understand the maths as well as the answer :))
8 0
3 years ago
A set of 12 windup toys costs $9. What is the cost per windup toy?
-BARSIC- [3]

Answer:

0.75

Step-by-step explanation:

9 ÷ 12 = 0.75

hope this helps...

4 0
3 years ago
Read 2 more answers
Mrs. Jones earns $12.50 an hour at her job. She cannot work more than 40 hours in one week because her employer cannot pay overt
Maurinko [17]
M<40 is false statement.

As M equals at least $350 which is greater than $40
4 0
3 years ago
Read 2 more answers
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