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ArbitrLikvidat [17]
3 years ago
12

A car travels 65 km in 1 hour. what is its average speed in meters per second?

Mathematics
1 answer:
deff fn [24]3 years ago
7 0
<span>Its speed is 18.05 m/s</span>
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2/3* (1/3+3 1/4 help pls now
ale4655 [162]

Answer:

43/18

Step-by-step explanation:

2/3(1/3+ 3 1/4)

  • First solve parenthesis.

2/3(1/3+ 3 1/4)

find the lowest common denominator (12) to add the two fractions.

1/3= 4/12;  

3 1/4= 13/4 = 39/12

4/12+ 39/12= 43/12

2/3(43/12)

  • Then multiply the fractions.

2/3(43/12)

Numerator: 2*43= 86

Denominator: 3*12= 36

86/36

  • Last simplify your fraction.

43/18 or 2 7/18

4 0
3 years ago
Which of these numbers is in the solution set of x + 5 = 15? A. 10 B. 3 C. 20 D. 11
stealth61 [152]

Answer:

A

Step-by-step explanation:

10 + 5 = 15

6 0
3 years ago
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there are 10 students in a social studies class. three students will be selected to present their term projects today. in how ma
pogonyaev
The answer is equivalent to 10*9*8 as their is one less student to go after each presentation.
720 ways.
6 0
3 years ago
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Two adults and 9 students cost $50 to attend
rjkz [21]

Answer:

The cost of tickets for a play is $3.00 for adults and $2.00 for children. 350 tickets were sold and $950 was collected. How many tickets of each type were sold?

Let x = number of $3 tickets

Let y = number of $2 tickets

Total = quantity × value

Step-by-step explanation:

x + y = 350                    (equation 1)

3x + 2y = 950                 (equation 2)

Use Substitution Method

Isolate variable x in equation 1

x = 350 – y                     (equation 3)

Substitute equation 3 into equation 2

3(350 – y) + 2y = 950

1050 – 3y + 2y = 950

3y – 2y = 1050 – 950

y = 100

Substitute y = 100 into equation 1

x + 100 = 350

x = 250

Answer: 250 $3 tickets and 100 $2 tickets were sold.

5 0
3 years ago
you want to treat some of your friends to the movies, and you have $75 to spend. If each ticket costs $10, and you want to purch
netineya [11]

Answer:

5 friends

Step-by-step explanation:

Since the snacks are worth $25, it is deducted from the total

10x=75-25

10x=50

x=5

5 0
3 years ago
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