1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nadya68 [22]
3 years ago
12

How many friday the 13ths are there in a year?

Mathematics
1 answer:
strojnjashka [21]3 years ago
4 0
Every month starting on a sunday. there usually 2-4 a year
You might be interested in
Minato drove 390 miles. Part of the drive was along local roads, where his average speed was 20 mph, and the rest was along a hi
pashok25 [27]

Answer:

45 miles.

Step-by-step explanation:

Given that the:

Total distance covered = 390 miles

Total time = 8 hours

Let the distance covered along the local way = L

And the distance covered along the highway = H

Along with local way,

Speed = distance/ time

20 = L / T

T = L /20 .... (1)

Along the highway,

Distance covered H = 390 - L

Let the time = t

Speed = distance/time

60 = (390 - L)/t

t = ( 390 - L)/60

But total time = T + t

That is

8 = L/20 + (390 - L)/60

The LCM at right hand side will be 60

8 = ( 3L + 390 - L )/60

Cross multiply

480 = 2L + 390

Collect the like terms

2L = 480 - 390

2L = 90

L = 90/2

L = 45 miles.

Therefore, the distance Minato drive along local roads is 45 miles

4 0
4 years ago
17 POINTS!!!! List the elements in the set described. {x|x is a natural number between 9 and 17} (Use a comma to separate answer
stepladder [879]

Answer:

10, 11, 12, 13, 14, 15, 16

Step-by-step explanation:

The natural numbers are 1, 2, 3, 4, ...

The natural numbers between 9 and 17 are 10, 11, 12, 13, 14, 15, 16.

Answer: 10, 11, 12, 13, 14, 15, 16

8 0
3 years ago
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
leva [86]

Left side

Radius - 17 cm

Diameter - 24 cm

Right side

Radius - 25 mm

Diameter - 50 mm

7 0
3 years ago
Read 2 more answers
a school debate team has 4 girls and 6 boys. a total of 4 of the team members will be chosen to participate in the district deba
alexgriva [62]
The correct question is:
What is the probability that 2 girls and 2 boys will be selected?

Solution:
Total number of students = 10
Ways to select a team of 4 students = 10C4 = 210

2 Boys can be selected from 6 boys in ways = 6C2 = 15
2 Girls can be selected from 4 girls in ways = 4C2 = 6

Number of ways to select 2 boys and 2 girls = 15 x 6 = 90

Probability of choosing 2 boys and 2 girls = 90/210 = 3/7

Thus, if 4 team members are selected, the probability of choosing 2 boys and 2 girls will be 3/7
3 0
3 years ago
Read 2 more answers
A welder must cut a piece of metal so that it fits tightly into its spot. The welder cuts 9/16 of an inch off the metal so that
Fed [463]

. A welder must cut a piece of metal so that it fits tightly into its spot. The welder cuts 5/16 of an inch off the metal so that it measures 3 3/4 inches. What was the size of the original piece of metal?  

c 4 1/16

6 0
3 years ago
Read 2 more answers
Other questions:
  • What are three ratios that are equivalent to the ratio 5:3
    6·2 answers
  • Need some help on this question
    7·1 answer
  • A business journal investigation of the performance and timing of corporate acquisitions discovered that in a random sample of 2
    9·1 answer
  • Whic ordered pair is s solution of the equation y=5x
    8·1 answer
  • What is the value of x in the figure ( 3x +8) 35
    10·1 answer
  • 0.83345 is a rational number?
    5·2 answers
  • Helpppppppppppppppplz
    12·2 answers
  • Kendra is buying bottled water for a class trip. She has 16 bottles left over from the last trip. She buys bottles from the case
    10·1 answer
  • Which is equal to 7√3 ?<br><br><br> 7^3<br><br><br> 21<br><br><br> (13)^7<br><br><br> 7 1/3
    5·1 answer
  • Ms. Smith wants to do a statistical analysis on students' final examination scores in her math class for the past year. Should s
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!