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
sergeinik [125]
3 years ago
15

21 × 6 ÷ 7 + 12 - 15​

Mathematics
2 answers:
Lostsunrise [7]3 years ago
5 0

Answer:

15

Step-by-step explanation:

21 × 6 ÷ 7 + 12 - 15​

= 126 ÷ 7 + 12 - 15

= 18 + 12 - 15

= 30 - 15

= 15

zmey [24]3 years ago
3 0

Answer:

15

Step-by-step explanation:

By order of operations, multiplication and division are done first, then the addition and subtraction. Remember, multiplication and division have the same precedence, as does addition and subtraction.

21*6 = 126

126/7 = 18

18 + 12 = 30

30 - 15 = 15

You might be interested in
A number n is greater than 22
8_murik_8 [283]
23 keep the picture save it and shush

3 0
2 years ago
Read 2 more answers
If cosA=4/5 and cosB=3/5 then find a,b,c
aliya0001 [1]

Answer:

a = 3, b = 4, c = 5

Step-by-step explanation:

Assuming we're working with a right triangle, where c is the hypotenuse, then using the definition of the cosine being the adjacent side over the hypotenuse, then we know:

a = 3, because it is the side adjacent to B

b = 4, because it is the side adjacent to A

c = 5, because it is the denominator in bot fractions

This of course assumes that there is no additional ratio in place.  For example, if the lengths were instead 8, 6 and 10 respectively, then the cosines given would still be 4/5 and 3/5.  Truthfully these only tell relative sizes of the sides, and not their absolute sizes.

3 0
2 years ago
Read 2 more answers
What's 10⁄12 written as a fraction in simplest form?
AveGali [126]
That would be
A. 5/6 
4 0
3 years ago
Read 2 more answers
Name: -
Luden [163]

Answer:

Step-by-step explanation:

Distance=400+200=600km

diplacement=x      200-0km=200km

total distance travelled=400+400=800km

7 0
2 years ago
What is ​ 4910 ​ expressed as a decimal?What is ​ 4910 ​ expressed as a decimal?
Anna35 [415]
I think its 4910.00 you can't make a whole number a decimal.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Using the greatest common factor for the terms, how can you write 56 + 32 as a product?
    7·1 answer
  • If 4m=10 what is the value of 12m
    5·1 answer
  • A bag contains 6 blue marbles, 8 green marbles, 9 red marbles, and 17 yellow marbles. What is the ratio of blue marbles to total
    13·1 answer
  • 37 is 100% of what number
    13·2 answers
  • Where Q and R are polynomials and the degree of R is less than the degree of B.
    11·1 answer
  • Is the equation y=3x in slope-intercept form? Explain.
    10·1 answer
  • 3.16×10 tool the third power
    14·1 answer
  • For the data in the table does y vary directly with? If it does, write an equation for the direct variation
    10·1 answer
  • HELP ASAP. Find the set.
    12·1 answer
  • Which value is a simplified form of 3^5 / 3^-5<br> ?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!