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
kkurt [141]
3 years ago
15

Find the missing number ___:7 = 12:21 A.14 B.12 C.4 D.3

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
6 0
<span>The question is asking us to "find the missing number ___:7 = 12:21 First, let's see how similar are 7 and 21 - 21 is 7 multiplied by 3. So the gap will be filled in by something that multiplied by 3 will give us 12. So we have : x*3=12, and also: x=12/4=4, so the answer is C.4</span>
You might be interested in
There are two factors of -36 such that one factor is 11 less than half of the other factor choose all the pairs of these factors
Amanda [17]

Answer with explanation:

Factors of  -36 are

      =\pm 1, \pm 2,\pm 3,\pm 4, \pm 6, \pm 9, \pm 12, \pm 18, \pm 36

It is given that , among the factors of , -36 , one factor is 11 less than half of the other factor.

If you will take,  =\pm 1,\pm 3,\pm 4, \pm 9,, then you can find such pairs.

Pairs are= (3,-4), (9, -1),(-1, -6),

7 0
2 years ago
12.
Genrish500 [490]

Answer:

I'm pretty sure the answer is D

4 0
3 years ago
Solve the system of linear equations.
icang [17]

Answer: The set does not have a solution

Step-by-step explanation:

Adding Equations 1 & 3 we get 5x = 7. This gives x = 7/5

Putting this value of x in eq. 2 we get

-2y + 2z = -1-(7/5) or

2y - 2z = 12/5  or  5y - 5z = 6

Multiplying eq. 1 by 2  we get  

4x + 2y - 2z = 6

adding this with eq. 2 we get 5x = 5 or x = 1

As the common solution for x from equations 1&3 does not satisfy eq. 1&2 it comes out that the three equations do not have a common solution.

Same can be verified by using different sets of two equations also.

7 0
3 years ago
Evaluate and simplify the following complex fraction.
likoan [24]

Answer:

yjyjytjyjtyjyjtyjtyjyhjyjnfrhjnrthj

Step-by-step explanation:

8 0
2 years ago
What is the value of y
kari74 [83]

Answer:

y= -6

Step-by-step explanation:

-2y - 5y= -7y

-7y=42

42/-7=

y= -6

5 0
2 years ago
Other questions:
  • I need help on my homework .&gt;. What's the median, first quartile, third quartile, and interquartile range for the numbers 14,
    12·1 answer
  • In the figure shown, what is the measure of angle x?
    9·2 answers
  • At a pizzeria, a medium pizza which has diameter of 12 inches sells for $6.00 and a large pizza which has a diameter of 16 inche
    8·1 answer
  • Which of the following describes the quotient of 4 and -36?
    14·1 answer
  • Solve for x if 6(X + 3) = 36 *<br><br>​
    6·2 answers
  • The function f(t) = 349.2(0.98)t models the relationship between t, the time an oven spends cooling and the temperature of the o
    7·2 answers
  • There are 50 teenagers at a swim meet. The ratio of locals to out-of-town
    15·2 answers
  • Evaluate: 36/x - 5 X=4
    9·2 answers
  • What is the missing angle<br> measure?
    6·1 answer
  • HELP ME WHATS THE VALUE OF X?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!