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
9966 [12]
3 years ago
12

SOLVE IT SO MANY POINT 3(7x+ 1) = 21

Mathematics
2 answers:
IrinaK [193]3 years ago
6 0
<span>3(7x+ 1) = 21
21x + 3 = 21
21x = 18
x = 6/7

hope this helps!</span>
Natasha_Volkova [10]3 years ago
4 0
First, you would simplify both sides of the equal signs, to do this, you would use the distributive property. 
21x + 3 = 21

Then, you would subtract 3 from both sides. 
21x = 18

Your final step would be to isolate the x, divide both sides by 21. 

Your answer would be x = 6/7

I hope this helps!

You might be interested in
Mrs.Fernandez must drive 6 1/9 miles to work every day. How many miles will Mrs.Fernandez have driven after 12 days of work?
Serjik [45]
Well since we know that for one day Mrs. Fernandez drives 6 and 1/9 miles to work what could we do to get 12 days of work driven.
all we have to do here is multiply 12 and 6 and 1/9 :) lets set this up
    1                                                                 1         12
6 ----  x  12    or lets set this up like this  6 ----  x  -----
    9                                                                9         1

but lets change that whole fraction into an improper fraction 
    1
6 ----  so all we do is multiply 6 x 9 and add the 1 so lets try that 
    9
 6 x 9 = 54 
54 +1 = 55 
hey look we have our numerator!! ( the top number) 
and our bottom number would stay the same as 9 so lets try this again:)
 55
----- now lets plug it in to our problem 
  9

 55        12
-----   x  -----
  9          1

now lets just multiply across

 55        12    = 55 x 12 = 660
-----   x  ----- 
<span>  9          1     = 9 x 1 = 9 
</span>
so now our fraction look like this 
 660
-------
   9
but lets make it not look so confusing and divide 660 by 9
660/9 = 73.33333333
again it still looks confusing but we can round it out to beeeee
73
so this means that for 12 days Mrs. Fernandez drove 73 miles!
hope this isnt confusing;)
have a good one and mark me brainliest!

3 0
4 years ago
Math Vocabulary - Match the word to its definition.
riadik2000 [5.3K]

Answer:

1. Exponents- e.is the number of times the BASE NUMBER is multiplied by itself.

2. Term- a.is a number by itself or the product of a number and variable (or more than one variable).

3. Variables- d.letters or symbols used in place of a quantity we do not know yet.

4. Coefficient- c.the number in front of a variable

5. Constant- b.is a number that stays fixed in an expression

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Sarah rides her horse for 2 1/6 hrs with a constant speed of 6 km/hr and then for another 2 hours and 5 minutes with a constant
yan [13]
We know that
speed=distance/time

1) <span>Sarah rides her horse for 2 1/6 hrs with a constant speed of 6 km/hr
time=2 1/6 hrs----> 13/6 hrs
speed=6 km/h
distance=speed*time----> 6*(13/6)---> 13 km

2)</span><span>for another 2 hours and 5 minutes with a constant speed of 12 km/hr
time=2hrs+5 minutes----> 2+(5/60)--> 125/60 hrs
speed=12 km/hrs
distance=speed*time----> 12*(125/60)---> 25 km

3) find the </span><span>average speed for the total trip
total distance=13 km+25 km----> 38 km
total time=(13/6)+(125/60)----> (10*13+125)/60----> 4.25 hours
speed=38/4.25----> 8.94 km/hrs

the answer is
8.94 km/hrs</span>
7 0
4 years ago
For problem 8, find the area of the shaded region. The polygon is a regular polygon. please show work.​
MissTica

Answer:

34.7791 [unit²].

Step-by-step explanation:

1) area of the circle is:

πr²;

2) area of the regular polygon is:

6*r²√3*0.25=1.5√3r²;

3) the required area:

πr²-1.5√3r²=r²(π-1.5*√3)=64*(3.1415-1.5*1.7321)=34.7791

4 0
3 years ago
Which relation is a function
LiRa [457]
B

a function is a relationship between inputs where each input is related to exactly one output.
4 0
2 years ago
Other questions:
  • Haley spent the following amount of money on gas for the past six weeks: $35, $68, $17, $41, $58, $89, and $39. What was the med
    15·1 answer
  • $4500 principal, 9% rate, 3.5 years. find the simple interest
    12·1 answer
  • Which set of points contains the solutions to the inequality y ≤ 8x – 3? A. {(–3,–17), (4,11), (7,19)} B. {(3,22), (2,3), (8,27)
    5·1 answer
  • On the day a coffee shop first opened it had 140 customers 65% of the customers ordered a large coffee how manny customers order
    12·2 answers
  • Please help asap will mark brainliest
    14·2 answers
  • Car is moving on a circle on a plane. At time t (seconds), its x-coordinate is given by x(t) = 10 sin(200t + 3) + 30 while its y
    11·1 answer
  • Please help with angles all of it if you can
    15·1 answer
  • What is the answer for these questions?
    13·2 answers
  • Convert 1/2 radians to degrees
    12·1 answer
  • Which point on the number line represents Negative three-fourths?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!