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
Leto [7]
2 years ago
8

If 3x - (7 - x) = 29, find the value of 6x. A 6x=54 B 6x=60 C 6x=46 D 6x=45

Mathematics
1 answer:
Katyanochek1 [597]2 years ago
5 0

Answer:

6x=54

Step-by-step explanation:

3x - {7-x} =29

open bracket

3x - 7 +x =29

collect like terms and equate

4x =29 +7

4x = 36

divide both sides by 4

x = 9

.

. . 6x= 6 × 9 = 54

6x= 54

You might be interested in
The ratio of two numbers is 6 : 8. The sum of the numbers is 28. What are the two numbers?
Otrada [13]

Answer:

12 and 16 or 12:16

6 x 2 = 12

8 x 2 =16

12 + 16 = 28

Step-by-step explanation:

5 0
2 years ago
Evaluate 3/7 r + 5/8 s when r is 14 and s is 8
forsale [732]

Answer:

11

Step-by-step explanation:

Making the appropriate substitutions, we get

3/7 r + 5/8 s  =>  3/7 (14) + 5/8 (8).

Notice how this can reduced:

                             3(14)            5(8)

                           ----------- +     ---------   =   6 + 5 = 11

                                  7                8

6 0
3 years ago
Let u be an angle in the 4th quadrant with cos u=8/9<br><br> Then sin u=
lutik1710 [3]
To solve for the last side of the triangle, use the Pythagorean Theorem:
(8)^2 + x^2 = (9)^2
x = sqrt of 17
However, this is a NEGATIVE sqrt 17 because the terminal side is in quadrant 4, meaning that this side is under the X-axis and therefore negative.
Now that you know the side opposite of u in the triangle, do opposite/hypotenuse.
sin u = -(sqrt 17)/9
5 0
3 years ago
Let R be the shaded region in the first quadrant enclosed by the y-axis and the graphs of y=sinx and y=cosx.
julsineya [31]
<span>since sin and cos = each other at pi/4; take your integrals from 0 to pi/4
</span><span>[S] cos(t) dt - [S] sin(t) dt ;[0,pi/4]
</span>
<span>to revolve it around the x axis;
we do a sum of areas [S] 2pi [f(x)]^2 dx
</span>
<span>take the cos first and subtract out the sin next; like cutting a hole out of a donuts.
</span><span>pi [S] cos(x)^2 dx - [S] sin(x)^2 dx ; [0,pi/4]
</span>
<span>cos(2t) = 2cos^2 - 1
cos^2 = (1+cos(2t))/2
</span>
<span>1/sqrt(2) - (-1/sqrt(2) +1)
1/sqrt(2) + 1/sqrt(2) -1
(2sqrt(2) - sqrt(2))/sqrt(2) = sqrt(2)/sqrt(2) = 1</span>
3 0
3 years ago
Is y = 6x direct, inverse or neither?
Morgarella [4.7K]
Direct variation always has the relationship y=kx.  Indirect inverse variation always has the relationship y=k/x.

In this case y=kx, where k=6, so this is a direct variation.


7 0
3 years ago
Other questions:
  • 64% of 75 tiles is?
    9·2 answers
  • A circle has an area of 75 square centimeters. Which answer is closest to the measure of its radius?
    14·2 answers
  • Charles can move 16 boxes in 4/3 of an hour. How many boxes can he move in one hour
    8·2 answers
  • The Baltimore Ravens scored 35 more than three times the number of points the Pittsburgh Steelers scored. Altogether, the teams
    14·1 answer
  • Write an equation for the line<br><br> With a slope of -3 and a y-intercept of 1 ________
    10·1 answer
  • Which of the following lengths of lines could be used to create a right triangle
    11·2 answers
  • A vcr and tv were bought for 8000 each. The shopkeeper made a loss of 4 per cent on vcr and 8 per cent prophit on the tv. Find t
    12·1 answer
  • An item is regularly priced at $70. Keiko bought it on sale for 80% off the regular price. How much did Keiko pay? $
    6·2 answers
  • a) Sundar bought two calculators for Rs. 1000. He sold one of them at a profit of 10% and other at a loss of 10%. If the selling
    9·1 answer
  • If f(x)=x2+1, then (f∘f)(x)=
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!