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
dolphi86 [110]
3 years ago
10

4 + 2/7x = 8 what does x equal

Mathematics
2 answers:
frozen [14]3 years ago
8 0
Subtract 4 from both sides of the equation
you will end up with 2/7x=4
next multiply 7x by both sides
you will end up with 2=28x
next divide 28 from both sides
you will end up with x=1/14 in
fraction form. Hope this helps.
Eduardwww [97]3 years ago
5 0
4+2/7x=8
minus 4 from both sides
2/7x=4

now there are 2 paths possible
1. 2/(7x)=4, if so, go to AAAAAA
2. (2/7)x=4, if so, go to BBBBBB


AAAA
2/(7x)=4
times both sides by 7x
2=28x
divide both sides by 28
1/14=x

BBBBBBB
(2/7)x=4
times both sides by 7/2
x=28/2
x=14


x=1/14 or 14 depending on how the fraction is
1/14 if 2/(7x), 14 if (2/7)x
You might be interested in
How to get the answers?​
beks73 [17]

By inclusion/exclusion,

n(P' \cup Q) = n(P') + n(Q) - n(P' \cap Q)

We have

n(\xi) = n(P) + n(P') \implies n(P') = 28 - n(P)

so that

n(P'  \cup Q) = (28 - n(P)) + n(Q) - 2n(P) = 28 - 3n(P) + n(Q)

Now,

n(\xi) = 28 \implies n(P \cup Q) = 28 - 7 = 21

and by inclusion/exclusion,

n(P \cup Q) = n(P) + n(Q) - n(P \cap Q)

Decompose Q into the union of two disjoint sets:

Q = (P \cap Q) \cup (P' \cap Q)

Since they're disjoint,

n(Q) = n(P\cap Q) + n(P'\cap Q) \implies n(Q) = n(P\cap Q) + 2n(P)

\implies n(P \cup Q) = n(P) + (n(P\cap Q) + 2n(P)) - n(P \cap Q)

\implies 21 = 3n(P)

\implies n(P) = 7

From the Venn diagram, we see there are 3 elements unique to P - by the way, this is the set P \cap Q' - so n(P\cap Q) = 7-3 = 4, and it follows that

n(Q) = n(P\cap Q) + 2n(P) = 4 + 2\times7 = 18

Finally, we get for (a)

n(P' \cup Q) = 28 - 3n(P) + n(Q) = 28 - 3\times7 + 18 = \boxed{25}

For (b), we have by inclusion/exclusion that

n(P \cup Q') = n(P) + n(Q) - n(P \cap Q') = 7 + 18 - 3 = \boxed{22}

5 0
2 years ago
If a =5i + mj - 2k and b=10i+63-4k, find
Romashka [77]

Answer:

B

um belo dia abençoado

3 0
3 years ago
jose is hiking a trail that is 2 /4 miles long. he hikes 1 5/8 miles before resting how much farther does he have left
Yanka [14]

The number of miles that Jose will have left after resting will be 1 1/8 miles.

Total distance to be covered = 2 3/4 miles

Distance traveled = 1 5/8 miles

Therefore, in order to get the distance that's left for Jose to complete his journey, we've to subtract the distance traveled from the total distance and this will be:

= 2 3/4 - 1 5/8

= 2 6/8 - 1 5/8

= 1 1/8

Therefore, he has 1 1/8 miles left to travel.

Read related link on:

brainly.com/question/24787936

4 0
2 years ago
SOMEONE HELP ME PLS W/ BOTH QUESTIONS. WILL MARK U BRAINLIEST
motikmotik
Hello!

The last one is no solution because the graphs do not intersect.
4 0
3 years ago
Find two numbers that round to 264.5 when rounded to the nearest tenth
Vladimir79 [104]

Answer:

264.461 and also 264.549

6 0
3 years ago
Other questions:
  • How much money did Shen have to spend from his 4 pay checks
    10·1 answer
  • What’s 72 divided- 8•2 <br><br> And the dot is multiplication!
    9·1 answer
  • The points (-2,-10) and (-1, v) fall on a line with a slope of 8. What is the value of v?
    13·1 answer
  • The figure shows a diver diving from a platform, the diver reaches a depth of 4meters what is the change in the elevation of the
    10·2 answers
  • The director of an animal shelter need to raise more than $50,000 during a fundraiser. Write an inequality that represents the a
    12·1 answer
  • How do I find the slope?
    14·1 answer
  • HELP PLEASE I'M WRITING A TEST!!!<br> x+3/4 = x+5/6
    14·1 answer
  • A truck driver has to make a delivery at a location that is 230.2 miles away. She drives an average of 55 miles each hour for 3.
    11·2 answers
  • 199228384838393940404093499494+18283764656453=? Pls help
    12·2 answers
  • Find the product of 352 and 39
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!