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
joja [24]
3 years ago
7

Please help me on this equation 9x-71>3(3x-7u)

Mathematics
2 answers:
kakasveta [241]3 years ago
7 0
<span>9x-71>3(3x-7u)
</span>⇒ 9x -71 > 3*3x -3*7u (distributive property)
⇒ 9x -71 > 9x -21u
⇒ (9x -9x) -71 > (9x -9x) -21u
⇒ -71 > -21u
⇒ -21u < -71
⇒ u > -71/(-21)
⇒ u > 3 8/21
<span>
Final answer: </span>u > 3 8/21~
777dan777 [17]3 years ago
3 0
9x - 71 > 3(3x - 7u)
Expand the brackets
9x - 71 > 9x -21u
Subtract 9x from both sides
-71 > -21u
multiply by -1 to make positive
71 > 21u
Divide both sides by 21 to get what u equals
71/21 = 3.3....
U must be more than 71/21 or 3.3

You might be interested in
Why is it sometimes best to make a phone call or personal contact when conveying sensitive information?
kupik [55]
It would be best sometimes to <span>make a phone call or personal contact when conveying sensitive information because in this way you can make sure that the information is conveyed directly to the person. Hope this answers the question. Have a nice day.</span>
3 0
3 years ago
Find the measurement of each liquid in the graduated cylinders. and do not forget your UNITS!!! :)
beks73 [17]

Answer:

1st-50ml

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Is there a pattern behind prime numbers?
Trava [24]

Answer:

A clear rule determines exactly what makes a prime: it's a whole number that can't be exactly divided by anything except 1 and itself. But there's no discernible pattern in the occurrence of the primes. ... That's because after the number 5, there are only four possibilities — 1, 3, 7 and 9 — for prime last digits

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A dozen apple costs $2.55.at this rate how much would 8 apple cost?
vladimir2022 [97]
12=2.55 how about 8
8 x 2.55 divided by 12=$1.7
8 0
3 years ago
A picture is x+20 cm in width and 2x-10 cm in length. The frame is a
Jobisdone [24]

Answer:

A = 1100cm^2

Step by step Explanation:

given the dimensions of width and length of the picture are x+20 by 2x-10 and the frame is a constant 5 cm wider from the edge of the picture to the frame, than the area of the frame is defined as (x+30)(2x)-(x+20)(2x-10) = 30x+200.

If the width is equal to the length which I assume is true if the width is constant.

than x+30=2x, which means x = 30.

if this is true than 30(30)+200 = 1100cm^2

8 0
3 years ago
Other questions:
  • How do u work 9n=5? Just write it the way u worked it
    11·2 answers
  • The first five terms in a pattern are shown below.
    10·2 answers
  • The Statue of Liberty is 305.5 feet tall from the foundation of its pedestal to the top of its torch Isla is building a model of
    9·2 answers
  • What is 5x+2-4x+3 please I need help
    9·1 answer
  • The approximate number of Calories, C, that an animal needs each day is given by C = 72m^3/4, where m is the animal's mass in ki
    10·1 answer
  • If an relationship is proportional what is the missing value from the table?​
    15·1 answer
  • Out of 1,200 students surveyed, 92% of them like country music. How many students like rap music?
    7·2 answers
  • If a, b, c are in A.P. show that<br>a (b + c)/bc,b(c + a) /ca, c(a-b )/bc<br>are in A.P.<br>​
    8·1 answer
  • If you can tell me something that is fun you can get a brainiest!!!!!!! You have 23 hrs to answer
    5·1 answer
  • Can someone help me pls?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!