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
KatRina [158]
3 years ago
11

If - 7 = 9 + x, then -3x + 5 = ?

Mathematics
1 answer:
Vikentia [17]3 years ago
8 0

Answer:

53

Step-by-step explanation:

At first,

- 7 = 9 + x

By subtracting 9 from both sides, we get

-7-9=9+x-9

-16=x

Now,

By substituting the value of x in -3x + 5 , we get

-3x + 5

-3×(-16)+5

48+5

53

You might be interested in
In a random sample of 30 people who rode a roller coaster one day, the mean wait time is 46.7 minutes with a standard deviation
Rainbow [258]

Answer: C. (29,\ 37.8)

Step-by-step explanation:

The confidence interval for difference of two population mean is given by :-

\overline{x}_1-\overline{x}_2\pm z_{\alpha/2}\sqrt{\dfrac{s_1^2}{n_1}+\dfrac{s_2^2}{n_2}}

Given : Level of significance : 1-\alpha:0.99

Then , significance level : \alpha: 1-0.99=0.01

Critical value : z_{\alpha/2}=z_{0.005}=2.576

n_1=30\ ;\ n_2=50\\\\\overline{x}_1=46.7\ ;\ \overline{x}_2=13.3\\\\s_1=9.2\ ;\ s_2=1.9

46.7-13.3\pm(2.576)\sqrt{\dfrac{9.2^2}{30}+\dfrac{1.9^2}{50}}\approx33.4\pm4.38=(29.02\ ,37.78)\approx(29,\ 37.8)

Hence,  a 99% confidence interval for the difference between the mean wait times of everyone who rode both rides (29,\ 37.8)

5 0
3 years ago
HELP ASAP
klasskru [66]

Answer:

the answer is D. she loses 75

Step-by-step explanation:

8 0
3 years ago
Campbell Middle school has 912 students.How many computers are in this schools computer lab?
Aleksandr [31]
You can't really determine the amount of computers from this question, they're obviously not going to have one computer for everyone so half third, or even a fourth of the school population
3 0
3 years ago
Read 2 more answers
3(2x + 6) = 2(4x – 5)
maxonik [38]

Answer:

x = 14

....................              

6 0
3 years ago
How are the units of measurement called radiance related to the radius of a circle?
Pavlova-9 [17]

Answer:

By definition, considering a unit circle (circle centered at origin and of radius 1) the length of an arc is equal to the measurement in radians (the SI unit for measuring angles) of the angle that it subtends (to be opposite to). The length of the arc is equal to the radius of the circle.

8 0
3 years ago
Other questions:
  • What is the mean of this data set? If necessary, round your answer to the
    5·1 answer
  • What are the equations that represent the cost of each gym as a function of the number of months?
    15·2 answers
  • Find the sum.<br> 19+(-19)
    15·1 answer
  • V^2-8v=0 solving quadratic equation
    13·1 answer
  • IM BEGGING PLEASE SOMEONE HELP
    5·1 answer
  • In London, half of the days have some rain. The weather forecaster is correct 2/3 of thetime, i.e., the probability that it rain
    13·2 answers
  • The cost of one apple and one banana at the school canteen is $1 and the cost of 3 apples and 2 bananas is $2.40. Find the cost
    15·2 answers
  • A water park keeps track of the number of times each visitor goes down water slides during their visit . The data shows the numb
    10·2 answers
  • What comes in the sequence? seed, plant, blossom,______A)apple B)branches C)fruit D)leaves​
    7·1 answer
  • The amount of water an electric
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!