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
ella [17]
3 years ago
10

Use substitution to solve the system of equations.

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
6 0
Here all you have to do is substitute, so the answer your looking for is d
You might be interested in
Michmoo Computer Company sells computers and computer parts by mail. The company assures its customers that products are mailed
Anastaziya [24]

Answer: (60.858, 69.142)

Step-by-step explanation:

The formula to find the confidence interval for mean :

\overline{x}\pm z_c\dfrac{\sigma}{\sqrt{n}} , where \overline{x} is the sample mean , \sigma is the population standard deviation , n is the sample size and z_c is the two-tailed test value for z.

Let x represents the time taken to mail products for all orders received at the office of this company.

As per given , we have

Confidence level : 95%

n= 62

sample mean : \overline{x}=65 hours

Population standard deviation : \sigma=18 hours

z-value for 93% confidence interval: z_c=1.8119  [using z-value table]

Now, 93% confidence the mean time taken to mail products for all orders received at the office of this company :-

65\pm (1.8119)\dfrac{18}{\sqrt{62}}\\\\ 65\pm4.142\\\\=(65-4.142,\ 65+4.142)\\\\= (60.858,\ 69.142)

Thus , 93% confidence the mean time taken to mail products for all orders received at the office of this company : (60.858, 69.142)

8 0
3 years ago
Can someone help me with the area of this please
Georgia [21]

Answer:

60 meters

Step-by-step explanation:

15x4=60 ez maths cmon

7 0
3 years ago
Read 2 more answers
The area of a rectangular gymnasium is (5x+5x) square feet. If it is 5x feet wide, what is the length, in feet?
Amiraneli [1.4K]

Answer:

Step-by-step explanation:

Area = L x W      gym area is (5x + 5x) ft²      if   W = 5x      Find the L

Area = L x W       divide both sides by W

Area/W  = (L x W) / W

Area/W  =  L  =  Area/W

    L = Area/W

       =  (5x + 5x) / (5x)

       =  5x( 1 + 1) / 5x

       =  5x(2) / 5x                      the 5x's cancel each other  5x/5x = 1

       =   2 ft          I got 2.  I suspect the 12 was a typo and should have been 2

5 0
2 years ago
Help me please I got to finish it
Scorpion4ik [409]

Answer:

\frac{52}{63}

4 0
2 years ago
Divide *° -3x– 10x+ 24 by X-2
statuscvo [17]

Answer:

- 13  - \frac{2}{x - 2}

Step-by-step explanation:

<h3>\frac{ - 3x - 10x + 24}{x - 2}</h3><h3>\frac{ - 13x + 24}{x - 2}</h3>

- 13  - \frac{2}{x - 2}

<h3>Hope it is helpful...</h3>
7 0
2 years ago
Other questions:
  • The life times of light bulbs produced by a particular manufacturer have a mean of 1,200 hours and a standard deviation of 400 h
    14·1 answer
  • Simplify 3√20/√5<br><br> a)25/4<br> b)6<br> c)√5/5<br> d2√3/15
    14·1 answer
  • Seven ninths as a decimal
    7·2 answers
  • Alex swims at an average speed of 45 m/min. How far does he<br> swim in 1 min 24 sec?<br> m
    14·2 answers
  • Nate blows up 30 balloons for his birthday party. Nate blows 6 fewer balloons than Miguel. How many balloons does Miguel blow up
    10·2 answers
  • The value of a professional basketball player's autograph rose 30% in the last year. It is now worth $273.00. What was it worth
    15·2 answers
  • How would I solve this The number of months in y years
    8·2 answers
  • Rewrite the expression by combining like terms. 3y + 5x2 + 10x + 2x2 + 15x – 3y​
    9·1 answer
  • I need to find the area. (please help me quick &amp; the answer and explanation plz) POINTS: 15! please give real answers!!!!
    6·2 answers
  • CAN SOMEONE HELP ME WITH THESE 2 questions please don’t answer if u don’t know !! Will mark u brainlist and will give u points !
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!