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
Contact [7]
3 years ago
6

From the set {1, 3, 5}, use substitution to determine which value of x makes the equation true.

Mathematics
1 answer:
mixer [17]3 years ago
5 0
{1,3,5}
ie, sub 1, 3 and 5 for x and see which one is true

20-2(1)=10
20-2=10
18=10
false

20-2(3)=10
20-6=10
14=10
false

20-2(5)=10
20-10=10
10=10

true

answer is 5
You might be interested in
NEED HELP ASAP PLEASEEE
kvv77 [185]

Answer:

.......C........

Step-by-step explanation:

......

6 0
2 years ago
Eric practiced piano and guitar for a total of 8 hours this week. he practiced the piano for 1/4 or that time. how many hours di
AlexFokin [52]
2 because if 1/2 of 8 is 4 and 1/4 of 8 is = to 1/2 of 4, then 1/4 of 8 must be 2.
5 0
3 years ago
Read 2 more answers
A radio station ordered hats and coffee mugs to give away as prizes. A total of 1,000 of these items were ordered, and 3 times a
marshall27 [118]

Answer:

The options are not shown, so i will answer in a general way.

Let's define the variables:

h = number of hats

m = number of mugs.

We know that a total of 1000 items were ordered, then:

h + m = 1000

We also know that we have 3 times more mugs than hats, this can be written as:

m = 3*h

Now we have the system of equations:

h + m = 1000

m = 3*h

To solve these, we usually start by isolating one of the variables in one equation and then replace that in the other equation, but in this case, we already have m isolated in the second equation, then we can replace that in the first equation to get:

h + m = 1000

h + (3*h) = 1000

Now we can solve this equation for h, and find the number of hats ordered.

4*h = 1000

h = 1000/4 = 250

There were 250 hats ordered.

3 0
3 years ago
A researcher is interested in determining the mean energy consumption of a new
Nana76 [90]

Answer:

The most appropriate  value of the critical value is 2.289.

Step-by-step explanation:

We are given that a researcher takes a random sample of 41 bulbs and determines  that the mean consumption is 1.3 watts per hour with a standard deviation of 0.7.

We have to find that when constructing a 97% confidence interval, which would be the most appropriate  value of the critical value.

Firstly, as we know that the test statistics that would be used here is t-test statistics because we don't know about the population standard deviation.

So, for finding the critical value we will look for t table at (41 - 1 = 40) degrees of freedom at the level of significance will be \frac{1 - 0.97}{2} = 0.015 .

Now, as we can see that in the t table the critical values for P = 1.5% are not given, so we will interpolate between P = 2.5% and P = 1%, i.e;

     \frac{0.015 - 0.025}{0.025-0.01}= \frac{\text{Critcal value}-2.021}{2.021-2.423}

So, the critical value at a 1.5% significance level is 2.289.

7 0
3 years ago
Solve each equation.<br> Show all steps<br> 4) -8(-6-5k)=-232
Lubov Fominskaja [6]

the answer is k=4.6. hope this helps

6 0
3 years ago
Other questions:
  • How many solutions are possible for the equation 5(x-3)=7x-2(x+)1
    7·1 answer
  • If f(x) is a linear function, f(3)=1 and f(2)=5, what is the y-intercept?
    8·1 answer
  • A new surgery is successful 85% of the time. If the results of 6 such surgeries are randomly sampled, what is the probability th
    11·1 answer
  • |6m+5|=10<br> That's my question
    7·1 answer
  • diegueno is selling ticket for tge dance. Tickets purchased in advanced cost $4 while tickets at the door cost $6. If 325 ticket
    7·1 answer
  • Am i getting paid for answering questions @eurpoa2344
    9·2 answers
  • How much bigger is 1 1/4 inch than 5/8 inch
    11·1 answer
  • SOMEONE PLEASE HELP FOR A KISS
    13·1 answer
  • An online store that sells baseballs and bats offers free shipping on any order of $20 or more. The baseballs cost $1 each and t
    8·1 answer
  • in one version of a trail mix, there are 3 cups of peanuts mixed with 2 cups of raisins in another version of trail mix, there a
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!