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
Keith_Richards [23]
3 years ago
14

_____ + 5 3/4 = 9 5/8please help you will get 75 points​

Mathematics
2 answers:
LuckyWell [14K]3 years ago
7 0

Answer:

3 7/8

Step-by-step explanation:

_____ + 5 3/4 = 9 5/8

x + 5 3/4 = 9 5/8

Subtract 5 3/4 from each side

x + 5 3/4 - 5 3/4 = 9 5/8 - 5 3/4

x = 9 5/8 - 5 3/4

Get a common denominator of 8

5 3/4 *2/2 = 5 6/8

x = 9 5/8 - 5 6/8

We need to borrow 1 from the 9 in the form of 8/8

x= 8 + 8/8+ 5/8 - 5 6/8

x = 8  13/8 - 5 6/8

  = 3 7/8

andrey2020 [161]3 years ago
4 0

Answer:

\Large \boxed{3\frac{7}{8}}

Step-by-step explanation:

Let the missing value be x.

x+5\frac{3}{4} =9 \frac{5}{8}

Subtract 5 \frac{3}{4} from both sides.

x =9 \frac{5}{8} - 5 \frac{3}{4}

Converting the mixed fractions to improper fractions.

x =\frac{77}{8} - \frac{23}{4}

Make denominators equal and subtract.

x =\frac{77}{8} - \frac{46}{8}

x =\frac{77-46}{8}

x =\frac{31}{8}

Converting the improper fraction into a mixed fraction.

x=3\frac{7}{8}

You might be interested in
Tell wether the angles are adjacent or vertical. Then find the value of x.
Gre4nikov [31]

Answer:

The angles are vertical

Step-by-step explanation:

x+42+2x+1=180

put the like terms together i.e 2x+x+42+1=180

you get: 3x+43=180

Take 43 to th other side of 180 i.e 3x=180-43 i.e (180-43=137)

You get 3x=137

Divide both sides by 3

you get x=45.666666666667(Round off to get 45.67)

Substitute the value of x to the angles

x+42(45.67+42=87.67)

2x+1(2(45.67)+1=92.34

Add 87.67+92.34=180

THis shows that the angles are vertical

8 0
2 years ago
Help asap please, forgot how to do math :)
Sergio039 [100]

Answer:

x = 8

Step-by-step explanation:

A common pythagorean triplet is 7, 8, 9

3 0
2 years ago
Read 2 more answers
Evaluate 5 + (-4) +(-7) + 2.
Arisa [49]

Answer:

-4

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A nut-raisin mix costs $5.26 a pound. Rashid buys 15.5 pounds of the mix for a party. Rashid’s estimated cost of the nut-raisin
Verdich [7]

Answer:

D.$80

Step-by-step explanation:

$5.26 x 15.5= $81.53

The closest amount to $81.53 is D.$80

7 0
2 years ago
In order to comply with the Environmental protection Agency (EPA) regulations of the Clean Water Act, a large agricultural compa
Liula [17]

Answer:

t=\frac{0.505-0.49}{\frac{0.12}{\sqrt{51}}}=0.893  

p_v =P(t_{50}>0.893)=0.1881  

If we compare the p value and a significance level assumed \alpha=0.05 we see that p_v>\alpha so we can conclude that we FAIL to reject the null hypothesis, and the actual true mean is not significantly higher than 0.49 units.  

Step-by-step explanation:

Data given and notation

\bar X=0.505 represent the sample mean  

s=0.12 represent the standard deviation for the sample

n=51 sample size  

\mu_o =0.49 represent the value that we want to test  

\alpha=0.05 represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses to be tested  

We need to conduct a hypothesis in order to determine if the average nitrogen level dos not exced 0.49 units, the system of hypothesis would be:

Null hypothesis:\mu \leq 0.49  

Alternative hypothesis:\mu > 0.49  

Compute the test statistic  

We don't know the population deviation, so for this case is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

We can replace in formula (1) the info given like this:  

t=\frac{0.505-0.49}{\frac{0.12}{\sqrt{51}}}=0.893  

Now we need to find the degrees of freedom for the t distirbution given by:

df=n-1=51-1=50

What do you conclude?  

Compute the p-value  

Since is a right tailed test the p value would be:  

p_v =P(t_{50}>0.893)=0.1881  

If we compare the p value and a significance level assumed \alpha=0.05 we see that p_v>\alpha so we can conclude that we FAIL to reject the null hypothesis, and the actual true mean is not significantly higher than 0.49 units.  

8 0
3 years ago
Other questions:
  • For what numbers x, -2π ≤ x ≤ 2π, does the graph of y = csc(x) have vertical asymptotes?
    10·1 answer
  • 21z^2+85z-26=0<br> Please solve using factoring
    11·1 answer
  • R-12 evaluate if r= negative 3
    10·1 answer
  • Which list of vaules is ordered from lest to greastest?
    11·2 answers
  • Use integration by parts to find the integrals in Exercise.<br> ∫(4x-12)e-8x dx.
    6·1 answer
  • Find the slope of 4x-y=9
    10·1 answer
  • 8. Lisa types 6 pages in 36 minutes. Frank types 5 pages in 30 minutes. Do they type at the same rate? Use a proportion to expla
    14·1 answer
  • Can someone help me pleaseeee !!
    12·1 answer
  • Calculate the product: 45.67 X 32.58
    5·1 answer
  • Select the correct answer.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!