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
maria [59]
2 years ago
5

John has 4/5 gallon of paint. He uses half of that paint for a project. How much paint does John use for his project?

Mathematics
2 answers:
sergiy2304 [10]2 years ago
5 0

Answer:

he used .04 paints

Step-by-step explanation

0.4 is half of 4/5

yawa3891 [41]2 years ago
4 0
0.4 in decimals, 2/5 in fractions.
You might be interested in
Someone claims that the average amount of time that a freshman at TAMU studies is 7 hours. We think it’s higher than that and de
Stels [109]

Answer:

Test statistic t = 5.25

P-value = 0.000002 (one-tailed test)

Step-by-step explanation:

This is a hypothesis test for the population mean.

The claim is that the average amount of time that a freshman at TAMU studies is significantly higher than 7 hours.

Then, the null and alternative hypothesis are:

H_0: \mu=7\\\\H_a:\mu> 7

The significance level is 0.05.

The sample has a size n=49.

The sample mean is M=8.5.

As the standard deviation of the population is not known, we estimate it with the sample standard deviation, that has a value of s=√s^2=√4=2.

The estimated standard error of the mean is computed using the formula:

s_M=\dfrac{s}{\sqrt{n}}=\dfrac{2}{\sqrt{49}}=0.29

Then, we can calculate the t-statistic as:

t=\dfrac{M-\mu}{s/\sqrt{n}}=\dfrac{8.5-7}{0.29}=\dfrac{1.5}{0.29}=5.25

The degrees of freedom for this sample size are:

df=n-1=49-1=48

This test is a right-tailed test, with 48 degrees of freedom and t=5.25, so the P-value for this test is calculated as (using a t-table):

\text{P-value}=P(t>5.25)=0.000002

As the P-value (0.000002) is smaller than the significance level (0.05), the effect is significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that the average amount of time that a freshman at TAMU studies is significantly higher than 7 hours.

6 0
3 years ago
What properties makes the equation ture?
Oksi-84 [34.3K]

Answer:

A.2z+5=5+2z

Associative properties

Distributive properties

Commutative properties

Indentity propertie

5 0
3 years ago
Wax is poured into a mold to make a cube-shaped candle. The length of each edge of the candle is 9 cm.
hram777 [196]

Answer:

The answer is d my wonderful tutor assisted me

8 0
2 years ago
william was taking a math test he spent 3/4 of the class time on the test. when he turned it in he noticed there was 13 minutes
Gemiola [76]

Answer:

47 minutes

Step-by-step explanation:

3/4 of an hour is 45 minutes which makes 15 minutes remain and if it is 13 minutes left the 45 + 2 is 47

7 0
2 years ago
a bakery used 3 cups of flour to make a full size cake if they wanted to make a cake that was 1/2 the size how many cups of flou
Anastasy [175]

1 cup 4oz.  1 cup = 8oz

4 0
3 years ago
Other questions:
  • Find the 25th term of the arithmetic sequence when a1 = -14 and d = -5
    12·2 answers
  • The table shows the cost of a pizza based on the number of toppings. Write a function rule to find the cost for a pizza with x t
    6·2 answers
  • An equation is shown.
    5·1 answer
  • 3) Greta has 2 bags of tiles
    6·1 answer
  • Your cell phone company charges $20 a month plus $0.50 per text message. Write an equation to find your total bill based on the
    7·1 answer
  • Solve for d/3-10=-2<br><br> solve this now plz
    6·1 answer
  • 25 times what times 3 equals 435​
    8·2 answers
  • A company makes electric motors. The probability an electric motor is defective is 4%. What is the probability that a sample of
    6·1 answer
  • Who could help me on the last part
    10·1 answer
  • Michael's car can travel 25 miles on one gallon of gas. The cost of gas is $3.75 per gallon. Which equation could calculate the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!