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
Andru [333]
2 years ago
7

Please do 7 and 8….

Mathematics
1 answer:
LuckyWell [14K]2 years ago
7 0

Answer: 7. 35, 8. 42.50

Step-by-step explanation:

7. First, convert 4 3/8 to an improper fractoin.

4 3/8 = 35/8

Now divide 35/8 by 1/8 and you get 35.

8. Each ounce increased 5 dollars, so 8.5 ounces increased 8.5*5 dollars = $42.50

You might be interested in
What is 1 1/2 subtracted from the sum of 4 2/3 and 5 2/5
olchik [2.2K]

Answer:

7 9/10

Step-by-step explanation:

First, we need to add 4 2/3 and 5 2/5.

We should begin with converting the fractions into improper fractions.

4 2/3 + 5 2/5= 14/3 + 27/5

Now, we find the common denominator

= 70/15 + 71/15

We can add:

= 141/15

And simplify. 

= 9 2/5

Finally, we subtract 1 1/2 from 9 2/5

Your answer is 7 9/10. Hope this helps!

Please Mark Brainliest

7 0
2 years ago
Read 2 more answers
A spinner is divided into 10 equal sections numbered 1 through 10. If the arrow is spun once, what is the probability it will la
yarga [219]
The correct answer is A) 2/5

That is because the probability of it is equal to the number of numbers larger than 6 divided by 10, which is 4/10, or 2/5 when reduced.
4 0
3 years ago
A newspaper published an article about a study in which researchers subjected laboratory gloves to stress. Among 225 vinyl? glov
romanna [79]

Answer:

a)

H₀: ρ₁ ≤ ρ₂

H₁: ρ₁ > ρ₂

b)

Z= \frac{('p_{1} - 'p_{2}) - (p_{1} - p_{2})}{\sqrt{'p(1-'p)[\frac{1}{n_1} + \frac{1}{n_2} ]} } ≈ N(0;1)

c)

p-value < .00001

d)

Reject the null hypothesis.

The population proportion vinyl gloves that leak viruses is greater than the population proportion of latex gloves that leak viruses.

Step-by-step explanation:

Hello!

The objective is to test if the population proportion of vinyl gloves that leak viruses (population 1) is greater then the population proportion of latex gloves that leak viruses (population 2).

Sample 1 (Vinyl)

n₁= 225

Sample proportion 'ρ₁= 0.60

Sample 2 (Latex)

n₂= 225

Sample proportion 'ρ₂= 0.09

Pooled proportion: 'ρ= (x₁+x₂)/(n₁+n₂)= ( 'ρ₁ + 'ρ₂)/2= (0.60 + 0.09)/2= 0.345 ≅0.35

The hypothesis is:

H₀: ρ₁ ≤ ρ₂

H₁: ρ₁ > ρ₂

α: 0.05

The statistic to use is a pooled Z

Z= \frac{('p_{1} - 'p_{2}) - (p_{1} - p_{2})}{\sqrt{'p(1-'p)[\frac{1}{n_1} + \frac{1}{n_2} ]} } ≈ N(0;1)

The critical region is one-tailed to the right (positive), the critical value is:

Z_{1-\alpha } = Z_{0.95} = 1.64

If Z ≥ 1.64, you will reject the null hypothesis.

If Z < 1.64, you will not reject the null hypothesis.

Z= \frac{(0.6 - 0.09) - (0}{\sqrt{0.35(1-0.35)[\frac{1}{225} + \frac{1}{225} ]} } = 11.34

Since the calculated Z- value is greater than the critical value, the decision is to reject the null hypothesis. The population proportion vinyl gloves that leak viruses is greater than the population proportion of latex gloves that leak viruses.

P-value approach:

p-value < .00001

If you compare with the level of signification, you reach the same decision.

I hope it helps!

8 0
3 years ago
Zeke has five dollars less than half of what Lilliana has. If Lilliana money is given by m. What expression correctly represents
Fudgin [204]
(m/2)-5= Zeke’s money
6 0
3 years ago
Plz need help will be great
lina2011 [118]
A. Because you don’t cross over the same point twice
7 0
3 years ago
Other questions:
  • Find the distance between (-1,2) and (2,-3)
    9·1 answer
  • Abby can buy an 8-pound bag of dog food for $7.40 or a 4-pound bag of the same dog food for $5.50. Which is the better buy.
    7·2 answers
  • A hockey team is convinced that the coin used to determine the order of play is weighted. The team captain steals this special c
    10·1 answer
  • Marissa got an 85 on her math quiz she got 34 questions correct how many questions are on the quiz
    11·1 answer
  • Ms. Jackson is driving from south bend to Indianapolis. She measures a distance of 4.3 cm between the cities on her Indiana road
    7·2 answers
  • Write an algebraic
    15·1 answer
  • What is the exact volume of the sphere?. . A.. 463.01 m3. . B.. 147.456 m3. . C.. 96.46 m3. . D.. 36.868 m3
    8·2 answers
  • Identify the percent of change as an increase or a decrease.<br><br>1/4 to 1/2​
    12·2 answers
  • Will you please help me solve this ​
    6·1 answer
  • Find the area of the circle. round your answer to the nearest hundredth<br> radius= 2cm
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!