4 6/7 + 4 4/5<br> Can u guys me help me pls

Martina buys candy that costs $6 per pound. She will spend more than $60 on candy. What are the possible numbers of pounds she w

Lana71 [14]

Answer:

She will spend over 10 pounds on candy.

Step-by-step explanation:

You have to multiply 6(the amount of money for each candy) with whatever number equals 60(the total she will spend) which is 10(the amount of pounds she is buying) so she will spend more than 10 pounds.

Ex.

6×10=60

5 0

3 years ago

Tony has two shirts, three pairs of pants, and four sports coats. How many different outfits can Tony create?

Akimi4 [234]

Number of shirts = 2
Pants = 3 * 2 = 6
sport coats = 4

Combination = 2 * 6 * 4 = 48

In short, Your Answer would be 48 different outfits

Hope this helps!

4 0

3 years ago

Read 2 more answers

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

4 years ago

What’s the answer???(ONLY ANSWER IF YOU KNOW PLEASE)

zheka24 [161]

Answer:

D) [2,5]

Step-by-step explanation:

Multiply f(x) and g(x) to get (f•g)(x). It is a semicircle that has all values from x=2 to x=5

8 0

4 years ago

Greenfield village is spread across 240 acres of land. Only 37% of the land is used for the exhibits, while the rest of the land

irinina [24]

88.8 acres are used for exhibits

Step-by-step explanation:

Given

Total area of Greenfield = 24 acres

Percentage of lad for exhibits = 37%

Now,

$Acres\ used\ for\ exhibits = 37\%\ of\ 240\\= \frac{37}{100} * 240\\=0.37*240\\=88.8\ acres$

Hence,

88.8 acres are used for exhibits

Keywords: Percentage, percent

Learn more about percentage at:

#LearnwithBrainly

6 0

3 years ago

4 6/7 + 4 4/5 Can u guys me help me pls