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4 years ago

Please help asap 30 pts

Mathematics

1 answer:

tatiyna4 years ago

5 0

B. By solving for x, you get x=8.39,x=-2.39.

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Divide. Reduce the answer to lowest terms.<br> 3/8 divided by 1/7

fredd [130]

<h3>Answer:</h3>

$2 \frac{5}{8}$ , or $\frac{21}{8}$

<h3>Explanation:</h3>

Use the Keep Change Flip method. Change the sign to multiplication and flip the second fraction. $\frac{3}{8}*\frac{7}{1}$

Multiply the numerators and the denominators separatley. $\frac{3*7}{8*1}=\frac{21}{8}$

This cannot be simplified further, but it can be converted to a mixed number (as opposed to an improper fraction). $\frac{21}{8}=2 \frac{5}{8}$

5 0

4 years ago

Read 2 more answers

A department store surveyed 428 shoppers, and the following information was obtained: 216 shoppers made a purchase, and 294 were

Maurinko [17]

Answer:

(a) 169

(b) 341

(d) 87

Step-by-step explanation:

Consider the Venn diagram below.

The total number of shoppers surveyed is, <em>N</em> = 428.

Number of shoppers who made a purchase, <em>n</em> (P) = 216

Number of shoppers who were satisfied with the service they received,

<em>n</em> (S) = 294

Number of shoppers who made a purchase but were not satisfied with the service, $n(S^{c}\cap P)$ = 47

(a)

The number of shoppers who made a purchase and were satisfied with the service = <em>n</em> (S ∩ P)

$n(S\cap P)=n(P)-n(S^{c}\cap P)\\=216-47\\=169$

(b)

The numbers of shoppers who made a purchase or were satisfied with the service = <em>n</em> (P ∪ S)

$n(P\cup S)=n(P)+n(S)-n(P\cap S)\\=n(P)+n(S)-n(S\cap P)\\=216+294-169\\=341$

(c)

The numbers of shoppers who were satisfied with the service but did not make a purchase = $n(S\cap P^{c})$

$n (S\cap P^{c} ) = n (S) - n (S \cap P)\\=294-169\\=125$

(d)

The number of shoppers who were not satisfied and did not make a purchase = $n(S^{c}\cap P^{c})$

$n(S^{c}\cap P^{c})=N-n(S\cup P)\\=N-n(P\cup S)\\=428-341\\=87$

6 0

3 years ago

When an integer is subtracted from 8 times the next consecutive integer, the difference is -20. Find the value of the lesser int

Assoli18 [71]

Answer: -4

Step-by-step explanation:

Let the integer be x.

$8(x+1)-x=-20\\\\8x+8-x=-20\\\\7x+8=-20\\\\7x=-28\\\\x=-4$

So, the integers are -4 and -3.

7 0

1 year ago

What can be factored from 12g²-27h²

Elenna [48]

Answer: You can use only common factor (3).

Step-by-step explanation:

12g²-27h²

3 . ( 4g² - 9h² )

4 0

3 years ago

Read 2 more answers

Free_Kalibri [48]

Answer:

2 : 3

Step-by-step explanation:

Given ratio of sides of 2 similar triangles = a : b , then

ratio of areas = a² : b²

Here by working in reverse

ratio of areas = 4 : 9 , thus

ratio of sides = $\sqrt{4}$ : $\sqrt{9}$ = 2 : 3

7 0

3 years ago