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3 years ago

5

Help plz I really need help could you show your work if you do it plz.

1 answer:

Vika [28.1K]3 years ago

7 0

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A stores conducting an inventory. The shoe department manager determines there are 378 pairs of children shoes, 404 pairs of lad

arlik [135]

Answer:

1016

Step-by-step explanation:

378+404+234

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3 years ago

To furnish a room in a model home, an interior decorator is to select 2 chairs and 2 tables from a collection of chairs and tabl

Free_Kalibri [48]

Answer:

A. 6

Step-by-step explanation:

Let n represent number of tables.

We have been given that to furnish a room in a model home, an interior decorator is to select 2 chairs and 2 tables from a collection of chairs and tables in a warehouse that are all different from each other. There are 5 chairs in the warehouse and if 150 different combinations are possible.

Since 2 chairs are being selected from 5 chairs, so we can choose 2 chairs in $5C2$ ways.

There are n tables and we can choose 2 tables from n table in $nC2$ ways.

We can represent our given information in an equation as:

$5C2\times nC2=150$

$\frac{5!}{2!(5-2)!}\times \frac{n!}{2!(n-2)!}=150$

$\frac{5*4*3!}{2*1*3!}\times \frac{n!}{2!(n-2)!}=150$

$10\times \frac{n!}{2!(n-2)!}=150$

$\frac{n!}{2!(n-2)!}=15$

$\frac{n!}{2*1*(n-2)!}=15$

$\frac{n*(n-1)*(n-2)!}{2*(n-2)!}=15$

$\frac{n(n-1)}{2}=15$

$n(n-1)=30$

$n^2-n=30$

$n^2-n-30=0$

$n^2-6n+5n-30=0$

$n(n-6)+5(n-6)=0$

$(n-6)(n+5)=0$

$(n-6)=0\text{ (or) }(n+5)=0$

$n=6\text{ (or) }n=-5$

Since tables cannot be negative quantity, therefore, 6 tables are in the warehouse.

8 0

3 years ago

The difference of Rick's height and 16 is 57. the variable r equals rick's height

anyanavicka [17]

16 + r = 57 .
so ricks height is 48

7 0

4 years ago

Read 2 more answers

Sophie has 3/5 quart of lemonade if she divides the lemonade into glasses that hold 1/25 quart how many glasses can Sophie fill?

Juli2301 [7.4K]

the answer to this question is 12!

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3 years ago

If percent markup on cost and selling price is know, one is able to compute the....

Alborosie

I think it's B: the amount of markdown.

6 0

4 years ago