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3 years ago

Fill in the missing term and select the missing description. Simplify any fractions.

Mathematics

1 answer:

mina [271]3 years ago

6 0

Answer:

t = 18/2

= 9

Sorry only thing I know is this!!

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Can you help me in write the perimeter of the triangle in a simplest form

Angelina_Jolie [31]

I got 6x+3

The three equations are:

(2x-6) + (3x+1) + (x+8) =perimeter

2x+3x+x/1x=6x

-6+1+8= 3

8 0

3 years ago

A machine produces 40 spools of nylon each day. On the first day of production, 10 spools have to be thrown away.What percentage

Assoli18 [71]

40 spools = 100%
30 spools = ?

30/40*100
= 75%.

Hope this helps

8 0

3 years ago

The sales tax for an item is $44.10 and it cost $490 before tax. find the sales tax rate. write your answer as a percentage

svetoff [14.1K]

Answer:

9% sales tax

Step-by-step explanation:

44.10/490 =

.09

.09 as a percentage is also 9%

6 0

3 years ago

What is 3(x+2)=15?????

Nitella [24]

Answer:

Step-by-step explanation:

7 0

3 years ago

A total of 1 232 students have taken a course in Spanish, 879 have taken a course in French, and 114 have taken a course in Russ

ElenaW [278]

Answer:

$n(S\cap F \cap R)=7$

Step-by-step explanation:

The Universal Set, n(U)=2092

$n(S)=1232\\n(F)=879\\n(R)=114$

$n(S\cap R)=23\\n(S\cap F)=103\\n(F\cap R)=14$

Let the number who take all three subjects, $n(S\cap F \cap R)=x$

Note that in the Venn Diagram, we have subtracted $n(S\cap F \cap R)=x$ from each of the intersection of two sets.

The next step is to determine the number of students who study only each of the courses.

$n(S\:only)=1232-[103-x+x+23-x]=1106+x\\n(F\: only)=879-[103-x+x+14-x]=762+x\\n(R\:only)=114-[23-x+x+14-x]=77+x$

These values are substituted in the second Venn diagram

Adding up all the values

2092=[1106+x]+[103-x]+x+[23-x]+[762+x]+[14-x]+[77+x]

2092=2085+x

x=2092-2085

x=7

The number of students who have taken courses in all three subjects, $n(S\cap F \cap R)=7$

3 0

3 years ago