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Ludmilka [50]
3 years ago
7

There are 12 math classrooms. Each classroom needs 2 pencil sharpeners. Each pencil sharpener costs $2.45, including tax. How mu

ch does it cost to purchase enough pencil sharpeners for the math classroom? *
Mathematics
1 answer:
disa [49]3 years ago
3 0

Answer:

$58.80 for 12 math classrooms

Step-by-step explanation:

$2.45 x 2 = $4.90

12 x $4.90 = $58.80

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A system of two linear inequalities is graphed as shown, where the solution region is shaded.
Zinaida [17]

Answer:

(-3,2) is located in the solution region.

Step-by-step explanation:

3 0
3 years ago
Find the first term and the common ratio <br>third term =6 and seventh term= 96​
mamaluj [8]

Answer:

First term a₁ = 3/2 and common ratio r = 2

Step-by-step explanation:

We need to find the first term and common ratio while we are given third term = 6 and seventh term = 96

Since common ratio is required so, the sequence is geometric sequence

The formula used is: a_n= a_1r^{n-1}

We are given: third term = 6 i,e

a_3=a_1r(3-1)\\6=a_1r^2----eq(1)

Seventh term = 96

a_7=a_1r(7-1)\\96=a_1r^6----eq(2)

Dividing eq(2) and eq(3)

\frac{96}{6}=\frac{a_1r^6}{a1r2}\\16=\frac{r^6}{r^2}\\16=r^{6-2}\\=> r^4=16\\Taking \ fourth \ root\\ r=2,-2,2i,-2i\\ \ We \ will \ consider \ only \ positive \ value \ of \ r \ i.e \ \textbf{ r= 2}

So, Common Ratio r = 2

Finding First term using eq(1)

a_3=a_1r^2\\6=a_1(2)^2\\6=a_1(4)\\a_1= \frac{6}{4}\\a_1= \frac{3}{2}

So, First term a₁ = 3/2 and common ratio r = 2

6 0
3 years ago
3x-8=25 solve for x
VMariaS [17]
Add 8 to both sides
3x=33
Divide both sides by 3 
x=11

7 0
3 years ago
Read 2 more answers
23 kg of potatoes cost $138. How much would 7 kg cost? lol i haven't done this in a while and there just now telling us to do it
Aleonysh [2.5K]

Answer:

$42

Step-by-step explanation:

138/23 = $6 per kg

6*7 = 42

8 0
3 years ago
What is the vertex of the function?
LiRa [457]

Answer:

(-3, -3) ?

Step-by-step explanation:

it looks like you already answered your question

7 0
3 years ago
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