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GuDViN [60]
3 years ago
8

After 4 new students joined a class, the class had 32 students. Which equation can be used to find n, the number of students in

the class before the 4 new students joined? n A 32 Bn -4 = 32 C 4n = 32 Dn+ 4 = 32​
Mathematics
2 answers:
QveST [7]3 years ago
7 0

Answer: D

Step-by-step explanation: if 4 students joined ur adding to the class hope this helps :)

Readme [11.4K]3 years ago
6 0

Answer:

The answer is D.

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8 books cost \$19.60$19.60dollar sign, 19, point, 60.
snow_tiger [21]

Answer: C=[ (10) x (19.60)÷ (8)]

Step-by-step explanation:

Given , The cost of 8 books = $ 19.60

Then, By UNITARY method , the cost of one book = ( Cost of 8 books ) ÷ ( 8)

i.e. The cost of one book = ($19.60) ÷ ( 8) ...(i)

Now , cost of 10 books = (10) x (Cost of one book)

From (i) , we get

Cost of 10 books =$[ (10) x (19.60)÷ (8)]

Let C be the cost of 10 books ( in dollars) .

So , the equation would help determine the cost of 10 :

C=[ (10) x (19.60)÷ (8)]

7 0
3 years ago
mark earned $8 per hour plus and additional $50 in tips waiting tables on saturday. He earned $165 in all.
fomenos

Answer:

242+165=$407 because $8 per hour = $192 in 24 hours

3 0
3 years ago
Given the quadratic function f(x) = 2x + 5x-12, what is the value of f(-2)?
tino4ka555 [31]

Answer:

-26

Step-by-step explanation:

first substitute -2 for x : 2(-2)+5(-2)-12

-4+-10-12

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-26

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6 0
3 years ago
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IRISSAK [1]
30 x 30 x 30 = 27000
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3 years ago
I need help please help me
Natalija [7]

Answer: D

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