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Mars2501 [29]
3 years ago
5

can someone help me with this

Mathematics
1 answer:
stiks02 [169]3 years ago
8 0
90000
Haha boogaloo booga
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8x+10y=<br> 8x+10y=<br> \,\,70<br> 70
notsponge [240]

Answer:

54

Step-by-step explanation:

4 0
3 years ago
Can yall please help me
Andru [333]

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The profits in hundreds of dollars, P(c), that a company can make from a product is modeled by a function of the price, c, they
Valentin [98]

Answer:

6400

Step-by-step explanation:

Given the profit function ;

P(c) = –20c2 + 320c + 5,120

The maximum value is given by :

f(h) ; where, h = - b /2a

From P(C) ; a = - 20 ; b = 320

h = - b / 2a = - 320 / 2(-20) = - 320 / 40 = 8

c = h

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4 0
3 years ago
There are as many girls as there are boys in a class. 8 girls went for a dance competition. now there are twice as many boys as
Rashid [163]
Let the number of girls be x and the number of boys be y

The number of boys is the same as the number of girls.
x = y 
The number of boys is twice the number of girls when 8 girls left.
2(x - 8) = y


x = y ---------------- (1)
2(x - 8) = y -------- (2)

Sub (1) into (2)

2(y - 8) = y
2y - 16 = y
2y - y = 16
y = 16
There were 16 boys and 16 girls initially.

16 + 16 = 32 
There were a total of 32 students in the class initially. 



4 0
3 years ago
If I take 25% of water out of 6.5 gallons how many gallons do I take out
iogann1982 [59]

Answer:

1.625 gallons

Step-by-step explanation:

.25(25%) times 6.5

6 0
3 years ago
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