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prisoha [69]
3 years ago
6

Helpppppppppppppppppppp

Mathematics
1 answer:
m_a_m_a [10]3 years ago
4 0

Answer:

option a

1/3=x/42

..........

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Clare volunteers at a local library during the summer. Her work includes putting labels on 750 books.
Marizza181 [45]

Answer:

75 minutes

Step-by-step explanation: 750 divided by 10 is 75

7 0
3 years ago
Read 2 more answers
A right triangle's height is 3 times the length of its base. if the area of the triangle is 486, what is the height?
Irina-Kira [14]
The formula of the area of a triangle:
A_\Delta=\dfrac{bh}{2}
b - the bash - the height
We have:
b - the base3b - the height486 - the area

Substitute:
\dfrac{3b\cdot b}{2}=486\ \ \ |\cdot2\\\\3b^2=972\ \ \ |:3\\\\b^2=324\to b=\sqrt{324}\\\\b=16\to h=3b=3\cdot18=54
Answer: The length of the height is equal 54 units.
4 0
3 years ago
HELP PLEASE !!! :)))))
zlopas [31]

Answer: the person has high blood sugar Levels

Step-by-step explanation:

8 0
3 years ago
Anyone know how to do this?
Gekata [30.6K]

Answer: so i dont but hopefully someone cane help you

Step-by-step explanation:

4 0
3 years ago
10x+4y+ 12z=120 <br> 11x +77y =220 <br> 8x +2y +32z =160
Damm [24]

Answer:

x=8.94 ; y = 1.58; z=2.02

Step-by-step explanation:

solve 10x+4y+12z = 120      →          5x+2y+6z = 60

         8x + 2y +32Z = 160   →           4x+y+16z = 80

To eliminate z multiply first equation by 16 and second equation by 6.

80x+32y+96z = 960

24x+6y+96z =   480

on subtractionwe get 56x+26y = 480

dividing by 2 we get, 28x + 13y = 240

Now we have a given equation 11x + 77y = 220 → x + 7y = 20

solving 28x + 13y = 240 and x + 7y = 20

28x + 13y =240

28x + 216y = 560

subtracting we get, 203y = 320

y = 1.58

x = 8.94

z = 2.02

6 0
3 years ago
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