3 years ago

What would you use a positive and negative number line for?

Mathematics

1 answer:

AysviL [449]3 years ago

7 0

An integer line which represent both positive and negative numbers

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For a science experiment Marcia dissolved 1.0 kilogram of salt in 3.0 liters of water. For a different experiment, Bobby dissolv

nekit [7.7K]

Marcia dissolved 1 kg of salt in 3 litres of water.
Bobby dissolves 2 pounds of salt in 7 pints of water
2.11 pints = 1 litre
7 pints = 7/2.11
= 3.32 litre
1 pound =0.45 kg
2 pound = o.45*2 kg
= 0.9 kg
So we find that Bobby is dissolving 0.9kg of salt in 3.32 litre of water
Marcia is dissolving 1 kg of salt in 3 litres of water.

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3 years ago

Which of the following type of income should a budge be based on

Aleksandr-060686 [28]

C) Gross Income hope it helps

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4 years ago

How do I solve 3x + 3 = 9?

Arte-miy333 [17]

Ummmmm lets see.... 1? Because then 3 times 1 is 3 + 3 = 9 so that's the only answer that works

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4 years ago

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If Camillo goes with the better buy, how much will he pay for the 25 loaves of bread that he needs for the gourmet peanut butter

jeyben [28]

Answer:

$49.5

Step-by-step explanation:

* means multiply

at $1.98 per loaf

25 * 1.98 =

49.5

3 0

3 years ago

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The equation for the circle is:

noname [10]

(-8,12)

the equation for a circle, centered at (h,k) with radius r is
$(x-h)^2+(y-k)^2=r^2$

so you need to get your equation in this form. completing the square is one way to do this. separating x and y terms you get
$x^2+16x+y^2-24y+159=0$
which can then be rewritten using complete the square
$x^2+16x+64+y^2-24y+144+159=0+64+144$
which is equivalent to
$(x+8)^2+(y-12)^2+159=208 \\ (x+8)^2+(y-12)^2=49$

so your center is the point (-8,12) and the radius would be 7.

8 0

3 years ago