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3 years ago

Iodine-125 has a half-life of about 60 days.

Mathematics

2 answers:

photoshop1234 [79]3 years ago

6 0

the answer is 15.625mg

andreyandreev [35.5K]3 years ago

4 0

Since it has a half life of 60 days, this means that every 60 days it multiplies by 0.5. Since it asks for 300 days, your equation is 500*(0.5)^5, which is 15.625 mg left after 300 days.

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Ax + bx - 15 = 0;x<br> How do you solve this?

Pani-rosa [81]

Answer:

Step-by-step explanation:

$ax+bx-15=0\\=> (a+b)x-15=0\\=>(a+b)x=15\\=>x=\frac{15}{(a+b)}$

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2 years ago

You sell instruments at a Caribbean music festival. You earn $326 by selling 12 sets of maracas, 6 sets of claves, and xx djembe

ELEN [110]

Answer: An equation we can use to find the number of djembe drums you sold be

$12m+6c+dxx=$326$

Step-by-step explanation:

Let price of maracas be m

Let the price of claves be c

Let the price of djembe drums be d

Number of maracas = 12 sets

Number of clavas = 6 sets

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Total earned amount = $326

According to question,

$12m+6c+dxx=$326$

Hence, an equation we can use to find the number of djembe drums you sold be

$12m+6c+dxx=$326$

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2 years ago

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scoray [572]

True i think but i'm not postive

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2 years ago

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Multiply price per pound by total pounds:

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3 years ago

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Monica [59]

Answer:

y=-5/3x+13.

Step-by-step explanation:

As a line that is perpendicular to anoher line has a slope that is the negative reciprocal of the line's original slope, we know that the slope of our new line is -5/3. As it passes point (12, -7), we can use the point slope formula which is y-y1=m(x-x1). So plug in, y+7=-5/3(x-12) and that gives us y+7=-5/3x+20 which gives our final answer of y=-5/3x+13.

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2 years ago