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2 years ago

Theo had 2 blocks. Then he got 2 more blocks from Ray and some more blocks from Lia. Now Theo has 12 blocks.

Mathematics

2 answers:

tangare [24]2 years ago

8 0

Answer:

2+2+b=12

Step-by-step explanation:

You already know the exact amount you have and then given 2 more, then the next person gave you more blocks but you dont know the amount, which would be the variable b and the total is 12

Oliga [24]2 years ago

6 0

Answer:

The answer is D: 2+2+b=12

Step-by-step explanation:

Hope this helps!

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Answer:

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Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

taking common (a-b)

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2 years ago

Ravi made 4 identical necklaces each having beads and a pendant. The total cost of the beads and pendants are for all four neckl

vekshin1

Answer:

Each pendant cost $3.30

Step-by-step explanation:

You would subtract $13.20 from $26.20 and get $13.20. You take $13.20 and divide it by 4. You would get $3.30.

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3 years ago

The amount of soda a dispensing machine pours into a 12-ounce can of soda follows a normal distribution with a mean of 12.30 oun

Ugo [173]

Answer: A) .1587

Step-by-step explanation:

Given : The amount of soda a dispensing machine pours into a 12-ounce can of soda follows a normal distribution with a mean of 12.30 ounces and a standard deviation of 0.20 ounce.

i.e. $\mu=12.30$ and $\sigma=0.20$

Let x denotes the amount of soda in any can.

Every can that has more than 12.50 ounces of soda poured into it must go through a special cleaning process before it can be sold.

Then, the probability that a randomly selected can will need to go through the mentioned process = probability that a randomly selected can has more than 12.50 ounces of soda poured into it =

$P(x>12.50)=1-P(x\leq12.50)\\\\=1-P(\dfrac{x-\mu}{\sigma}\leq\dfrac{12.50-12.30}{0.20})\\\\=1-P(z\leq1)\ \ [\because z=\dfrac{x-\mu}{\sigma}]\\\\=1-0.8413\ \ \ [\text{By z-table}]\\\\=0.1587$

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2 years ago

write an equation in slop-intercept form for a line that is perpendicular to the line y= -5x-3 and has a y-intercept of 6.

jenyasd209 [6]

Answer:

The equation of the line would be y = 1/5x + 6

Step-by-step explanation:

First, to find the slope of a perpendicular line, you need to find the opposite and reciprocal of the original slope. Since the original is -5, we first change the sign (which makes it just 5). Now we take that 5 and flip it to get 1/5.

Now that we have the slope as 1/5, we can use that and the intercept in slope-intercept form to get the equation.

y = mx + b

y = 1/5x + 6

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2 years ago