3 years ago

Given that 2x+7=27 and 3x+1=28, does 2x+7=3x+1? explain

Mathematics

1 answer:

diamong [38]3 years ago

5 0

\left[x \right] = \left[ 6\right][x]=[6] totally answer

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What is the simplified expression for 6 (2 (y + x))?

wel

Answer:
12(y + x)

Explanation:
6(2 (y + x))
6 • 2(y + x)
12(y + x)

5 0

3 years ago

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A third grade class has 16 girls and 15 boys a fourth grade class has 18 boys and 15 girls when picking for PE captains will mak

Mkey [24]

Answer:

$\dfrac{90}{341}$

Step-by-step explanation:

3rd grade:

Number of girls = 16

Number of boys = 15

Total number of students = 31

4th grade:

Number of girls = 15

Number of boys = 18

Total number of students = 33

Formula for probability of an event E can be observed as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

Probability of picking a boy from 3rd grade, $P_{1} = \dfrac{15}{31} ..... (1)$

Probability of picking a boy from 4th grade, $P_{2} = \dfrac{18}{33} ..... (2)$

These are two independent events of picking a boy from 3rd grade and 4th grade.

So, probability the captain chooses 2 boys in the first pick can be found by multiplying (1) and (2) above.

$P = P_{1} \times P_{2}\\\Rightarrow \dfrac{15}{31} \times \dfrac{18}{33}\\\Rightarrow \dfrac{90}{341}$

3 0

3 years ago

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Does anyone know the answer for this?

Alla [95]

Answer:

Up 2, right 5

Step-by-step explanation:

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3 years ago

Please help what is the answer a b c or d

bonufazy [111]

Answer:

Step-by-step explanation:

I did test rf

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3 years ago

Wich expression is equivelent to 4(3+5)-3times9 to the power of 2

77julia77 [94]

Answer:

-211

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8 0

3 years ago