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kati45 [8]
3 years ago
6

Javier asks his mother how old a tree in their yard is. His mother says, “The sum of 10 and two-thirds of that tree’s age, in ye

ars, is equal to 50.” Javier writes the equation (10 + two-thirds) a = 50, where a is the tree’s age in years. His equation is not correct. What error did he make? The variable a should be multiplied by 10 only, and then added to Two-thirds. The variable a should be multiplied by Two-thirds only and then added to 10. The variable a should be multiplied by 50, not by the sum of 10 and Two-thirds. The variable a should be multiplied by Two-thirds and 50 and set equal to 10.
Mathematics
2 answers:
Mama L [17]3 years ago
8 0

Answer:

Option 2 The variable A should be multiplied by 2/3 only and then added to 10.

Step-by-step explanation:

Kisachek [45]3 years ago
6 0

Answer:

Option 2:

The variable a should be multiplied by Two-thirds only and then added to 10.

Step-by-step explanation:

Let the age be a

The sum of 10 and two-thirds of that tree’s age:

10 + ⅔a

is equal to 50:

10 + ⅔a = 50

⅔a = 40

a = 60

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A baseball has a 15 cm diameter what is the voulme of the contents of the ball
ddd [48]

Answer:

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Step-by-step explanation:

The formula for finding the volume of a spherical object is 4/3(π)(r^3),where r is the radius of the object. But here only the diameter was given. And diameter=2(r), where r is radius.

So to find the radius, divide the diameter by 2. Since by making r the subject of the equation you get r=diameter/2.

Using the formula

4/3(π)(r^3)=(4π((15/2)^3))/3

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=(4π(421.875))/3

Since π is 3.141592654

(4π(421.875))/3=1/3(4(3.141592654)(421.875))

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7 0
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2 years ago
There are three boxes: one with two golden coins, one with two silver coins, and one with one golden coin and one silver coin. A
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Answer:

Step-by-step explanation:

From Bayes' theorem is stated mathematically as the following equation:[2]

{\displaystyle P(A\mid B)={\frac {P(B\mid A)\,P(A)}{P(B)}},}

where A and B are events and P(B) ≠ 0.

P(A) and P(B) are the probabilities of observing A and B without regard to each other.

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P(B | A) is the probability of observing event B given that A is true.

At this point, go through the attached file before you continue with part B.

Part B)

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hence

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