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3 years ago

Divide 310AED among A B C in the ratio 2:3:5

Mathematics

2 answers:

Zarrin [17]3 years ago

7 0

Answer:

A=62 B=93 C=155

Explanation

You first add all the ratios and get 10.

To get the first ratio you write down 2/10 ×310/1 then you will get 31 ×2 you get 62

For you to get the second ratio now you do the same as the first ratio 3/10×310/1= 31 ×3 you get 93.

You do the same for the third ratio.

5/10×310/1= 31×5 you will get 155.

This is how you solve it. Sometimes you could get 4 or 5 ratios but what does not change us how you work the answer. This applies to every ratios.

Shkiper50 [21]3 years ago

5 0

Answer:A=62AED B=93 C=155

Step-by-step explanation:

You add all of the numbers to split between (2,3,5) you get 10

then you divided 310 by 10 which is 31

then you times 2 by 31=62 (a)

3x31=93 (b)

5x31=155 (c)

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trapecia [35]

Answer:

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4 years ago

If the set U = {all positive integers} and set A = {x|x ∈ U and x is an odd positive integer}, which describes the complement of

dlinn [17]

Answer: Choice D) set of even integers

=======================================================

Explanation:

U = universal set = {all positive integers} = {1, 2, 3, 4, 5, ...}

A = {stuff in set U that is odd} = {1, 3, 5, 7, 9, ...}

$A^c$ = {stuff in set U but NOT from set A} = {2, 4, 6, 8, ...}

$A^c$ = {set of even numbers from set U}

In set theory, the complement is simply the complete opposite. If the number 7 is found in set A for instance, then 7 is not going to live in the complement $A^c$

The opposite of the odd numbers is the set of even numbers.

Therefore, we go for choice D as our final answer.

Side note: if we union set A with its complement $A^c$ then we get the universal set as a result. $A \cup A^c = \text{universal set} = \text{set of all positive integers}$

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2 years ago

What does 13.012 + 8.9 + 3.09 Equal Ppl PLZ HELP MEH

pav-90 [236]

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3 years ago

Read 2 more answers

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Mekhanik [1.2K]

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Step-by-step explanation:

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3 years ago

Accident rate data y1, ...., y12 were collected over 12 consecutive years t=1,2,...12. At over 12 consecutive years t = 1,2,...,

e-lub [12.9K]

Answer:

The correct option is;

The accident rate is a linear model function of t. After t = 7, the slope changes, with the two lines intersecting at t = 7

Step-by-step explanation:

The given parameters are;

Accident rate data = y₁, y₂, y₃, y₄, y₅, y₆, y₇, y₈, y₉, y₁₀, y₁₁, y₁₂

Time at which data was recorded = t₁, t₂, t₃, t₄, t₅, t₆, t₇, t₈, t₉, t₁₀, t₁₁, t₁₂

Accident rate equation is a linear model given as follows;

y = X·B + E

Where:

y = Accident rate

X = Slope of linear model

B = Year

E = y intercept of model

At the end of the 6th year, a change in a regulation that affects safety, hence accident rate occurred given as follows;

Before the change in safety regulations occurred for year t < 7 y₁ = X₁B + E₁

After the change in safety regulations occurred for year t < 7 y₂ = X₂B + E₂

Therefore the slope changes from X₁ to X₂ after t = 7 with the second linear model starting from the end of the first linear model making the two lines intersect at t = 7 (the beginning of year 7)

Hence the correct option is that "The accident rate is a linear model function of t. After t = 7, the slope changes, with the two lines intersecting at t = 7."

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3 years ago