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3 years ago

Mr Smith had 4 daughters each daughter had a brother.. How children does Mr Smith have?

Mathematics

2 answers:

Anettt [7]3 years ago

7 0

4 girls and 1 boy is the answer

user100 [1]3 years ago

4 0

Answer:

8 children

Step-by-step explanation:

It is given that Mr. Smith had 4 daughters. We also know that for every daughter he had a son. We can represent that as the total number of children= 4 plus 1(4). The first 4 is for the daughters and the 1(4) is 1 brother for each daughter.

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James is two years younger than twice his sister Kate’s Age. Together their ages add up to 19. What is each of their ages?

andreev551 [17]

James'age : 12, Kate's age : 7

<h3>Further Explanation </h3>

One variable linear equation is an equation that has a variable and the exponent number is one. Can be stated in the form:

$\large{\boxed{\bold{ax=b}}}$

ax + b = c, where a, b, and c are constants, x is a variable

Whereas the two-variable linear equation is a linear equation that has 2 variables and the exponent is one

Can be stated in the form:

$\large{\boxed{\bold{ax+by=c}}}$

x, y = variable

In the statement of the task:

James is two years younger than twice his sister Kate’s Age can be stated in the equation: James (J) = 2K (Kate) - 2 ⇒equation 1

Together their ages add up to 19. The equation: J + K = 19 .... 2 ---> J = 19 - K ⇒equation 2

So the solution is:

Equation 2 is entered into equation 1 so that it becomes:

19-K = 2K-2

21 = 3K

K = 7

because J + K = 19, then the value of J = 19-7 = 12

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Keywords : Age, variable, linear equation

4 0

4 years ago

What is a sigma??? pls need help!!

azamat

Answer:

Sigma is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase ∑ is used as an operator for summation. When used at the end of a letter-case word, the final form is used

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Find the distance between the points (4.5,-1.5), (4.5,7.25)<br> The distance is ____.

poizon [28]

Answer:

8.75

Step-by-step explanation:

5 0

3 years ago

Can someone help me?

Oxana [17]

Answer:

Step-by-step explanation:

To start calculating, we first need to make some proof.

Firstly, since AB = AC, we know that ΔABC is isosceles, which means that ∠ABC = ∠ACB.

Now, looking only to ΔBDE and ΔCDF, we can see that they are similar, because the two of its angles are congruent:

∠BED=∠CFD

∠DBE=∠DCF

To make it easier to visualize which are the corresponding vertexes, we can draw them like this:

And we need to remember that BC is 24, so:

BD+CD=24

Since the triangles are similar, their corresponding sides have constant ratio, which we can calculate from the corresponding sides DE and CF:

$r=\frac{CF}{DE} =\frac{7.5}{4.5} =\frac{5}{3}$

This ratio is the same for the other corresponding sides, so we can apply that for BD and CD:

$r=\frac{CD}{BD} =\frac{5}{3}\\
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BD=\frac{3}{5} Cd$

Thus, the measure of CF is approximately 13, alternative D.

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3 years ago

Five snails are having a race. The snail's speeds are given in the table. Which two snails are going the same rate of speed?

skad [1K]

Answer:

2 1/5 for alice

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Carl and Eva

Step-by-step explanation:

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3 years ago