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2 years ago

9

E) Andy is 2 times younger than his sister and his father is 25 years older than him. If the total of their ages is 53 years, wh

at is Andy’s age and his father’s age?

1 answer:

netineya [11]2 years ago

7 0

Yes, we need the sisters age to find it the answer, not trying to be rude we just need the sisters age.

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Twice a number is 12 more than five times the number

inna [77]

N x 2 = 12 + 5n
2n - 5n = 12
-3n = 12
3n = -12
n = -4

4 0

3 years ago

Which of the following functions gives the radius, r(v), of a conical artifact that is 20 inches tall as a function of its volum

nalin [4]

By calculus or elementary geometry, we know that the formula for the volume of a cone, given pi (the constant), its height h and its radius r is:
$V=pi*h*r^2/3$
Lets solve this relation for the radius:
$3V=pi*h*r^2
$
$\frac{3V}{pi*h} =r^2$
$\sqrt{\frac{3V}{pi*h}} = r$
Now we have found a general formula that gives us the radius of a cone, given its volume and height. We need only substitute height (20in) and pi=3.14 to get the numerical equation: r=0.2185* $\sqrt{V}$

5 0

3 years ago

Quick sell outlet sold a total of 40 televisions, each of which was either a model p television or a model q television. each mo

saw5 [17]

Answer:

The number of the television sets that is model p is 12

Step-by-step explanation:

Here we have total number of television sold = 40

The model p televisions sold for $30 less than the model q televisions

That is $P = $q - $30

Therefore

Let the quantity of the model p sold be X

Let the quantity of the model q sold be X

Therefore

x + y = 40

Total cost of the television = 40 * 141 = $5640

Therefore, 120*x + 90*y = 5640

Plugging in x = 40 - y in the above equation we get

4800 - 30y = 5640 or

y = -28 and

x = 68

If we put y = 40 - x we get

30x + 3600 = 5640

If we put

120*x + 150*y = 5640.........(3)

we get

x = 12 and y = 28

Therefore, since the model p sold for $30 less than the model q, from the solution of equation (3) the number of the television sets that is model p = 12

3 0

2 years ago

Read 2 more answers

Amy, Lee, Tom and Uma are candidates in the school election. The person

Reil [10]

Answer:

Tom/Lee

Step-by-step explanation:

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2 years ago

What is the slope of the line graphed below (3 5) (0 -1)

Fittoniya [83]

Answer:

m = -15

Hope this helps. : )

3 0

2 years ago