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Andreyy89
3 years ago
10

The age of a father is equal to the square of his daughter’s age. If one year ago, the father’s age was 8 times the daughter’s a

ge. What would their current ages be?
A- 25 years and 5 years

B- 81 years and 9 years

C- 49 years and 7 years

D- 36 years and 6 years

E- None of these choices


Thank you for any help. I’m having a great deal of trouble with this problem. Any help would be much appreciated.
Mathematics
1 answer:
grin007 [14]3 years ago
6 0
I did process of elimination and for each option subtracted one from the current values to see if one was 8x the other.
A - 24 & 4 (6x)
B - 80 & 8 (10x)
C - 48 & 6 (8x)
D - 35 & 5 (7x)

I found the correct answer to be c
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There is a lack of a diagram to go along with this question...
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3 years ago
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Algebra 1 Please help! thank u sm
olga_2 [115]

Answer:

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2. Dylan's answer is correct. He subtracted the exponents correctly, then moved the decimal place over one place towards the left.

3. Ethan is wrong. He added the exponents, instead of subtracting. However, you cannot do this, because when you are dividing exponents, you must subtract.

Step-by-step explanation:

I have this acronym I learned called MADSPM, which has helped me a lot. I never learned it in Algebra, but I wish that they had taught it. Each letter corresponds with an exponent rule. If this makes sense, here is what it stands for:

When you multiply, you add.

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In this case, it was solely division. So, you just need to remember division = subtraction, when it comes to exponents.

Hopefully this helped. If you need me to explain it better, please let me know, and I will try. Thanks much & have a wonderful day!

7 0
3 years ago
My Notes A street light is mounted at the top of a 15-ft-tall pole. A man 6 ft tall walks away from the pole with a speed of 4 f
Sergio [31]

Answer:

6.667 ft/s

Step-by-step explanation:

Given

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This forms a similar triangle (see attachment below).

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dy/dt = 5/3 dx/dt

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while dy/dt represents rate of movement of his shadow tips

dy/dt = 5/3 * 4

dy/dt = 20/3 = 6.667 ft/s

4 0
3 years ago
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Eric was rock climbing. At one point, he stopped and climbed straight down 2\dfrac{1}{2}2
nikitadnepr [17]

The equation that matches the given situation is -2\frac{1}{2}+6\frac{3}{4}=? . So, after two moves, Eric's elevation changed 4\frac{1}{4} meters above.

We know that in mathematics, subtraction means removing something from a group or a number of things. What is left in the group gets smaller when we subtract. The minuend is the first element we use. The subtrahend is the part that is being removed. The difference is the portion that remains after subtraction.

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Answer:

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