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Dmitry [639]
3 years ago
13

Anna's hair is 24 inches long. This is 12 inches longer than her

Mathematics
2 answers:
Fudgin [204]3 years ago
8 0
24x-12x=12x
her sisters hair is 12 inc. long
Musya8 [376]3 years ago
7 0

Answer:

s+12=24 & s=12

Step-by-step explanation:

Annas hair is 24 inches and is longer than her sister's hair by 12 inches.

We can come to the conclusion her sister's hair is 12 inches less than Anna.

Sisters hair = s

s=24-12

but, this needs to be an addition equation, so we add 12 to both sides to move the negative 12 over.

s+12=24

after solving, you get

s=12

her sisters hair is 12 inches.

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Two life insurance companies determine their premiums using different formulas:
Pie

Answer:

<em>The age at which both companies charge the same premium is 44 years</em>

Step-by-step explanation:

<u>Graph Solution to System of Equations</u>

One approach to solving systems of equations of two variables is the graph method.

Both equations are plotted in the same grid and we find the intersection point(s) of both graphs. Those are the feasible solutions.

The annual premium p as a function of the client's age a for two companies are given as:

Company A: p= 2a+24

Company B: p= 2.25a+13

The graphs of both functions are shown in the image below.

The red line indicates the formula for Company A and the blue line indicates the formula for Company B.

It can be seen that both lines intersect in the point with approximate coordinates of (44,112).

The age at which both companies charge the same premium is 44 years

8 0
3 years ago
The thickness of each type of coin is shown in the table. How much thicker is a stack of a dollars worth of nickels than a dolla
il63 [147K]

Answer:

16 nickels thicker

Step-by-step explanation:

You would need 20 nickels for 1 dollar and only 4 quarters for 1 dollar.  Do 20 minus 4 and your answer is 16 nickels. The stack of nickels is 16 coins thicker. Hope this helped!

5 0
3 years ago
Tyler spins each spinner below one time. What is the
Scorpion4ik [409]
11/12 for the first one and 1/3 on the second. I’m 100% sure but I’m sorry if it’s wrong. Have a great day!
4 0
3 years ago
20 POINTS!!!
choli [55]

Hello from MrBillDoesMath!

Answer:

x = 0, 7

Discussion:

f(g(x)) =

f ( x^2-7x) =

1/ ( x^2 - 7x)


The points NOT in the domain are those where the denominator,  x^2 - 7x = 0.

x^2 - 7x   = 0       =>       factor x from each term

x(x-7) = 0            =>        one or both terms must each 0

x = 0 or x =7


Thank you,

MrB


6 0
3 years ago
A mother is currently 7 times older than her son. In 3 years time, she will be 5 times older than her son. Let x and y be the pr
Softa [21]

Answer:

If the child is currently 6 years old and the mom is 42, in three years she'll be 45 and he'll be 9

Step-by-step explanation:

The son is y and the mom is x

x=7y

x+3=5(y+3)

7y+3=5y+15

7y=5y+12

2y=12

y=6

8 0
3 years ago
Read 2 more answers
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