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Alexeev081 [22]
3 years ago
9

Rebecca is three years younger than twice Anthony's age. Write an expression that represents the relationship of Rebecca's age i

n terms of Anthony's age.
Mathematics
1 answer:
Andrei [34K]3 years ago
4 0

Answer:

X=2y-3

Step-by-step explanation:

Let Rebecca's age be x

Let Anthony's age be y

Twice Anthony =2y

Rebecca's age (x) to be 3 years younger than twice Anthony's =2y-3

So, it's x=2y-3

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The sequence a, = 2, 4, 8, 16, 32, ... is the same as the sequence ay = 2,
blondinia [14]

Answer:

TRUE

Step-by-step explanation:

TRUE

a_1 = 2

a_n = 2*(an_1)

if we start with 2, we would get

a_2 = 2*(a_1) = 2*(2) = 4

a_3 = 2*(a_2) = 2*(4) = 8

a_4 = 2*(a_3) = 2*(8) = 16

a_5 = 2*(a_4) = 2*(16) = 32

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and so on

4 0
3 years ago
Are the following ratios equivalent? Why or why not? 4:5 and 16:20
MrRissso [65]

Answer:

Equivalent

Step-by-step explanation:

4:5      multiply both sides by 4  to get    16:20    

4 0
2 years ago
How many real solutions does this system of equations have? xy = 9<br> y = 3x - 1
tekilochka [14]

Answer:

two real, unequal roots

Step-by-step explanation:

y is definied as y = 3x - 1.  Substitute 3x - 1 for y in xy = 9, obtaining:

x(3x - 1) = 9.  Then:

3x^2 - x - 9 = 0.  In this quadratic, the coefficients are a = 3, b = -1 and c = -9.

Calculating the discriminant b^2 - 4ac, we get (-1)^2 - 4(3)(-9), or 1 + 108, or 109.  Because the discriminant is positive, we have two real, unequal roots.

6 0
3 years ago
180537.5 what is it simplified??
olga_2 [115]
180537.5 simplified is 180538
6 0
3 years ago
Please help with explanation if you can
sertanlavr [38]

Answer:

Step-by-step explanation:

The answer is b

8 0
3 years ago
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