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stiv31 [10]
2 years ago
15

Elise is entering a team into a 5-kilometer race. The cost for entry is $15 for a team and an additional $2 per member. The tota

l cost can be modeled by the equation -2x + y = 15, where x is the number of members on the team and y is the total cost. What is the total cost if Elise has 5 members on her team?
Mathematics
1 answer:
tangare [24]2 years ago
5 0
-2(5)+y=15
-20+y=15
y=35

$35
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Courtney is twice as old as Andre and three years older than Natalie. Courtney is half Shari's age. The difference between Shari
lesantik [10]

The question does not seem complete, but I'll represent the statement mathematically and look for their ages each. This is because the worst they can ask for is their ages.

Let C stand for Courtney's age, A for Andrei's age, N for Natalie's age and S for Shari's age. From the question we can deduce the following:

C = 2A

C = N + 3

C = S/2

S - N = C + A

S = 2C, N = C - 3 and A = C/2, therefore we have

2C - (C - 3) = C + C/2

C + 3 = C + C/2

C/2 = 3 and C = 6

A = C/2

A= 6/2

A = 3

N = C - 3

N = 6 - 3

N = 3

S = 2C

S = 2 x 6

S = 12.

C = 6, A = 3, N = 3 and S = 12

8 0
2 years ago
During a certain day, a worker made 81 parts. He usually does 45 parts per day. What was the percent by which he increased the n
SIZIF [17.4K]
45/81 = .55
Turn this into a percent: .55 x 100
55 percent
Hope this helps!
6 0
2 years ago
Read 2 more answers
Translate the sentence into an equation.
Ainat [17]

I'm not sure if interpreted your wording correctly but this is what I got...

w(4)+6=8

4 0
3 years ago
What is the multiplicity of each of the roots of the graph of
pantera1 [17]

Answer:

The correct option is;

C. -3, multiplicity 2; -1, multiplicity 1; 1, multiplicity 1

Please find attached the required function graph

Step-by-step explanation:

To solve the equation f(x) = 2·x⁴ + 12·x³ + 16·x² -12·x - 18, by graphing the function, we have;

x {}       F(x)

-4{}       30

-3{}       0

-2{}       6

-1{}        0

0 {}      -18

1{}         0

2{}       150

The shape of a graph with multiplicity of 2

Given that the graph bounces of the horizontal axis at the y-intercept at point x = -3, the factor (x - 3) must be a quadratic of the form (x - 3)², thereby having a multiplicity of 2 in the solution which are;

x = 1, -1, and, giving

(x - 1)·(x + 1)·(x - 3)² = 0

Therefore, the correct option is -3, multiplicity 2; -1, multiplicity 1; 1 multiplicity 1.

3 0
3 years ago
Read 2 more answers
Which choice is equivalent to the product below when x≥x​
Mazyrski [523]

Answer:

B.

Step-by-step explanation:

If you dont understand what I wrote, just ask!

4 0
3 years ago
Read 2 more answers
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