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natka813 [3]
3 years ago
9

SOMEONE ANSWER PLEASE!!!!!

Mathematics
2 answers:
Phoenix [80]3 years ago
6 0

Pilar started with 80 and adds 10 each week.

y= 10x + 80 (ten seashells • weeks + 80 she started with)

Marisol started with 0 and adds 20 each week.

y = 20x (no need to add + 0 because she started with nothing)

Inequality:

y = 10x + 80 < y = 20x

Weeks:

I would reccomend just plugging in numbers (for example if I put in 5 I would determine if it was too high or low then go to the next number.)

I plugged it into an online graph so I can’t show my work but the answer is 8 weeks.

Vadim26 [7]3 years ago
6 0

Answer:

8 weeks

Step-by-step explanation:

I had the same assigment and I got it ✅

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A rare first-edition book is currently priced at $200. After one year, the price of the book is anticipated to be 1.15 times the
Yakvenalex [24]

Answer:

Graph Y is the correct answer

Step-by-step explanation:

after 1 year, the price would be $200 * 1.15 = $230

After 2 years, the price would be $230 * 1.25 = $264.5

As you can see, the graph X and Z do not start at $200 in the first year so it will be eliminated

The graph W show that after 2 years the price is $300 but the second year must have the price of $264.5 so the only option left is graph Y.

Hope this can help!

4 0
3 years ago
Find the slope of the line passing through (3,5) and (-4,-10)
Rudiy27

Answer:

\frac{15}{7}

Step-by-step explanation:

Please see attached picture for full solution.

3 0
3 years ago
QUESTION 5
Anna [14]

Answer:

P\cup Q=\{1,\ 2,\ 3,\ 4,\ 5,\ 7,\ 8,\ 9, \ 10,\ 11\}

Step-by-step explanation:

The union of two sets P and Q, denoted as P\cup Q, is the set of all elements that are in the set P or in the set Q or in both sets P and Q.

Given:

P = {7, 8, 9, 10, 11}

Q = {1, 2, 3, 4, 5}

Then

P\cup Q=\{1,\ 2,\ 3,\ 4,\ 5,\ 7,\ 8,\ 9, \ 10,\ 11\}

When writing the union set, simply write all elements from both sets in on set.

4 0
4 years ago
Is there always an “invisible” 1 in front of every variable? I need this for a math assignment, thanks.
vivado [14]

Answer:

yes

Step-by-step explanation:

In front of every variable there is an invisible one which is being multiplied by the variable. This doesn't affect the variable because anything times one is still itself. The most common usage of the one is when combining like terms such as x+x. Since the equation is really 1x+1x, it would be 2x.

8 0
3 years ago
When the sum of the internal angles of a polygon is 10 right angles, then how
zzz [600]

Answer:

7 sides

Step-by-step explanation:

formula for sum of interior angles

(n-2)× 180= 10 right angles

(n-2)× 180 = 900

n-2= 900÷180

n= 5+2

n= 7

3 0
3 years ago
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