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trasher [3.6K]
3 years ago
11

I need help for the second one

Mathematics
1 answer:
dolphi86 [110]3 years ago
6 0
Equation
(3x21)+(3x15)

Answer
$108
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Multi-Step Two friends compare the amount of change they
Setler79 [48]

Answer:

Ashley

Step-by-step explanation:

Ashley:

12n (n=5) = 60+2u (u=10)=80

4 quarters equal a dollar

$1.80

Beto:

10n (n=5)= 50+ 4u (u=10) = 90

3 quarters equal .75

$1.65

5 0
2 years ago
the expression 15 a + 12 C is the cost in dollars of a admission at an amusement park for a adults and see children find the tot
Blizzard [7]

Answer:

<em>$195</em>

Step-by-step explanation:

15a + 12c

5 adults and 10 children means a = 5 and c = 10

15a + 12c = 15(5) + 12(10) = 75 + 120 = 195

5 0
3 years ago
Which expression is equivalent to 3(m − 3) + 4?
Elanso [62]

Answer:

3m − 5

Step-by-step explanation:

4 0
3 years ago
Please answer ASAP. The question is down below
Nadusha1986 [10]

Answer:  1) D      2) B

<u>Step-by-step explanation:</u>

1) The denominator cannot equal zero, Factor the denominator to find the zeros.  n³ - 4n² + 3n = 0

           n(n - 3)(n - 1) = 0

       n=0  n-3=0   n-1=0

       n=0    n=3      n=1

2) In order to be a rational expression, it must be in the form \dfrac{a}{b} where both a and b are integers.

Since \sqrtb\sqrt b is irrational and not an integer, then the expressions containing an irrational term <em>after simplified</em> cannot result in an integer.

Therefore, options <em>(i)</em> and <em>(iv)</em> are not rational expressions.

Option <em>(iii)</em> contains b as an exponent.  Since there is no information about b, it could be a fraction, which means it could be an irrational number.

3 0
3 years ago
Ed’s rental charges a flat fee of $5 plus $2 per hour to rent a pair of skates.
zavuch27 [327]
Flat doesn't change
2 changes with x
y=2x+5
yint is 5

to graph
start at center and go 5 up, that is y intercept
go 1 right and 2 up, that is another point

y=2(2)+5
y=4+5
y=9
cost $9 to rent for 2 hours
5 0
3 years ago
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