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USPshnik [31]
3 years ago
9

4)

Mathematics
1 answer:
erastovalidia [21]3 years ago
7 0

Answer:

D.) 4x + y

Step-by-step explanation:

3x + x + y

Add  3 x  and  x .

4 x  +  y

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Roberto and Maria Santanos spend approximately $11.50 per week to wash and dry their family's clothes at a local coin laundry. A
Elena L [17]

Answer:

68 weeks

Step-by-step explanation:

1 week costs $11.50.

so, how many such weekly each cycles fit into the price of new machines ?

if they wait to long (to many weeks) they spend in total more money than buying a new machine.

but if they stay still below that max. number of weeks, they have at least the illusion that they are cheaper of with the weekly laundromat investment (but they forget, sooner or later they will need the new machines).

so the break even point is simply

782 / 11.5 = 68 weeks.

after 68 weeks it has cost them exactly the same amount of money, as if they had bought new machines right away at the beginning.

3 0
2 years ago
$1725 with 15% markup what’s the new price
fredd [130]

Answer:

$1983.75

Step-by-step explanation:

1725 x 0.15 = 258.75

now add to the original price

1725 + 258.75= 1983.75

5 0
3 years ago
What is the value of b in the equation below? 9^-8 x 9^-2 = a^b
vfiekz [6]

Answer:

b= -10

Step-by-step explanation:

9^ -8  * 9^ -2

We know that a^b * a^c = a^ (b+c)

9^ (-8+-2)

9^ -10

We want it in the form a^b

a=9

b= -10

7 0
3 years ago
Each school bus going to the field trip holds 36 students and 4 adults . There are 6 filled uses on the field trip. How many peo
lukranit [14]
The answer is 240 please mark me as brainliest
7 0
3 years ago
Which of the following statements is false? A. A rectangle is an equiangular quadrilateral. B. Opposite sides of a parallelogram
Darya [45]

Answer:

D.

Step-by-step explanation:

Choices A., B., and C. are always true.

Choice D. is true only for rectangles with congruent sides, which are squares.

Answer: D.

3 0
3 years ago
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