3 years ago

PLEASE HELP. I AM STRUGGLING.

Mathematics

1 answer:

Fittoniya [83]3 years ago

4 0

(1.25x8)1.06=18.55

1.325x + 8.48=18.55

1.325x = 10.07

$7.60

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levacccp [35]

Answer:

Step-by-step explanation:

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2 years ago

Elliot's employer pays time-and-a-half for all hours worked over 40 hours per week. Elliot's regular hourly rate is $9 per hour.

musickatia [10]

E=9h+1.5(9)(h-40)

e=9h+13.5(h-40), since h=49

e=9(40)+13.5(9)

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2 years ago

2/3 multiplied by what equals 3/4

Serga [27]

9/8 is your answer i believe

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2 years ago

The zookeeper has 9 cups of frog food. His frogs eat one half cup of frog each day. How many days can he feed the frogs before t

lubasha [3.4K]

Answer:

18 days

Step-by-step explanation:

It depends on the number of frogs, but if there is one frog then it would be...

9÷.5= 18 (18 half cups in 9 cups)

Therefore, one frog can eat for 18 days because it is only eating .5 a day.

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2 years ago

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The first three steps in determining the solution set of the system of equations algebraically are shown in the table. y = −x2 +

lianna [129]

You have a system of equations $\left \{ {{y = -x^2+2x-9} \atop {y =-6x+6}} \right.$ .

1. Substitude right side of second equation into the left side of the first equation: $-6x+6=-x^2+2x-9$ .

2. Solve this equation:
$x^2-2x+9-6x+6=0, \\ x^2-8x+15=0, \\ D=(-8)^2-4\cdot 1\cdot 15=64-60=4, \\ \sqrt{D}=2, \\ x_{1,2}=\dfrac{8\pm 2}{2 } =3,5$ .

3. Find y:
for $x_1=3, y_1=-6\cdot 3+6=-18+6=-12$ ,
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4. The solutions of the system are: (3,-12) and (5,-24).
Answer: Correct choice is A.

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3 years ago

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