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mylen [45]
3 years ago
10

Janie receives an allowance of $ 3 $3dollar sign, 3 per week. In addition, she can earn $ 2 $2dollar sign, 2 for each chore she

does. This week, she wants to earn enough money to buy a CD for $ 1 3 $13dollar sign, 13. Janie can do fractions of chores. Write an inequality to determine the number of chores, c cc, Janie must do this week to earn enough money to buy a CD.
Mathematics
1 answer:
Gnesinka [82]3 years ago
6 0

Hello  Dafnemlp47vj7

The inequality for one week would be <u><em>13  = 2c + 3 </em></u>

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Please help I'll give 40 points
iris [78.8K]

1.

Use this rule: √ab = √a√b

√12√x^2

Simplify √12 to 2√3

2√3√x^2

Simplify √x^2 to x

2√3x^2

3.

Multiply the numerator and denominator by the conjugate.

2√x/x

8 0
3 years ago
a jogger ran 4 miles, decreased her speed by 1 mile per hour, and then ran another 5 miles. If her total jogging time was 2 1/20
LekaFEV [45]
Let the speed of the joker initially be x mi/hr
after reduction, the new speed will be: (x-1) mi/hr
but
time=(distance)/(speed)
hence :
Total time taken will be:
4/x+5/(x+1)=41/20
solving for x we get:
x=21.585 mi/hr
thus the initial speed was 21.585 mi/hr after reduction the new speed was 20.585 mi/hr
5 0
3 years ago
Help me please. Will name brainliest.
mr Goodwill [35]

Answer:

A

Step-by-step explanation:

If you simplify you get -45=75 and that’s not true.

7 0
3 years ago
Read 2 more answers
What is the precent of 2 is 8?
Vlad [161]
2 * x/100 = 8

x/100 = 4

x = 400

400%
3 0
3 years ago
The area of rectangular field is (49m2-42m+9).Find the dimensions of the field
Drupady [299]

Answer:

The dimensions are (7m-3) by (7m-3)

Step-by-step explanation:

We have the area of the rectangular field to be:

49 {m}^{2}  - 42m + 9

We need to factorize this expression.

Let us rewrite to obtain:

{(7m)}^{2}  - 2(7 \times 3)m +  {3}^{2}

We can easily see that the expression is actually a perfect square trinomial.

This gives us:

(7m - 3)^{2}

Or

(7m - 3)(7m - 3)

6 0
3 years ago
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