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marshall27 [118]
3 years ago
13

Jamal earns $40 washing 5 windows. At this rate, how many windows did Jamal wash to earn $80?​

Mathematics
2 answers:
maksim [4K]3 years ago
8 0

Answer:

Jamal washed 10 windows

Step-by-step explanation:

The rate that Jamal washes windows at is $8/1 window

8/1=80/10

I hope this helped

Alja [10]3 years ago
3 0
10 windows : divide 40/5=8
Then divide 80/8 =10
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Simplify c + 6 < -20
Stels [109]

Answer:

Step-by-step explanation:

c + 6 < -20

Subtract 6 from both side

c +6 -6 < -20-6

c < -26

So value of c should be less than -26. Value of c = { - ∞ ...... -28, - 27 }

Eg:

If c = -27

-27 + 6 = - 21 . -21 is less than -20

7 0
4 years ago
How many extraneous solutions does the equation below have?
FrozenT [24]

<u>Answer</u>

0


<u>Explanation</u>

(2m)/(2m+3)-(2m)/(2m-3)=1

Simplifying the left hand first

(2m)/(2m+3)-(2m)/(2m-3) = {2m(2m-3) - 2m(2m+3)}/(4m²-9)

                                        (4m²-6m-4m²-6m)/(4m²-9)

                                         = (-12m) / (4m²-9)

Now this equet to 1

(-12m) / (4m²-9) = 1

-12m =  4m²-9

4m²+ 12m -9 =0 ⇒⇒⇒ This is a quadratic equation that has 2 real solutions.

4m²+ 12m -9 =0

m² + 3m + (3/2)²= 9/4 + 9/4

(m + 3/2)² = 18/4

m = √18/2 - 3/2                or m = -√18/2 - 3/2

    = 0.621                                       = -3.621

So we can say that the equation has NO extraneous solutions.

Answer = 0

8 0
3 years ago
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Please find x pleaseeeee
LiRa [457]

Answer:

x = 74°

Step-by-step explanation:

The measure of the inscribed angle x is half the measure of its intercepted arc, that is

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5 0
3 years ago
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A right rectangular prism has these dimensions:
Veronika [31]
Volume of rectangular prism = 1 1/3 x 5/6 x 2/3 = 4/3 x 5/6 x 2/3 = 20/27

Volume of cube = 1/6 x 1/6 x 1/6 = 1/216

<span>Number of cubes that will pack the rectangular prism = 20/27 / 1/216 = 160

Therefore the answer is the third choice or letter C.

I hope my answer has come to your help. God bless and have a nice day ahead!
</span>
4 0
4 years ago
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fenix001 [56]

Answer:

she has 68 chefs

Step-by-step explanation:

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