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3 years ago

PLEASE HELP DUE IN ! HOUR

Mathematics

2 answers:

alekssr [168]3 years ago

8 0

Answer:

c. Mary charges $12.00 per hour for labor to paint houses. What is x, the number of hours Mary worked if she charged $240.00 for labor?

Step-by-step explanation:

Burka [1]3 years ago

5 0

Answer:

B: Brenna cycled a total of 240 miles this month. She cycled 12 miles less this month than last month. What is x, the number of miles Brenna cycled last month?

Step-by-step explanation:

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How do I do this problem -6(x+1)-18=26+4

pogonyaev

Answer:

x=-9

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−6(x+1)−18=26+4

(−6)(x)+(−6)(1)+−18=26+4(Distribute)

−6x+−6+−18=26+4

(−6x)+(−6+−18)=(26+4)(Combine Like Terms)

−6x+−24=30

−6x−24=30

Step 2: Add 24 to both sides.

−6x−24+24=30+24

−6x=54

Step 3: Divide both sides by -6.

−6x

−6

x=−9

Answer:

x=−9

5 0

3 years ago

What are the odds against picking a red marble from a bag of 10 green marbles, 10 yellow marbles, and 5 red marbles?

N76 [4]

5 out of 25
pick the chance over
add all possibilities

3 0

3 years ago

Read 2 more answers

Can someone help me with this please?

AfilCa [17]

Answer:

Step-by-step explanation:

14 = Minimum

22 = Lower quartile

32 = Median

87 = Upper quartile

95 = Maximum

8 0

3 years ago

A random sample is selected from a normally distributed population. The following sample statistics are obtained: n = 20, = 30,

Flura [38]

Answer:

b) The margin of error is approximately 3.24

e) The critical value is 1.7921.

Step-by-step explanation:

Step(i):-

Given sample size 'n' =20

Given sample standard deviation 's' = 10

 Margin of error 

The margin of error is determined by

 $M.E = \frac{t_{\alpha } S.D }{\sqrt{n} }$ 

The level of significance ∝ =0.95

The degrees of freedom = n-1 = 20-1=19

t₀.₉₅ = 1.729

$M.E = \frac{1.729 X10 }{\sqrt{20} }$

Margin of error = 3.866

Step(ii):-

 Margin of error 

The margin of error is determined by

 $M.E = \frac{t_{\alpha } S.D }{\sqrt{n} }$ 

Given another sample size n =30

The level of significance ∝ =0.95

The degrees of freedom = n-1 = 30-1=29

t₀.₉₅ = 1.70

$M.E = \frac{1.7021 X10 }{\sqrt{30} } =3.24$

Margin of error = 3.24

5 0

3 years ago

Let the x and y represent the tens digit and ones digit of a two digit number respectively. The sum of the digits of a two-digit

dangina [55]

36
add up to 9
flipped 63-36=27

6 0

3 years ago