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siniylev [52]
3 years ago
11

40 hours is 79% of what?​

Mathematics
1 answer:
Vikentia [17]3 years ago
6 0
<h2>50.6</h2>

Step-by-step explanation:

This is what I got. I hope it's correct.

Let the unknown number be x

79 \% \: of \: x = 40

% = /100

\frac{79}{100}  \times x = 40 \\  \frac{79x}{100}  = 40

Cross Multiply

79x = 100 \times 40 \\ 79x = 4000

Divide both sides of the equation by 79

\frac{79x}{79}  =  \frac{4000}{79}

Simplify

x = 50.6329 \\  \\ x = 50.6

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2x^(2)+12x+8<br> using completing square
gayaneshka [121]

Answer:

{2x}^{2}  + 12x + 8 \\  =  {x}^{2}  + 6x + 4 \\  =  {x}^{2}  + 6x +  {( \frac{6}{2}) }^{2}  + 4 -  {( \frac{6}{2} )}^{2}  \\  = ( {x}^{2}  + 6x +  {3}^{2} ) + ( - 5) \\  =  {(x + 3)}^{2}   - 5

8 0
3 years ago
Graph the image of Kite BCDE after a translation 5 units down.​
NeTakaya

Answer:

See attachment for the translated kite

<em></em>

Step-by-step explanation:

Given

The attached image of BCDE

Required

Translate 5 units down

From the attachment;

B = (-7,0)

C = (0,5)

D =(-7,10)

E = (-10,5)

The rule to translate 5 units down is:

(x,y) \to (x,y-5)

So:

B' = (-7,-5)

C' = (0,0)

D' = (-7,5)

E' = (-10,0)

<em>See attachment for the translated kite</em>

3 0
3 years ago
Brandon needs 12 pounds of deli meat to make a sandwich tray. He brought 4 1/3 pounds of ham. How many mor pounds of deli meat d
tankabanditka [31]

Answer:

7 2/3 more pounds of deli meat

Step-by-step explanation:

Brandon needs 12 pounds of deli meat to make a sandwich tray.

He brought 4 1/3 pounds of ham.

The amount of deli meat that he still needs is calculated as:

12 pounds - 4 1/3 pounds.

= 7 2/3 pounds

8 0
3 years ago
We consider the differences between the reading and writing scores of a random sample of 200 students who took the High School a
Maslowich

Answer:

A) True : Confidence Interval is the interval range around sample statistic, which is certain by extent of confidence level, to consist the actual population parameter.

B) True : Confidence Interval is the interval range around sample statistic, which is certain by extent of confidence level, to consist the actual population parameter.

C) False : Null Hypothesis can be accepted, despite of being actually false. This is called Type 2 Error.

Step-by-step explanation:

Hope this helps:)

3 0
3 years ago
Slope intercept form for (0,1) and (5,3)
Nostrana [21]

Answer:

The slope is 2/5 and the y-intercept is (0,1).  So, its y=2/5x+1

8 0
3 years ago
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