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frutty [35]
3 years ago
12

Correct answer gets brainliest!find two expressions whose difference is 3x + 4​

Mathematics
1 answer:
il63 [147K]3 years ago
8 0

Answer:

(7x+4) and (4x)

Step-by-step explanation:

The two expressions are (7x+4) and (4x)

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Sergio makes belts in his garage.He makes a certain number of belts for every hour he works.what is the missing value in the tab
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12 it's adds ×÷2 ( 8÷2=4) and then add the two numbers (8&4)
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Winston is making steaks for his 4 friends. If each steak is 7.7 oz, how much steak is Winston making? Choices are:
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Answer:D

Step-by-step explanation:

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3 years ago
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the state sales tax in pennsylvania is 0.06 (or 6%). if your total bill at the music store included $3.03 in sales tax, how much
Sedbober [7]
The answer is: 50.5

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3.03 x 100 = 303
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3 0
3 years ago
The volume of a rectangular pyramid is 900 cubic centimeters.It has a length of 10 centimeters and a width of 9 centimeters. Wha
MariettaO [177]
The height of a rectangular pyramid is 30 cm.

volume of rectangular pyramid = (length x width x height) / 3

Given: 
Volume = 900 cm³
Length = 10 cm
Width = 9 cm
Height = ?

V = lwh/3
900 cm³ = (10cm * 9cm * h)/3
900 cm³ * 3 = (90cm² * h)/3 * 3
2700 cm³ = 90cm² * h
2700 cm³/90cm² = 90cm² * h/90 cm²
30 cm = h

to check:
900 cm³ = (10 cm * 9 cm * 30 cm)/3
900 cm³ = 2700 cm³/3
900 cm³ = 900 cm³
3 0
3 years ago
Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 99 people
sertanlavr [38]

Answer:

The probability of getting someone in the 18-21 age bracket or someone who agreed to respond = 0.365

Step-by-step explanation:

The counts are as follows  

Age Group  No of people contacted No of refusals      Total  

18-21               88                                  8                       96

22-29              240                                  42                       282

Total              328                                  50                       378

 

The probability of getting some one in the age bracket of 18-21 or some one who refused to respond is

= \frac{96}{378} + \frac{50}{378} - \frac{8}{378} \\= \frac{96+50-8}{378} \\= \frac{138}{378} \\= 0.365

8 0
3 years ago
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