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3 years ago

Expression 28,090×420 rounded factors are what then then the estimated anwser is plz help

Mathematics

2 answers:

wariber [46]3 years ago

7 0

12000000 or 11800000

yulyashka [42]3 years ago

6 0

Can you please word that a little better? I'd love to help, I just can't understand what you asked. (:

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Among 1,200 Chinese tourists who are visiting Nepal,45 of them already visited India,40 have visited Pakistan and 15 have visite

SOVA2 [1]

30 visited nepal only 25 visited Pakistan only. 15 tourists at the intersection of the two circles and 1130 have not visited either

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3 years ago

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8. A music store sells used CDs for $9. They buy used CDs for $4. You have $50 to

Marat540 [252]

Answer: 9x+4=50

Step-by-step explanation:

In this case, we're looking at how many you can buy, not how many CD's you own.

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3 years ago

1. Which would be a more helpful for solving the system: adding the two equations or subtracting

ira [324]

Answer:

1) Subtracting one from the other

2) x = 0.375 and y = 0.125

Step-by-step explanation:

Equation 1 :

$\frac{2x+1}{2y}=7\\\\$

Equation 2:

$\frac{6x-1}{2y}=5$

To solve these equations by the Elimination method we multiply equation 1 with 6 and multiply equation 2 with 2 so now,

$\frac{2x+1}{2y} =7\\\\2x+1=14y\\\\Multiplying\ Equation\ 1\ with\ 6\\\\12x+6=84y$

Now for the second equation:

$\frac{6x-1}{2y}=5\\\\6x-1=10y\\\\Multiplying\ equation\ 2\ with\ 2 \\\\12x-2=20y$

Now subtracting equation 2 from equation 1

$12x+6=84y\\\\12x-2=20y\\\\Subtracting\ leads\ to\\12x-12x+6-(-2)=84y-20y\\0+8=64y\\8=64y\\8/64=y\\0.125=y$

now insert this value of y into any equation

lets insert it into equation 1

$\frac{2x+1}{2y} =7\\\\2x+1=14y\\2x+1=14(0.125)\\2x+1=1.75\\2x=1.75-1\\2x=0.75\\x=0.75/2\\x-0.375$

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3 years ago

A building has 40 apartments on 5 floors<br><br> what is the unit rate?

Anna71 [15]

Answer:

8 is the right answer

Step-by-step explanation:

because 40 devided by 5 is 8

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3 years ago

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Total deviationequals_______ deviationplus_______ deviation choose the correct answer below.

Tom [10]

<span>The correct answer is (a) total deviation equals unexplained deviation plus explained deviation.

These deviations are commonly encountered or studied in statistics, and sometimes in regression analysis.</span>

7 0

4 years ago

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