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scoray [572]
3 years ago
14

A theater holds 2,680 seats. The lower level has 100 less than 2 times as many seats as the upper level. The middle level has 80

more than 3 times as many seats as the upper level. How many seats are in the middle level?
450 seats
800 seats
1,250 seats
1,430 seats
Mathematics
1 answer:
yawa3891 [41]3 years ago
4 0

Answer:

its D 1430

Step-by-step explanation:

A theater holds 2,680 seats. The lower level has 100 less than 2 times as many seats as the upper level. The middle level has 80 more than 3 times as many seats as the upper level. How many seats are in the middle level?  A B C D

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nancy spent 7/8 hour working out at the gym she spent 5/7 of that time lifting weights what fraction of an hour did sje spentld
Juli2301 [7.4K]

\frac{9}{56}\\ Fraction of hour was spent by NAncy in lifting weights

Step-by-step explanation:

Time spent at the gym by Nancy = \frac{7}{8}\,hour

Time spent at lifting weights =  \frac{5}{7}\,hour

What fraction of hour she spent in lifting weights?

Solving:

Fraction of hour she spent in lifting weights= Time spend at the gym-Time spent at lifting weights

Fraction of hour she spent in lifting weights=\frac{7}{8}\,hour-\frac{5}{7}\,hour

=\frac{49}{56}-\frac{40}{56}\\=\frac{49-40}{56}\\=\frac{9}{56}\\

So, \frac{9}{56}\\ Fraction of hour was spent by Nancy in lifting weights

Keywords: Word Problems involving Fractions

Learn more about Word Problems involving Fractions at:

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7 0
3 years ago
How much is 109 divided by 5?
butalik [34]
There's more than one way to do this problem.

Try this:  Mult. both 109 and 5 by 2, obtaining 218 and 10.

What is 218 div. by 10?  Do this in your head.
6 0
4 years ago
Write an equation for each line.
Tems11 [23]

Answer:

Step-by-step explanation:

Equation of blue line:

blue line is parallel to y-axis

⇒ x = 5

Equation of green line:

Green line is parallel to x-axis.

y = 2

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At y-intercept x = 0. Point on red line is (0,5)

So, y-intercept = 5

y = mx + b Here,  m is slope any b is y-intercept.

y = mx + 5

Now, choose any other point in red line. ((1,7)

Substitute this value in the above equation and we can find m

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Black line and red line are parallel and so, they have same slope.

y = 2x + b

y-intercept (0,-6) ; b = -6

y = 2x - 6

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2 years ago
21) 0=-2y + 10 - 6x<br> 14 - 22y= 18x
zhenek [66]

Answer:

PlPlease be more spacific

Step-by-step explanation:

4 0
3 years ago
Help please!! Quick
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Step-by-step explanation:

Solve for a:

Step 1: Multiply both sides by b.

b=a

Step 2: Flip the equation.

a=b

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Solve for b:

Step 1: Multiply both sides by b.

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