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notsponge [240]
3 years ago
5

A human factors expert recommends that there be at least 9 square feet of floor space in a college classroom for every student i

n the class. Find the minimum floor space that 66 students require
Mathematics
1 answer:
Blizzard [7]3 years ago
8 0
9ft²=1student
xft²=66students

    9ft²            xft²
_______=_________
1student   66students

Cross multiply
1x=594
divide both sides by 1
x=594ft²

Answer=594ft²
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*need to know in the next hour*
Genrish500 [490]

Answer:

20 blocks per pound

Step-by-step explanation:

We can see the line of best fit goes through the points (0, 0) and (5, 100).  WE will use these to find the slope:

m=\frac{y_2-y_1}{x_2-x_1}

Using our points,

m=\frac{100-0}{5-0}\\\\=\frac{100}{5}\\\\=20

This makes the slope 20 blocks per pound.

4 0
4 years ago
Read 2 more answers
What are the approximate solutions of 4x2 + 3 = −12x to the nearest hundredth?
Gwar [14]
First 
4x^{2} + 12x + 3 = 0
determine if this equation were factorable, it's not for this one
so I use quadratic formula, try to search the formula online

x1 =  \frac{-12 +  \sqrt{(12)^{2} - 4*4*3} } {2*4} =  \frac{-12 +  4\sqrt{6} }{8} =  \frac{4(-3 +  \sqrt{6}) }{8} =   \frac{-3 + \sqrt{6}}{2} = - 0.28
x2 = \frac{-12 - \sqrt{(12)^{2} - 4*4*3} } {2*4} = \frac{-12 - 4\sqrt{6} }{8} = \frac{4(-3 - \sqrt{6}) }{8} = \frac{-3 - \sqrt{6}}{2} = - 2.72

<span>x ≈ −2.72 and x ≈ −0.28 is the solution</span>

3 0
4 years ago
A plumbers bill is £463.20 plus VAT. The current rat of VAT is 20%. What is the actual cost of work done?
Mila [183]
£555.84

1% of the original value ×20 is £92.64. Add that to the original value (£463.20)
8 0
3 years ago
Are children who use sign language allowed to talk with their mouth full?
liubo4ka [24]

Answer:

WHy? but yes they theoretically can

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
1 point
postnew [5]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

(3 \times 25 )+ 60 = 75 + 60 =

135

Thus Lisa spent 135 $ .

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

3 0
3 years ago
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