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3 years ago

Two workers can make two chairs in two days. How many chairs can 8 workers working at the same rate make in 20 days?

Mathematics

2 answers:

Norma-Jean [14]3 years ago

5 0

Every worker can make one chair each day. So 8 workers will make 8 chairs every day. So that's 8x20=160.

MakcuM [25]3 years ago

3 0

The answer is 4 chairs in 20 days

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sergeinik [125]

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3 years ago

-3x + 5y = -6<br> 6x - 10y = 12

enyata [817]

Answer:

1. Let's solve for x.

−3x+5y=−6

Step 1: Add -5y to both sides.

−3x + 5y + −5y = −6 + −5y

−3x = −5y − 6

Step 2: Divide both sides by -3.

−3x

−3

−5y−6

−3

y+2

2. Let's solve for x.

6x−10y=12

Step 1: Add 10y to both sides.

6x−10y+10y=12+10y

6x=10y+12

Step 2: Divide both sides by 6.

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3 years ago

If a cup of coffee has temperature 97Â°C in a room where the ambient air temperature is 25Â°C, then, according to Newton's Law o

FinnZ [79.3K]

Answer:

The average temperature is $T_{a} = 81.95^oC$

Step-by-step explanation:

From the question we are told that

The temperature of the coffee after time t is $T(t) = 25 + 72 e^{[-\frac{t}{45} ]}$

Now the average temperature during the first 22 minutes i.e fro $0 \to 22$ minutes is mathematically evaluated as

$T_{a} = \frac{1}{22-0} \int\limits^{22}_{0} {25 +72 e^{[-\frac{t}{45} ]}} \, dx$

$T_{a} = \frac{1}{22} [25 t + 72 [\frac{e^{[-\frac{t}{45} ]}}{-\frac{1}{45} } ] ] \left| 22} \atop {0}} \right.$

$T_{a} = \frac{1}{22} [25 t - 3240e^{[-\frac{t}{45} ]} ] \left | 45} \atop {{0}} \right.$

$T_{a} = \frac{1}{22} [25 (22) - 3240e^{[-\frac{22}{45} ]} - (- 3240e^{0} )]$

$T_{a} = \frac{1}{22} [550 - 1987.12 + 3240]$

$T_{a} = 81.95^oC$

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2 years ago

You earn $35 for washing 7 cars. How much do you earn for washing 4 cars?

faltersainse [42]

If you wash 4 cars you would get $20

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3 years ago

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On a coordinate grid, point P is at (2, 1) and point R is at (−6, −5). Points Q and S are a reflection of both points across the

netineya [11]

I think the answer is

Q (2,-1)
S (-6,5)

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3 years ago

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