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professor190 [17]

3 years ago

6

Most staircases in use today have 9−inch treads and 8 1 2 −inch risers. What is the slope of a staircase with these measurements

? Give your answer as a fraction or rounded to four decimal places, if necessary

1 answer:

son4ous [18]3 years ago

6 0

Rise over run
8 1/2÷9 equals .9444

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The machinist's goal was to increase his production by at least 10% each day. Assume he achieved his goal. If he was able to mac

koban [17]

Answer:

25+10%= 27.5 Hope this helps.

Step-by-step explanation:

3 0

3 years ago

Need help on this if anyone can

Lunna [17]

Answer:

pretty sure it's 15 but if you used my answer and it was wrong srr

7 0

2 years ago

Albert bought some fish at a grocery store at $2 per pound for salmon and $4 per pound for catfish. He spent a total of $12 on s

Gemiola [76]

Albert bought 2 pounds of catfish and 2 pounds of salmon

Let c represent the amount of catfish in pounds and s represent the amount of salmon in pounds.

He spent a total of $12 on salmon and catfish and bought a total of 4 pounds. Hence:

c + s = 4 (1)

4c + 2s = 12 (2)

Solving equations 1 and 2 simultaneously gives:

c = 2, s = 2

Albert bought 2 pounds of catfish and 2 pounds of salmon

Find out more on equation at: brainly.com/question/2972832

7 0

2 years ago

The Law and Order detectives enter a house at 11:30 am and found a man on the floor murdered. They take his body temperature fin

taurus [48]

Answer:

Time of murder = 10:39 am

Step-by-step explanation:

Let the equation of exponential function representing the final temperature of the body after time 't' is,

f(t) = $a(e)^{nt}$

Here, a = Initial temperature

n = Constant for the change in temperature

t = Duration

At 11:30 am temperature of the body was 91.8°F.

91.8 = $98.6(e)^{nt}$ --------(1)

Time to reach the body to the morgue = 12:30 pm

Duration to reach = 12:30 p.m. - 11:30 a.m.

= 1 hour

Therefore, equation will be,

84.4 = $91.8(e)^{n\times 1}$

eⁿ = $\frac{84.4}{91.8}$

ln(eⁿ) = ln(0.9194)

n = -0.08403

From equation (1),

91.8 = $98.6(e)^{-0.08403t}$

$(e)^{0.08403t}=\frac{98.6}{91.8}$

$ln[(e)^{0.08403t}]=ln[\frac{98.6}{91.8}]$

0.08403t = 0.07146

t = 0.85 hours

t ≈ 51 minutes

Therefore, murder was done 51 minutes before the detectives arrival.

Time of murder = 11:30 - 00:51

= 10:90 - 00:51

= 10:39 am

7 0

2 years ago

The quotient of twice a number t and 12

frez [133]

$\boxed{2t:12=\frac{2t}{12}}=\frac{t}{6}$

4 0

3 years ago

Read 2 more answers