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Naily [24]
3 years ago
9

When driving to​ Grandma's house, I drive on the highway for 5 hours at 50 ​mph, then through a large city for 2 hours at 20 ​mp

h, then on a county road for 5 hours at 35 mph. What is my mean speed for the entire​ trip? Round your answer to one decimal place.
Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
3 0

Answer:

0.035

Step-by-step explanation:

i got this because i added it all up and then rounded it up and i got my anwser im sorry if i got it wrong

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Quality control finds on average that 0.026% of the items from a certain factory are detective. One month, 4000 items are checke
telo118 [61]

Given that 4000 items are checked in one month, let the number of detective items be represented as y.

Quality control finds on average that 0.026% of the items in the factory are detective. This implies that

\text{Number of }\det ective\text{ items = }\frac{\text{0.026}}{100}\times\text{Total number of items checked}

When 4000 items are checked, we have the number of detective items to be evaluated as

\begin{gathered} \text{Number of }\det ective\text{ items = }\frac{\text{0.026}}{100}\times\text{Total number of items checked} \\ y=\frac{0.026}{100}\times4000 \\ \Rightarrow y=1.04 \end{gathered}

Hence, the number of detective items is 1.04.

7 0
1 year ago
A chestnut falls from a tree 45 feet above ground.Use the vertical motion model to find how long it takes to hit the ground.Roun
miv72 [106K]
Ok so please check if im wrong its 25
3 0
3 years ago
Help...
PolarNik [594]

Answer: perm will cost $48

Step-by-step explanation:

Let x be cost of haircut

So perm will cost her 2x

So

x + 2x + 5 = 77

3x = 72

x = 24

Perm will cost 2x24 = 48

4 0
3 years ago
Please help quick!!!!
Luda [366]
It's a y=mx+b equation, Carries' would be y=1/2 x - 125 (total profit is equal to the cupcake amount, each sold for 50 cents - the startup cost of 125). Juanita's would be y=2.25x-125. Comparing Carries' to Juanita's sales would mean that you would multiply x by 3 (no less than 3 times the ..). I may elaborate further on comparing in the comment section
8 0
2 years ago
Which of the following shows the correct order of the numbers below? (1/2) 2 , , 0.45
Elodia [21]
The correct order would be 0.45, (1/2), 2
Hope I helped :)
8 0
3 years ago
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