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yan [13]
3 years ago
12

Please help! NEED IT IMMEDIATELY

Mathematics
1 answer:
aleksklad [387]3 years ago
4 0
Sorry, I’m in 7th grade lol
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PART 3 PLZ ANSWER 32 POINTS
balandron [24]

i think you can do this one :    )

6 0
2 years ago
When sales of a particular hybrid automobile reach 60,000 units, federal income tax credits begin to phase out. One year after r
SCORPION-xisa [38]

Answer:

$750

Step-by-step explanation:

so, in short, we need to calculate 25% of $3000.

that is the amount of tax credit a buyer would get then.

direct and fast answer :

25% means 1/4 of the overall amount.

$3000 / 4 = $750

now, a little bit longer to explain % calculations in general.

let's say, we are talking 27%. now we have a problem to find a fast fraction as factor.

it always starts with the identification of 100%.

what is the full starting amount we are dealing with ? that is the 100%.

in our case $3000.

now, as a base for the calculation we determine 1%, which is 1/100 of 100%, of course.

1% = $3000 / 100 = $30

to get said 27% we have to multiply this by 27

27% = 1% × 27 = $30 × 27 = $810

or in general

x% = 100% × x / 100

that also works for more complex questions. e.g. calculate 1.5%

1.5% = $3000 × 1.5 / 100 = $30 × 1.5 = $45

and that is all there is to % calculations. all the questions are just some variations, where your are missing one of the 3 "ingredients" : 100% amount, x% amount and x itself.

and you need to transform the general equation above to get the missing piece of of the given information.

3 0
2 years ago
Dana's pool table is 4 feet wide and 8 feet long. Dana wants to replace the felt on the pool
erastovalidia [21]
$160 I think. Hope I’m right if not sorry.
5 0
3 years ago
Suppose that you had consumer group wanted to test to see if weight of participants in a weight loss program changed (up or down
Basile [38]

Answer:

Step-by-step explanation:

Hello!

The study variable is: X: the weight of a participant in a weight loss program

And the parameter of interest is μ: population average weight of participants of a weight loss program

Suppose that the hypothesis of interest is:

H₀: μ≥μ₀

H₁: μ<μ₀

α:0.05

To be able to determine the p-value you need:

The hypothesized value for the population mean (μ₀)

The distribution under witch the CI was constructed (either Z or t)

The sample size.

Given the computed 95%CI alone, the p-value cannot be determined.

I hope this helps!

8 0
3 years ago
The second hand on Mr. Vidler's Alarm Clock is 6 cm long. Approximately how far does the tip travel in 5 minutes and 15 seconds?
Nitella [24]

Answer: 3.297 centimeters.

Step-by-step explanation:

First, remember that if we have a circle of radius R, and we have an arc of angle A, the length of this arc is:

L = (A/360°)*2*3.14*R

In this case, we can think on a circle of radius R = 6cm.

And the angle in this case will be an angle of 5 minutes and 15 seconds.

We know that a clock does a complete revolution in 60 minutes, then:

60 minutes = 360°

First, we need to write 5 minutes and 15 seconds in minutes only.

we know that 60 seconds = 1min

then:

1 = 1min/60seconds = (1/60) min/seconds

then:

15 seconds = 15 seconds*((1/60) min/seconds) = (15/60) min = 0.25 min

Then:

5 minutes and 15 seconds = 5 min + 0.25 min = 5.25 min

Now we can use the relationship:

60 minutes = 360°

then:

1 = 360°/60min

Then:

5.25min = (5.25min)*(360°/60min) = 31.5°

Then we have A = 31.5°

Then the length of this arc (that is the distance that the tip of the tip travels in 5 minutes and 15 seconds) is:

L = (31.5°/360°)*2*3.14*6cm = 3.297 cm

5 0
3 years ago
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