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3 years ago

Suppose to travel 162 miles in 3 hours .use the formula d=st to find the average speed

Mathematics

2 answers:

Umnica [9.8K]3 years ago

6 0

Distance = Speed x time = 162 x 3 = 486 miles/hour

Answer: 486 miles/hour

Vladimir79 [104]3 years ago

4 0

Reduce:

162 miles

--------------- = 54 mph

3 hrs

If we start with distance = rate times time, we can solve for rate:

rate = distance / time. That's what I've just done (above).

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Solve the system by graphing:

AleksandrR [38]

Answer:

Step-by-step explanation:

its c

5 0

3 years ago

What is the quotient (x3 – 3x2 + 5x – 3) ÷ (x – 1)?

11111nata11111 [884]

Answer:

x^2 -2x +3
x^2 +2x +3

Step-by-step explanation:

The quotient in each case can be found by any of several means, including synthetic division (possibly the easiest), polynomial long division, or graphing.

1. The graph shows you the quotient is (x-1)^2 +2 = x^2 -2x +3.

2. The graph shows you the quotient is (x+1)^2 +2 = x^2 +2x +3.

3 0

3 years ago

In 1990, the population of Boston, Massachusetts was 574,283. In 2000, the population was 589,141. What is the percent of change

MrMuchimi

Answer:

Percent of change in population is $2.6$ %

Step-by-step explanation:

Given population of Boston is $574,283$ measured in year $1990$ .

And population of Boston in year $2000$ is $589,141$ .

We need to find percent of change in population.

So, percent change $=\frac{New\ population-Old\ population}{Old\ population}\times100$ %

Here old population is $574,283$ and new population is $589,141$

Plugging these value in formula we get,

Percent change $=\frac{589,141-574,283}{574,283}\times100\\\\=\frac{14858}{574,283}\times100=0.0258\times100\\\\=2.587$

Rounding to nearest tenth 2.6%

8 0

3 years ago

The average teenager spends 2.9 hours a day watching television. How much time do they spend each week watching television?

Bumek [7]

Answer:They spend 8 hours

Step-by-step explanation:2.9 times 3

8 0

3 years ago

Please help

german

Answer:

17 units

Step-by-step explanation:

Distance between points $(a,b)\,,\,(c,d)$ is given by $\sqrt{(c-a)^2+(d-b)^2}$

The trail starts at P(−2, 2) and goes to Q(5, 2).

Take $(a,b)=(-2,2)\,,\,(c,d)=(5,2)$

$PQ=\sqrt{(5+2)^2+(2-2)^2}=\sqrt{7^2}=7$ units

It goes from Q to R(5, −5)

Take $(a,b)=(5,2)\,,\,(c,d)=(5,-5)$

$QR=\sqrt{(5-5)^2+(-5-2)^2}=\sqrt{(-7)^2}=7$ units

It goes from R to S.

Take $(a,b)=(5,-5)\,,\,(c,d)=(8,-5)$

$RS=\sqrt{(8-5)^2+(-5+5)^2}=\sqrt{3^2}=3$ units

$PQ+QR+RS=7+7+3=17$ units

4 0

3 years ago