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3 years ago

Help me please!!!i rlly need it!

Mathematics

2 answers:

OlgaM077 [116]3 years ago

5 0

Answer:

7.5

Step-by-step explanation:

How long does it take a car to travel 1 mile if its average speed is 40 mph? The answer is 1/40 of an hour or 1.5 minutes. multiply this by 5

juin [17]3 years ago

5 0

Answer:

0.1 hours to the nearest tenth (0.125 hours exact)

Step-by-step explanation:

For this problem, we simply need to do a conversion to find the length of time.

We are given the rate 40 miles per hour, and the distance of 5 miles. We simply need to know the amount of time.

5 miles * (1 hour per 40 miles) = 1 hour / 8

Note, the distance unit cancels out.

So, to travel 5 miles it will take 1/8 of an hour.

1/8 as a decimal is equal to 0.125. The answer rounded to the nearest tenth would be 0.1 hours, since the 2 rounds down.

Cheers.

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Bob gets the following homework grades:

tankabanditka [31]

Step-by-step explanation:

for bob;

his grades = 2, 2, 2, 2, 2, 10, 10, 10, 10, 10.

total = 60

mean = total/n

= 60/10 = 6

meadian is the middle value in the set of scores. the numbers are even so =

2+10 / 2

median = 12/2 = 6

standard deviation using excel = 4.216

for tom

7, 7, 7, 7, 7, 7, 7, 7, 7, 7

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1, 1, 8, 8, 8, 8, 8, 8, 10, 10

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4 0

3 years ago

Find the value of x in the figure below.

kupik [55]

Answer:

x=45

Step-by-step explanation:

You should follow the formula:

3x+3x+x+x=360

8x=360

x=45

8 0

3 years ago

charlie paid $660 for 6 shirts and 4 belts. one shirt costs three times as much as one belt. if charlie bought 5 such shirts and

fenix001 [56]

Let shirts is x and belt y
$6x + 4y = 660$
$x = 3y$
$18y + 4y = 660 \\ 22y = 660 \\ y = 30 \\ x = 90$
therfore
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4 0

3 years ago

The polynomial p ( x ) = x 3 − 7 x − 6 p(x)=x 3 −7x−6p, left parenthesis, x, right parenthesis, equals, x, cubed, minus, 7, x, m

avanturin [10]

Answer:

$p(x)=x^3-7x-6 = (x+1)(x+2)(x-3)$

Step-by-step explanation:

Given that polynomial:

$p(x)=x^3-7x-6$

Known factor: $(x+1)$

To find:

Equation of the polynomial as the product of linear factors.

Solution:

The degree of polynomial is 3, and when we divide it by a linear equation, the result will be a quadratic. That quadratic will have 2 solutions.

We can solve the quadratic in two linear factors and as a result we will have the answer.

First of all, we need to divide the polynomial $p(x)$ with the given factor $(x+1)$ to find the other factors.

$\dfrac{x^3-7x-6}{x+1} = x^2-x-6$

Solving the quadratic:

$x^2-x-6 = x^2-3x+2x-6\\\Rightarrow x(x-3)+2(x-3)\\\Rightarrow (x+2)(x-3)$

So, the answer is:

$p(x)=x^3-7x-6 = (x+1)(x+2)(x-3)$

4 0

3 years ago

Read 2 more answers

The first shift of GME Corporation produced 2 1/5 times as many lanterns as the second shift. GME produced 6,240 lanterns in Nov

madreJ [45]

Answer:

First shift produced 4,290 lanterns and second shift produced 1,950 lanterns.

Step-by-step explanation:

Look at the attachment

3 0

3 years ago