admin

2 months ago

Guest #5491479

2 months ago

**Answer:**

It is 7 devided by 11

0.6363636363

**Step-by-step explanation:**

Question

Find all possible values of the expression 1/x, if seven is less than x and x is greater than 7 but less than 13. HURRY I ONLY HAVE ONE HOUR PLEASE

Solution 1

**yo~ Sorry I just needed the points **

Question

a race car driver was driving at 300mph until he crashed into a wall. What was his speed after he crashed

Solution 1

**Answer:**

0

**Step-by-step explanation:**

Solution 2

**Answer:**

0

**Step-by-step explanation:**

Question

A pair of shoes cost $38 The sales tax rate is7% Find the total cost

Solution 1

$35.34 is the answer

Question

The area of a rectangular wall of a barn is 33 square feet. Its length is 8 feet longer than the width. Find the length and width of the wall of the barn, The width is feet.?

Solution 1

**Answer:**

**Width = 3ft **

**Length Â = 11ft**

**Step-by-step explanation:**

Given parameters:

Area of rectangular wall Â = 33ftÂ² Â

Unknown:

Length and width of the wall of the barn Â = ?

Solution:

Â So;

Â Â Â Â Â Area of a rectangle Â = length x width

Let the length Â = L

Â Â Â Â Â Â width Â = W

Â Â Â Â Â Â L Â = 8 + W

Â Â Â Â 33 Â = (8 + W)W

Â Â Â Â 33 Â = 8W + WÂ² Â

Â Â Â Â Â WÂ² + 8W Â - 33 Â = 0

Â Â Â Â Â WÂ² + 11W - 3W - 33 Â = 0

Â Â Â Â Â W(W + 11) Â - 3(W + 11) Â = 0

Â Â Â Â Â Â (W - 3)(W + 11) Â = 0

Â Â W - 3 Â = 0 or W + 11 Â = 0

So; Â W = 3

To find the length;

Â Â Â Â Â Â L Â = W + 8

Â Â Â Â Â Â L Â = 3 + 8 Â = 11

Question

Keith and Sarah Robinson purchased 40 stamps, a mixture of 49 cent and 34 cent stamps. Find the number of each type of stamp if they spent $17.35.

Solution 1

There are 2 equation. First let 49 cent stamps be f and 34 stamps be t.Â

One equation would be f+t=40 the other one would be .49f+.34t=17.35. You can do substitution if you want or elimination.Â

Put the two in line

49f+34t=1735

f+t=40----> elimination

-34(f+t=40)--> solve

49f+34t=1735

-34f-34t=-1360 --->solve

---------------------

Â Â Â Â Â Â 15f =375--> divide

f=25

Then put this on the first equation to find the other answer.

One equation would be f+t=40 the other one would be .49f+.34t=17.35. You can do substitution if you want or elimination.Â

Put the two in line

49f+34t=1735

f+t=40----> elimination

-34(f+t=40)--> solve

49f+34t=1735

-34f-34t=-1360 --->solve

---------------------

Â Â Â Â Â Â 15f =375--> divide

f=25

Then put this on the first equation to find the other answer.

Question

Hercules wrapped 1/3 of a present in 1/9 of an hour find the rate in presents per hour

Solution 1

**Answer:**

**3presents per hour**

**Step-by-step explanation:**

Given parameters:

Number of present wrapped Â = presents

Time taken Â = hours

Unknown:

Rate Â = ?

Solution:

To solve this problem ;

Â Â Rate Â = Â

Â Rate Â = Â

Â Rate Â = x 9 Â = **3presents per hour**

Question

The first three terms of an arithmetic sequence are as follows. 33, 25, 17
Find the next two terms of this sequence.

Solution 1

**Answer:**

The next terms of the sequence 33, 25, 17 is:

**Step-by-step explanation:**

An arithmetic sequence has a constant difference 'd' and is defined by Â

computing the differences of all the adjacent terms

The difference between all the adjacent terms is the same and equal to

The first element of the sequence is:

now substituting and in the nth term

**Determining the 4th term:**

We already got the nth term of the Arithmetic sequence

substitute n = 4

**Determining the 5th term:**

substitute n = 5 in the nth term

Thus, the next terms of the sequence 33, 25, 17 is:

Solution 2

**Answer:**

**Step-by-step explanation:**

17,13,9

Question

A race car driver won a 300 mile race with a speed of 183.2 mph find the drivers time

Solution 1

**Answer:**

The time taken by the driver is: t = 1.6 seconds

**Step-by-step explanation:**

**Given**

Distance covered by a race car = d = 300 mile

Speed of a car = s = 183.2 mph

**To determine**

The time of the driver = t = ?

Using the formula to determine the time of the driver

distance = speed x time

d = st

t = d/s

substitute d = 300 and s = 183.2

t = 300 / 183.2

t = 1.6 seconds

Therefore, the time taken by the driver is: t = 1.6 seconds

Question

Annabelle drove 155 miles in 5 hours. How many miles does she drive in 4 hours? How many miles does she drive in 6 hours?

Solution 1

She drives 124 miles in 4 hours and 186 miles in 6 hours.

Question

joe boght 15 tolets. 1 was pure gold 2 were pure silver and the rest were wooden. how many wooden toilets were there?

Solution 1

12.

It is easy all you have to do is 15-3 because 1+2=3

It is easy all you have to do is 15-3 because 1+2=3

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