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2 years ago

9

20 POINTS! Will give brainliest to correct answer! Please help. I would also really appreciate an explanation for the answer so

that I can do it on my own next time.

2 answers:

marysya [2.9K]2 years ago

8 0

Answer:10/9 if I am wrong I am sorry

Step-by-step explanation:

PSYCHO15rus [73]2 years ago

5 0

Answer:

$\frac{100}{9}$

Step-by-step explanation:

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At work, Jack must stuff 1000 envelopes with advertisements. He can stuff 12 envelopes in one minute, and he has 112 envelopes a

Vsevolod [243]

Answer:

It will take Jack 74 minutes(1 hour and 14 minutes) to complete the task

Step-by-step explanation:

From the question, we know that he has 1000 envelopes to stuff.

Now, he has already stuffed 112 out of the 1000. Number of envelopes left to be stuffed will be 1000 -112 = 888 envelops

We were told that it takes him 1 minute to stuff 12 envelopes.

Let the time it will take him to stuff 888 envelopes be x minutes;

Let’s have a relationship here;

12 envelopes = 1 minute

888 envelopes = x minutes

12 * x = 888 * 1

12x = 888

x = 888/12

x = 74 minutes

4 0

3 years ago

Directions: Evaluate each rational expression using the indicated values of the variable.

xeze [42]

Answer:

$1) \: \: \frac{5x}{2y} \\ a) \: \: x = 8 \: \: and \: \: y = 10 \\ \frac{5x}{2y} \\ \frac{5(8)}{2(10)} \\ \frac{40}{20} \\ 2 \: ans \\ b) \: \: \frac{5x}{2y} \\ \frac{5( \frac{1}{2}) }{2( \frac{2}{3}) } \\ \frac{2.5}{1.3} \\ \frac{25}{13} \\ 1.92 \: \: ans \: \\ \\ 2) \: \: \frac{a {b}^{3} }{c} \\ \\ a) \: \: a = 4 \: .\: b = 3 \: . \: c = 2 \\ \\ \frac{a {b}^{3} }{c} \\ \frac{(4) {(3)}^{3} }{2} \\ \frac{4(27)}{2} \\ \frac{108}{2} \\ 54 \: \: ans \: \\ \\ b) \: \: a = - 2 \: . \: b = - 2 \: . \: c = 2 \\ \\ \frac{a {b}^{3} }{c} \\ \frac{( - 2) {( - 2)}^{3} }{2} \\ \frac{ - 2 { (- 2)}^{3} }{2} \\ \frac{ - 2( - 8)}{2} \\ \frac{16}{2} \\ 8 \: \: ans \:$

Step-by-step explanation:

question 3 is already answered by me in your question..or you can see attachment.

3 0

2 years ago

D) 12x^3 - 4x^2<br> Factorise fully

Vinvika [58]

Answer:

The answer for the equation is $4x^2 (3x - 1)$ .

Step-by-step explanation:

Solve:

$12^3 - 4x^2$

-Factor out the $4$ :

$12^3 - 4x^2$

$4(3x^3 - x^2)$

-Factor out the $x^2$ :

$4(3x^3 - x^2)$

$x^2 (3x - 1)$

-Then, you rewrite the complete factored expression:

$x^2 (3x - 1)$

$4x^2 (3x - 1)$

So, the answer is $4x^2(3x - 1)$ .

8 0

3 years ago

Four times a number plus three is the same as six plus the number

statuscvo [17]

Answer:

4x+3=6+x

x=1

Step-by-step explanation:

4x+3=6+x

3x+3=6

3x=3

x=1

6 0

2 years ago

Read 2 more answers

Please help with questions #1, #3 and #4 but skip #2; and show your work on how to solve them (don't just give the answer, I'd l

alexandr1967 [171]

Answer:

<u>Step-by-step explanation:</u>

Answer: y = $\frac{1}{2320}x$ + 0.06

<u>Step-by-step explanation:</u>

Consider the "steps: distance" table as an x-y table. This makes "steps" the x-values and "distance" the y-values. So, the coordinates are:

(8022, 3.52) and (7558, 3.32)

Need to find the slope (m) and the y-intercept (b).

<u>Slope (m)</u>

m = $\frac{y_{2} - y_{1}}{x_{2} - x_{1}}$

= $\frac{3.52-3.32}{8022-7558}$

= $\frac{0.20}{464}$

= $\frac{1}{2320}$

<u>Point-Slope formula:</u>

y - y₁ = m(x - x₁) <em>where m is slope and (x₁, y₁) is the point</em>

y - 3.52 = $\frac{1}{2320}$ (x - 8022)

y = $\frac{1}{2320}x$ - $\frac{1}{2320}(8022)$ + 3.52

y = $\frac{1}{2320}x$ - 3.46 + 3.52

y = $\frac{1}{2320}x$ + 0.06

******************************************************************************

Answer: y = 9 miles

<u>Step-by-step explanation:</u>

y = $\frac{1}{2320}(21000)$ + 0.06

= 9.05 + 0.06

= 9.11

********************************************************************************

Answer: 521,681

<u>Step-by-step explanation:</u>

225.00 = $\frac{1}{2320}x$ + 0.06

<u>-0.06 </u> <u> - 0.06 </u>

224.94 = $\frac{1}{2320}x$

(2320)224.94 = $(2320)\frac{1}{2320}x$

521,860.8 = x

********************************************************************************

Answer: 0.06 miles

<u>Step-by-step explanation:</u>

y = $\frac{1}{2320}(0)$ + 0.06

= 0 + 0.06

= 0.06

6 0

3 years ago