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Anarel [89]
2 years ago
8

Help 50 pointsss pleasssse

Mathematics
2 answers:
Serggg [28]2 years ago
8 0

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Let's solve for e :

  • 9e - 7 = 7e - 11

  • 9e - 7e =  - 11 + 7

  • 2e =  - 4

  • e =  - 4 \div 2

  • e =  - 2

value of " e " = -2

Aloiza [94]2 years ago
8 0

\\ \sf\longmapsto 9e-7=7e-11

\\ \sf\longmapsto 9e-7e=-11+7

\\ \sf\longmapsto 2e=-4

\\ \sf\longmapsto e=\dfrac{-4}{2}

\\ \sf\longmapsto e=-2

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12. In PQR if mP is 14 less than five times x, mQ is five less than x, and mR is nine less
mash [69]

Answer:

Step-by-step explanation:

mP=5x-14

mQ=x-5

mR=2x-9

we know that all the angles in a triangle= 180

that means (5x-14)+(x-5)+(2x-9)=180

5x-14+x-5+2x-9=180  we add the variables and the numbers

8x=180+28

8x=108

x=26

mP=130-14=116

mQ=26-5=21

mR=43

6 0
2 years ago
Jada walks up to a tank of water that can hold up to 10 gallons.When it is active, a drain empties water from the tank at a cons
worty [1.4K]

Answer:

<em>Part A)</em><em>The amount of water in the tank is changing at </em><em>-2/3 gallons per minute. </em>

<em>Part B) </em><em>it will take </em><em>7.5 minutes</em><em> for the tank to drain completely.</em>

<em>Part C) </em><em>The water tank was completely full </em><em>4.5 minutes</em><em> before Jada arrived.</em>

Step-by-step explanation:

<em>Information fetching:</em>

  • Tank of water can hold up-to 10 gallons.
  • When it is active, a drain empties water from the tank at a constant rate.
  • 7 gallons of water present in the tank when Jade first saw
  • 5 gallons of water left after 3 minutes

<em>Part A) At what rate is the amount of water in the tank changing?</em>

As the gallons were decreased from 7 to 5 in three minutes. It means in three minutes, 2 gallons were decreased.

So, gallons per minute change would be <em>-2/3 gallons per minute. </em>Hence, <em>the amount of water in the tank is changing at </em><em>-2/3 gallons per minute. </em>

<u><em>Note</em></u><u><em>: </em></u><u>negative sign indicates the number of gallons of water are decreasing.</u>

<em>Part B) How many more minutes will it take for the tank to drain completely.</em>

Let 'm' be the number of minutes will it take for the tank to drain completely.

As,

(2/3 gallons per minute) (m minutes) = 5 gallons

So,

    m = 5 (3/2)

      = 15/2

      = 7.5 minutes

<em>So, it will take </em><em>7.5 minutes</em><em> for the tank to drain completely.</em>

<em>Part C) How many minutes before Jada arrived was the water tank completely full</em>

As tank of water can hold up to 10 gallons. So, the tank of water is full when there is 10 gallons of water. So, this is 3 gallons of water more than the total 7 number of gallons at the time when Jada arrived.

As Jada arrived when the tank had left 7 gallons.

Let 'm' be the number of minutes before Jada arrived when the water tank was completely full.

So,

    (2/3) (m) = 3

    m = 3(3/2) = 9/2

        = 4.5 minutes

<em>So, the water tank was completely full </em><em>4.5 minutes</em><em> before Jada arrived.</em>

<em />

<em>Keywords: time rate of change, time</em>

<em> Learn more about time rate of change from brainly.com/question/6279456</em>

<em> #LearnwithBrainly </em>

3 0
3 years ago
Find the slope of the line y = 5/9x + 7/2
kiruha [24]

Answer:

5/9 is your answer

Step-by-step explanation:

8 0
3 years ago
10. If both equations have the same slope and the same y-intercepts, which
Papessa [141]
The answer is C because it’s the same line
5 0
2 years ago
What is the answer ti 3\4 × g = 5/8
gladu [14]

For this case we have the following expression:

\frac {3} {4} g = \frac {5} {8}

We clear the value of the variable "g", for this:

We multiply by 4 on both sides of the equation:

4 * \frac {3} {4} g = \frac {5} {8} * 4\\3g = \frac {20} {8}

We divide by 3 on both sides of the equation:

\frac {3g} {3} = \frac {20} {8 * 3}\\g = \frac {20} {24}

We simplify:

g = \frac {10} {12} = \frac {5} {6}

Answer:

g = \frac {5} {6}

4 0
3 years ago
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