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Pani-rosa [81]
3 years ago
10

Tarea: Expresiones Algebraicas Instrucciones: Evalúa las siguientes expresiones algebraicas con la información dada. Recuerda in

cluir el proceso. (30 puntos) Evalúa las siguientes expresiones algebraicas si a = 3, b = -2 yc = 5. 1
2a + 3b

-3c + 4b






​
Mathematics
1 answer:
Ainat [17]3 years ago
7 0

Answer:

-23.3

Step-by-step explanation:

Given:

a = 3, b = -2, c = 5. 1

Equation;

2a + 3b   - 3c + 4b

Find:

Solution

Computation:

2a + 3b   - 3c + 4b

2(3) + 3(-2)   - 3(5.1) + 4(-2)

6 - 6 - 15.3 - 8

-23.3

​

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Ms.Waddell put a 12-inch tall bucket under a leak in her sink. The bucket fills at a constant rate of 1/2 inch in every 1/6 of a
Angelina_Jolie [31]

Answer:

4 hours

Step-by-step explanation:

To solve this question you will simply make a ratio type equation. You know that every 1/6 of an hour, or every 10 minutes, the bucket will fill 1/2 an inch. The bucket is 12 inches tall.

\frac{10 min}{1/2 inch} = \frac{x min}{12 inches}

Cross multiply

120=\frac{1}{2} x

x=240 min

Convert minutes to inches

\frac{240 min}{1}  * \frac{1 hr}{60 min} = 4 hr

Final answer: 4 hours

Hope this helps!

8 0
4 years ago
Find the greatest common monomial factor : 4a^5b^2 and ab
3241004551 [841]
4a^5b^2=2*2*a*a*a*a*a*b*b
ab=a*b
greatest factor is ab
8 0
3 years ago
Solve equation 6.5= -3+ n
artcher [175]

Answer:

Step-by-step explanation:

so first you bring -3 to the other side to make it plus

so 6.5+3=n

so n=9.5

4 0
3 years ago
Read 2 more answers
Please help!!!<br> I don’t understand
stiv31 [10]

Answer:

y = -2/5x - 6

Step-by-step explanation:

Slope intercept follows the y = mx + b, which m is the slope, and b is the y intercept.

1. Find the slope:

The formula for slope is the change in y/ over the change in x. Or you can say rise/run.

In other words you can take any of those 2 dots, first count them to the other dot, which is -2, then count horizontally, which is 5, so the slope is -2/5

Another way:

Another way is to take any two points, like (-10, -2), and (-5, -4).

Then we can do -4 -(-2)/-5 -(-10), which is -2/5.

So the equation we have so far is y = -2/5x + b

2.Find the y intercept

Based on the graph, the y intercept is -6, so we get

y = -2/5x - 6

5 0
3 years ago
If r&gt; 0 and r^t = 6.25r^t+2, then r =
Firdavs [7]
I'm going to use n instead of t

rⁿ=6.25rⁿ+2
minus rⁿ both sides
0=5.25rⁿ+2
minus 2 both sides
-2=5.25rⁿ
divide both sides by 5.25
-2/5.25=rⁿ
take the nth root of both sides
\sqrt[n]{\frac{-2}{5.25}}= \sqrt[n]{r^n}
\sqrt[n]{\frac{-2}{5.25}}= r
4 0
3 years ago
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