Ecuacion de 3.4x+2=22.4

1 answer:

6 0

Answer/respuesta:x=6

Step-by-step explanation paso-por-paso explication: Move the constant to the right-hand side and change its sign Subtract the numbers Divide both sides of the equation /Mover la constante al lado derecho y cambiar su signo Restar los números Dividir ambos lados de la ecuación por

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(b) Paul uses the function y = 8x + 40 to model the situation. What score does the model predict for 3 h of homework? WILL MARK

Bess [88]

Assuming that $x$ is the amount of hours spent doing homework:

Plug in $3$ for $x$

$y = 8(3)+40$ , $y=64$

That means that since a $y$ value is the test score (because that's what the y-axis is labeled), your predicted test score is a 64.

8 0

3 years ago

Solve by completing the square? Could you please work it out step-by-step?

DaniilM [7]

16 n^2 -10n + 129 = 8n^2 -8

We collect the terms:
8n^2 -10n + 137 = 0

The steps for completing the square:

1) Move the "non X" (or "non N") term to the right:

8n^2 -10n = -137

2) Divide the equation by the coefficient of N² which in this case is 8
n^2 -1.2n = -17.125 

3) Take the coefficient of "N"; divide it by 2; square it; add it to both sides of the equation.
-1.2 / 2 = -.6
-.6^2 = .36


n^2 -1.2n +.36 = -17.125 +.36

Take the square root of both sides:
(n-.6)*(n-.6) = sq root( -16.765 )
That's about as far as I can go.

4 0

3 years ago

Use the distributive property to write an equivalent expression. 4(4q+8r)

Solnce55 [7]

Answer:

16q + 32r

Step-by-step explanation:

4 0

3 years ago

What are the steps to covert the answer into a mixed fraction of this problem 45 x 3/8= 135/8

riadik2000 [5.3K]

1. Divide 135 by 8 which is equal to 16
2. Multiply 16 ×8 = 128
3. Subtract 135 - 128 =7

The seven represent the numerator so it would be 7/8.

The finally answer would be

$16 \ \frac{7}{8}$

7 0

3 years ago

If you are paid every 3 months, or 4 times a year, what is that called?

ollegr [7]

Thank you! This helped a lot!!! :)

5 0

2 years ago

Ecuacion de 3.4x+2=22.4​

Ecuacion de 3.4x+2=22.4