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3 years ago

Solve: negative 1 over 2 x + 2 = −x + 7 (5 points)

Mathematics

1 answer:

anzhelika [568]3 years ago

6 0

Answer:

x = 10

Step-by-step explanation:

$-\dfrac{1}{2}x+2=-x+7\qquad\text{Given}\\\\\dfrac{1}{2}x=5\qquad\text{add x-2}\\\\x=10\qquad\text{multiply by 2}$

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What is 4(1-2b)+7b-10

shutvik [7]

Answer:

-6-b

Step-by-step explanation:

4(1-2b)+7b-10

Multiply what's in parantheses

4(1)=4

4(-2b)=-8b

4-8b+7b-10

Combine like terms

4-10 -8b+7b

-6-b

Hope this helps :)

6 0

3 years ago

What is x if 3x+2=5x-8?

anyanavicka [17]

3x + 2 = 5x - 8
Flip
5x - 8 = 3x + 2
Subtract both sides by 3x
2x - 8 = 2
Add both sides by 8
2x = 10
Divide both sides by 2
x = 5

That's your answer.

Have an awesome day! :)

From your friendly Helper-in-Training, collinjun0827

6 0

3 years ago

Read 2 more answers

Help and explain very easy hurry 10 points

stealth61 [152]

Answer:

$\$18.97$ per hour

Step-by-step explanation:

step 1

Find the total hours

(37 hours/week)*(52 week)=1,924 hours

step 2

Divide the annual salary by the total hours

$\frac{36,500}{1,924}= 18.97\frac{\$}{h}$

7 0

3 years ago

Write the trigonometric expression in terms of sine and cosine, and then simplify.

katrin2010 [14]

Hello,

tan t /(sec t -cos t)= sin t/(cos t *(1/cos t -cos t))
=sin t/(cos t*(1-cos ²t)/cos t))
=sin t/sin² t=1/sin t [or=cosec t.]

3 0

3 years ago

En una escuela hay 135 mujeres y la razón entre hombres y mujeres es de 7 a 9. ¿Cuántos estudiantes hay en la escuela? *

pochemuha

Answer:

There are 531.5625 students which is 531 students in the school

Step-by-step explanation:

We add the ratio numbers ( 7 + 9 = 16)

We then divide that number by 135 ( 135 / 16 = 8.4375)

After we multiply by each ratio number, ( 7 and 9).

And we end up with 531.5625, also 531 students.

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

Hay 531.5625 estudiantes, que son 531 estudiantes en la escuela.

Explicación paso a paso:

Sumamos los números de razón (7 + 9 = 16)

Luego dividimos ese número por 135 (135/16 = 8.4375)

Después, multiplicamos por cada número de razón (7 y 9).

Y terminamos con 531.5625, también 531 estudiantes.

5 0

3 years ago