All categories

2 years ago

- 4X -5+ 2X equals -11 what is the value for

Mathematics

1 answer:

nikitadnepr [17]2 years ago

4 0

Answer:

x = 3

Step-by-step explanation:

-4x-5+2x = -11

(-4x+2x)-5 = -11

-2x-5 = -11

-2x-5+5 = -11+5

-2x/-2 = -6/-2

x = 3

You might be interested in

Solve -7(s+2)-12=37 What is s

Shkiper50 [21]

Answer:

s= -5.57 (rounded to the nearest hundredth)

Step-by-step explanation:

1. Multiply s and 2 by 7.

You'll get -7s-14. We'll come back to this later

2. Subtract 12 from 37.

You'll get 25

3. Add 14 to both sides so that you cancel out the -14.

The equation stands as -7s= 39

4. Divide both sides by -7 so that we leave s by itself.

s= -5.57142857

4 0

2 years ago

Read 2 more answers

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. The length of each

aleksley [76]

Answer:

15 inches

Step-by-step explanation:

Suppose length of original square is L inches.

Now, to form a new square the length increases by 2.5 inches

So, new length=L+2.5 inches

Given that, perimeter of new square =70 inches.

Formula:-

Perimeter=4*length of square

Therefore 70=4*(L+2.5)

70 =4 L+10

4 L=60

L=15 inches

7 0

2 years ago

Read 2 more answers

Do the graphs of sine and cosine represent functions? If so, are they one-to-one? How do you know?

kogti [31]

Answer:

yesir

Step-by-step explanation:

8 0

2 years ago

Order the steps to show how to solve the equation 2(4x-11)+9=19

Elina [12.6K]

Answer:x=4

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

20 POINTS!!! Use the quadratic formula above to solve for h(t) = -4.9t^2 + 8t + 1 where h is the height of the ball in meters an

Elina [12.6K]

Answer:

Two solutions: -0.12 and 1.75.

Step-by-step explanation:

The quadratic formula is:

$\begin{array}{*{20}c} {\frac{{ - b \pm \sqrt {b^2 - 4ac} }}{{2a}}} \end{array}$ . Assuming that the x² term is a, the x term is b, and the constant is c, we can plug the values into the equation.

$\begin{array}{*{20}c}{\frac{{ - 8 \pm \sqrt {8^2 - 4\cdot-4.9\cdot1} }}{{2\cdot-4.9}}} \end{array}$

$\begin{array}{*{20}c}{\frac{{ - 8 \pm \sqrt {64 + 19.6} }}{{-9.8}}} \end{array}$

$\begin{array}{*{20}c}{\frac{{ - 8 \pm \sqrt {83.6} }}{{-9.8}}} \end{array}$

$\begin{array}{*{20}c}{\frac{{ - 8 \pm \sqrt {9.14} }}{{-9.8}}} \end{array}$

$\frac{-8 + 9.14}{-9.8} = -0.12$

$\frac{-8-9.14}{-9.8} =1.75$

Hope this helped!

3 0

2 years ago