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3 years ago

5(x + 3)= 4(x -3) What is x?

Mathematics

2 answers:

lana66690 [7]3 years ago

6 0

Answer:

-27

Step-by-step explanation:

5(x+3) = 4(x-3)

5x + 15 = 4x - 12

5x - 4x = -12 - 15

X = -27

Katyanochek1 [597]3 years ago

3 0

Answer:

Step-by-step explanation:

We will have to open the bracket first followed by collecting the like terms

Open the bracket first

5(x+3)=4(x-3)

5x+15=4x-12

Collect like terms

5x-4x=-12-15

x=-27

So the final answer is-27

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In a class 32 students, 4students we're homesick with the flu on Thursday. what percentage of the students were absent on Thursd

Fynjy0 [20]

Answer:

12.5%

Step-by-step explanation:

4 * 100 / 32 = 12.5

6 0

3 years ago

-7.4r - 6.31 = 3.23 - 5.6r

nikdorinn [45]

Answer:

r=−5.3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−7.4r−6.31=3.23−5.6r

−7.4r+−6.31=3.23+−5.6r

−7.4r−6.31=−5.6r+3.23

Step 2: Add 5.6r to both sides.

−7.4r−6.31+5.6r=−5.6r+3.23+5.6r

−1.8r−6.31=3.23

Step 3: Add 6.31 to both sides.

−1.8r−6.31+6.31=3.23+6.31

−1.8r=9.54

Step 4: Divide both sides by -1.8.

−1.8r/−1.8=9.54/−1.8

r=−5.3

4 0

3 years ago

Which of the values is equivalent to 5^–3? A) 1/15 B) 1/125 C) − 15 D) − 125

bazaltina [42]

Answer:

C 1/125

Step-by-step explanation:

5 ^−3

Calculate 5 to the power of −3 and get

1/125

7 0

2 years ago

louis wants to carpet the rectangular floor of his basement. The basement has an area of 864 square feet. The width of the basem

ivolga24 [154]

$x-\ length\\\\
\frac{2}{3}x-\ width\\\\
Area=\ length*width\\\\
864=x*\frac{2}{3}x\\\\
864=\frac{2}{3}x^2\ \ \ | divide\ by\ \frac{2}{3}\\\\
864*\frac{3}{2}=x^2\\\\
432*3=x^2\\\\
1296=x^2\ \ \ | \sqrt{}\\\\
x=36ft\\\\
Length\ is \ equal\ to\ 36ft.$

8 0

4 years ago

Read 2 more answers

What is the length of the shadow cast by a 12-foot lamp post when the angle of elevation of the sun is 60º? (to the nearest tent

elena-s [515]

Answer:

6.9 foot.

Step-by-step explanation:

Given: Length of lamp post= 12-foot.

The angle of elevation of the sun is 60°.

∴ The length of Lamp post, which is opposite is 12-foot.

Now, finding the length of shadow cast by foot lamp.

Length of shadow is adjacent.

∴ We know the formula for $Tan\theta$ = $\frac{Opposite}{adjacent}$

Next, putting the value in the formula.

⇒ $Tan 60° = \frac{12}{adjacent}$

Cross multiplying both side and using the value of Tan 60°

∴ Adjacent= $\frac{12}{\sqrt{3} } = 6.92$ ≅ 6.9 (nearest tenth value)

6.9 is the length of shadow cast by a 12-foot lamp post.

3 0

3 years ago