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3 years ago

3x-2=10how do you find the answer for that question

1 answer:

5 0

3x - 2 = 10

First, add 2 to both sides. / Your problem should look like: 3x = 10 + 2.
Second, simplify 10 + 2 to get 12. / Your problem should look like: 3x = 12.
Third, divide both sides by 3. / Your problem should look like: x = $\frac{12}{3}$ .
Fourth, simplify $\frac{12}{3}$ to 4. / Your problem should look like: x = 4.

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6. Expand the expression 4(x + 5).<br> PLEASE HELP DUE TOMORROW

GrogVix [38]

Answer:

4x+20

Step-by-step explanation:

Using the distributive property you multiply the terms outside by the terms inside. So the expression will be like this

4(x)+4(5)

When simplified the answer is

4x+20

5 0

3 years ago

Read 2 more answers

Please help with the tennis court one.

solniwko [45]

We have two sides of length 'w'. They are the vertical sides.

We also have two sides of length '2w+6' which are the horizontal sides.

So we have these four sides
side1 = w
side2 = 2w+6
side3 = w
side4 = 2w+6

Let's add up those four sides to get
Perimeter = (side1)+(side2)+(side3)+(side4)
Perimeter = (w)+(2w+6)+(w)+(2w+6)
Perimeter = w+2w+6+w+2w+6
Perimeter = 6w+12

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

Since the perimeter is given to be 228, and we found the perimeter expression to be 6w+12, this must mean that the two are equal

So, 6w+12 = 228

Let's solve for w

6w+12 = 228
6w+12-12 = 228-12
6w = 216
6w/6 = 216/6
w = 36

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

Now that we know that w = 36, we can find the dimensions of this rectangle

The vertical sides are simply w, so the vertical sides are 36 feet each. I simply replaced w with 36.

The horizontal sides are a bit more complicated. The expression we have is 2w+6 or 2*w+6. Let's replace w with 36 and use PEMDAS to evaluate

2*w+6 = 2*36+6 = 78

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Answers are...
Length = 78 feet
Width = 36 feet
(the length is the horizontal component, the width is the vertical)

5 0

4 years ago

A rectangular-based pyramid has a height of 5” and the base measurements are 4”and 5”. Find the volume of the pyramid.

Svetach [21]

Answer:

The volume of the pyramid is 33.33 cubic inches

Step-by-step explanation:

we know that

The volume of the rectangular bases pyramid is given by the formula

$V=\frac{1}{3}Bh$

where

B is the area of the rectangular base of pyramid

h is the height of pyramid

we have

$B=(4)(5)=20\ in^2\\h=5\ in$

substitute

$V=\frac{1}{3}20(5)=33.33\ in^3$

6 0

4 years ago

I need help on this asap please. <br> im being timed.<br> and i put in a photo of the problem.

Elden [556K]

$F=ma\\\\a.\\ma=F\qquad|\text{divide both sides by}\ a\neq0\\\\m=\dfrac{F}{a}\\\\b.\\F=-30,\ a=6.\ \text{Substitute}\\\\m=\dfrac{-30}{6}=-5\\\\c.\\ma=F\qquad|\text{divide both sides by}\ m\neq0\\\\a=\dfrac{F}{m}\\\\F=30,\ m=10.\text{Substitute}\\\\a=\dfrac{30}{10}=3$

6 0

3 years ago

Ignore the answers and please help rn

grigory [225]

Answer:

225 sq inches.

Step-by-step explanation:

If two more layers are added on it would be 225 because 5*7*7=225

5 0

3 years ago

Read 2 more answers