can someone help me please? find the value of each variable..

Answer:

Step-by-step explanation:

Given the volume of a prism expressed as;

V = lwh

l is the length of the prism

w is the width

h is the height of the prism

Since the prism is square based, l = w

The formula becomes

V = l²h

If its height is 3 yards longer than a side of its base, then h = l+3

V = l²(l+3)

V= l³+3l

Given V = 20yd³

The expression becomes

20 = l³+3l

l³+3l - 20 = 0

Hence the representative function for the volume of the solid is l³+3l - 20 = 0

Answer:

Jackie collected 61 coins and 20 stamps

Step-by-step explanation:

Solving (a): Variable representation

Let the coins be represented with c

Let the stamps be represented with s

Solving (b): Setup equation

Total is 81. This implies that:

[tex]s + c = 81[/tex]

Also:

[tex]c = 1 + 3s[/tex]

Solving (c): Solve the system

Substitute 1 + 3s for c in [tex]s + c = 81[/tex]

[tex]s + 1 + 3s = 81[/tex]

Collect Like Terms

[tex]s + 3s = 81-1[/tex]

[tex]4s= 80[/tex]

Divide both sides by 4

[tex]s = \frac{80}{4}[/tex]

[tex]s= 20[/tex]

Substitute 20 for s in [tex]c = 1 + 3s[/tex]

[tex]c = 1 + 3 * 20[/tex]

[tex]c = 1 + 60[/tex]

[tex]c = 61[/tex]

Solving (d): Solution statement

Jackie collected 61 coins and 20 stamps

Answer:

It's D ...

hope it helps

Answer:

240.9 (241)

Step-by-step explanation:

66% of 365 is 240.9, which can be simplified to 241 days of 365.

Answer:

I think the answer is J

Step-by-step explanation:

Answer:

[tex]y = 0.5[/tex]

Step-by-step explanation:

Given

[tex]4y > 1.2[/tex]

Required

Which value of y from [tex]\{ -0.5, -0.3, 0.3, 0.5 \}[/tex] makes the inequality true

First, we need to solve the inequality:

[tex]4y > 1.2[/tex]

Divide through by 4

[tex]\frac{4y}{4} > \frac{1.2}{4}[/tex]

[tex]y > \frac{1.2}{4}[/tex]

[tex]y > 0.3[/tex]

This means that the value of y that makes the inequality true is greater than 0.3.

From the list: [tex]\{ -0.5, -0.3, 0.3, 0.5 \}[/tex]

Only 0.5 is greater than 0.3.

Hence:

[tex]y = 0.5[/tex]

Answer:

-12

Step-by-step explanation:

integer rule = when a + and - comes it is indicated as - so ..

8-20 = -12

we put a minus sighnbecause 20 is the bigger number  

Answer:

-12

Step-by-step explanation:

Note the rules of the signs:

If there are two positive signs next to each other, the resulting sign will be positive. Example + (+  ).

If there is one negative sign and one positive sign directly next to each other, the resulting sign will be negative Example - (+  ) or + (-  ).

If there are two negative signs directly next to each other, the resulting sign will be positive. Example - (-  ).

In this case, there is one negative, and one positive sign. Subtract 8 with 20:

8 + (-20) = 8 - 20 = -12

-12 is your answer.

~

Answer:

The last one or

a+8=16

Step-by-step explanation:

Subsitute a for 8 and solve

Answer:

Step-by-step explanation:

the last one

8+8=16

a+8=16

Answer:

The constant term in the expression is 7

plz give brainlist

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

am smart

Answer:

24

6

42

55

Step-by-step explanation:

Answer:

24×0=0

6×1=6

21×2=42

11×5=55

Plzzzzz give me Brainliest!!!!!  

Answer: C. ∠5 and ∠6

Step-by-step explanation:

They are linear pairs meaning they form a straight line.

Angles that form a straight line are ALWAYS supplementary (they add up to 180°)

Hope this helped!

Hey there!

The solution to the system is [tex](\frac{1}{2}, 13)[/tex]

To solve the system, we can multiply the second equation by -1:

[tex]-2x - y = -12[/tex]

Then, we add the two equations together, and solve for x:

[tex]4x = -2[/tex]

[tex]x = \frac{-1}{2}[/tex]

Now, we plug the x value into one of the equations, and solve for y:

[tex]2(\frac{1}{2} ) + y = 12[/tex]

[tex]-2 + y = 12[/tex]

[tex]y = 13[/tex]

Now we know that the solution to the system is [tex](\frac{1}{2}, 13)[/tex]

Hope it helps and have an amazing day!

Answer:

(-1/2, 13)

Step-by-step explanation:

Multiply the 2nd equation by -1, obtaining the following system:

6x + y = 10

-2x  - y = -12

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

Combine like terms, obtaining:

6x + y = 10

-2x  - y = -12

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

4x     = -2

Dividing both sides by 4 yields x = -2/4, or x = -1/2

Substituting -1/2 for x in the second equation yields:

2(-1/2) + y = 12, or

-1 + y = 12.  Then y = 13, and the solution is

(-1/2, 13)

Answer:

:( we will all be here for you m :)

Step-by-step explanation:

Answer:

Ong she woulda had to see the hand.

Step-by-step explanation:

...

Step-by-step explanation:

[tex] {x}^{2} - 3x + 4 + 4 {x}^{2} - (x + 12)[/tex]

[tex]5 {x}^{2} - 4x - 8[/tex]

Answer:

p - 2

Step-by-step explanation:

Because the collar weighs two pounds, to find how much the dog would weigh without the collar, you simply have to subtract two pounds from the final count, represented by p.

Answer:

take the 2 pounds off the dog's regular weight

Answer:

zero property of addition

Step-by-step explanation:

Step-by-step explanation:

Its option D

As, for red $12 is charged

So 35 x $12 = 420

And white is $10

So, 20 x 10 = $200

= $420 + $200 = $620

Hope this helps

Answer:

there is 4, 8, 12, and 16. those are denominators

Answer:

Result:

Step-by-step explanation:

Given

The parallelogram DEFG

DE = 6x-12

FG = 2x+36

EF = 4y

DG = 6y-42

We know that the opposite sides of a parallelogram are equal.  

As DE and FG are opposite sides, so

DE = FG

substituting DE = 6x-12 and FG = 2x+36 in the equation

6x-12 = 2x+36

6x-2x = 36+12

simplifying

4x = 48

dividing both sides by 4

4x/4 = 48/4

x = 12

Therefore,

The value of x = 12

Also, EF and DG are opposite sides, so

EF = DG

substituting EF = 4y and DG = 6y-42 in the equation

4y = 6y-42

switching sides

6y-42 = 4y

6y-4y = 42

2y = 42

dividing both sides by 2

2y/2 = 42/2

y = 21

Therefore,

The value of y = 21

Result:

Answer:

The answer is 22

Step-by-step explanation:

Step-by-step explanation:

Price increase = $80 - $52 = $28.

Percentage increase = ($28/$52) * 100%

= 53.8% = 54%. (nearest percent)

Answer:

53%

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

Answer:

x = -1

Step-by-step explanation:

-4x + 7 = 11

       -7

-4x = 4

divide by -4

x = -1

Answer:

Step-by-step explanation:

42x 2 = 84

52/5= 10.4

-36/9=-4

10.4+84-4=90.4

Answer:

A form of stock which may have any combination of features not possessed by common stock including properties of both an equity and a debt instrument, and is generally considered a hybrid instrument.

Step-by-step explanation:

Answer:

The answer is C, -2/3

Step-by-step explanation: