WILL MARK BRAINLIEST........Write an equivalent expression for 8(3 + 5x) + 7x + 4
If x= 3, is the solution to both expressions the
same?

Answer:

21%

Step-by-step explanation:

Another 10% increased means it becomes 110*110/100 = 121. The first 10% increase means the second 10% increase will be an actual 11% increase from the original, so it will be a total of 21%.

Answer:

Step-by-step explanation:

Because the first 10% increase is calculated as 10% of what you started with. The second 10% is 10% of what you started with plus 10% of the increase caused by the original 10% increase.

Let's do the maths…

Let's start with 100 to make things easy.

We know that 10% of 100 is 10.

We know that 20% of 100 is 20.

So if we increase 100 by 10% we get 110.

If we increase 100 by 20% we get 120.

Now lets do the 10% plus 10%.

From the first 10% increase we were left with 110.

Now if we take 10% of the 110 we have 11.

Add that to the 110 and we get 121.

This is why people are surprised how quick a lone can rise if we don't pay it off. We are paying interest on the basic sum plus interest on the interest, then interest on the interest on the interest.

HOPE THIS HELPS YOU

Follw me = 10 thanks

Mark as brainliest = 10 thanks

1 thanks to me = 2 thanks

Answer:

n²-n

Step-by-step explanation:

for example for the second term

2²=4

4-2=2 and so it works

Answer:

What I would tell Gareth is that his prediction is somewhat right because there is a 50/50 chance of landing the coin on each side because 410 is half of 820.

Step-by-step explanation:

Answer:

H

Step-by-step explanation:

ST is similar to EF and WR is similar to CD.

Hope it helps.

x is always +3 ahead (30-27=3)

and y is always trailing behind x by -3

Answer:

y = x - 3

Step-by-step explanation:

You are given an x and a y and need to find the difference.

Set up a formula using one of the given x and y pairs and solve.

y = x - u  plug in an x and y and solve for the unknown(u)

27 = 30 - u

-3 = -u

u = 3

Now plug the unknown into the original equation

y = x - 3

x = 3

y = -3

(3, -3)

Step-by-step explanation:

Choose one of the equations and isolate y. I will use the first one.

2x + y = 3

Y = 3 - 2x

Now sub the solution for y into the equation below.

3x - y = 3

3x - (3 - 2x) = 12

3x - 3 + 2x = 12

5x - 3 = 12

5x = 15

x = 3

To get y, sub the answer for x into one of the equations.

2(3) + y = 3

6 + y = 3

y = 3 - 6

y = -3

Answer:

(x,)y) =(3,-3)

Step-by-step explanation:

add the equations vertically to eliminate one variable

2x +y = 3

3x -y = 12

5x =15    divide both sides by 5

x  = 3       now substitute the given value of x into the equation  2x+y=3

2 x 3 + y = 3  multiply 2x3

6 +y =3           move constant to the right

y = 3-6

y = -3  

Answer:

proportional READ BELOW

Step-by-step explanation:

so its going by multiplying by 8's bc of the -10

so i think it is

id k tho  havent done negatives

please dont sue me if im wrong

Answer:

The answer is 22.5 lbs or 22 and a half lbs of mashed potatoes.

Step-by-step explanation:

The ratio of potatoes is 1.5.

10 lbs potatoes * 1.5 = 15 lbs mashed

So 15 lbs potatoes * 1.5 is: 22.5 lbs mashed potatoes.

"Bisect" means cuts in half perfectly. In other words, 66° = 3x. calculate and you get x=22°

y+10 = 56

y= 56-10

y= 46°

Answer:

It's D.

Step-by-step explanation:

Answer:

option b.

....................

Answer:

I know A for sure, maybe the second one is E but, I can't see E.

Step-by-step explanation:

A for sure

Answer:

C, 100 degrees

Step-by-step explanation:

180-80=100

Answer:

x has the values -4 and -3

Step-by-step explanation:

x² + 7x + 12 = 0

x² + 3x + 4x + 12 = 0

x(x + 3) + 4(x + 3) = 0

(x + 4)(x + 3) = 0

Answer:

 (x + 5) • (x + 3) • (x - 2) • (x - 4)

Step-by-step explanation:

Step-1 : Multiply the coefficient of the first term by the constant   1 • 15 = 15

Step-2 : Find two factors of  15  whose sum equals the coefficient of the middle term, which is   8 .

     -15    +    -1    =    -16

     -5    +    -3    =    -8

     -3    +    -5    =    -8

     -1    +    -15    =    -16

     1    +    15    =    16

     3    +    5    =    8    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  3  and  5

                    x2 + 3x + 5x + 15

Step-4 : Add up the first 2 terms, pulling out like factors :

                   x • (x+3)

             Add up the last 2 terms, pulling out common factors :

                   5 • (x+3)

Step-5 : Add up the four terms of step 4 :

                   (x+5)  •  (x+3)

            Which is the desired factorization

 (x + 5) • (x + 3) • (x - 2) • (x - 4)

Step-by-step explanation:

0.9(17) -2.7(3) =

15.3-8.1

=7.2

:D:D:D:D:D:D:D:D:D:D

Measurement of 5 quarts is equal to 20 cups.

Measurement is the method of comparing the properties of a quantity or object using a standard quantity.

Measurement is essential to determine the quantity of any object.

We have the measurement, 1 cup = 1/4 quarts

Let x be the number of quarts for 20 cups.

By using proportion,

1 / (1/4) = 20 / x

Cross multiplying,

x = 20 × (1/4)

x = 5

Hence the measurement of 20 cups is equal to 5 quarts.

Learn more about Measurement here :

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Thee measurement equals to 20 cups is 5 quarts.

Thus, option (a) is correct.

To determine which measurement is equal to 20 cups, compare the conversion factors between cups and each of the given measurements.

As, the conversion factors are:

1. 5 quarts

= 5 x  4 cups/quart

= 20 cups

2. 40 pints

= 40 x  2 cups/pint

= 80 cups

3. 1 gallon

= 1 x  16 cups/gallon

= 16 cups

4. 320 fluid ounces

= 320 x  0.125 cups/fluid ounce

= 40 cups

Learn more about Unit Conversion here:

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Answer:

Step-by-step explanation:

Answer:  its 2

Step-by-step explanation:

14 can only = 1 x 14

                  & 2 x 7

Answer:

C

Step-by-step explanation:

Answer:

1380 children and 820 adults went to the zoo that day

Step-by-step explanation:

System of Equations

Define the following variables

x = number of children that went to the zoo

y = number of adults that went to the zoo

On a certain day,  2000 people went to the zoo, thus:

x + y = 2000

Solving for x:

x = 2000 - y        [1]

The admission ticket is $1.50 for children and $4.00 for adults and that same day, $5050 was collected, then:

1.50x + 4y = 5050       [2]

Substituting x from [1]:

1.50(2000 - y) + 4y = 5050

Operating:

3000 - 1.50y + 4y = 5050

3000 + 2.5y = 5050

Subtracting 3000

2.5y = 5050 - 3000 = 2050

Dividing by 2.5

y = 820

From [1]

x = 2200 - 820 = 1380

1380 children and 820 adults went to the zoo that day

Answer:

wheres the triangle?

Step-by-step explanation:

Answer:

14.5

Step-by-step explanation:

The radius is half the diameter.

29/2=14.5

Answer:

Dilated or reduced

Step-by-step explanation:

When you dilate a figure or shrink and reduce it it's the same shape but different size

Answer:

48

Step-by-step explanation:

just divide it by 0.5....