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4 years ago

9+y=6 help me please

Mathematics

2 answers:

Flura [38]4 years ago

6 0

Your answer is y=-3.

Here is my work:

9+y=6

Subtract nine from both sides:
=9+y-9=6-9

Simplify:
=y=-3

Phoenix [80]4 years ago

5 0

Y=-3
9+y=6
-9 -9
y=-3
subtract 9 from 6 that's what y equals

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Two buildings on opposites sides of a highway are 3x^3- x^2 + 7x +100 feet apart. One building is 2x^2 + 7x feet from the highwa

iVinArrow [24]

Given:

Distance between two buildings = $3x^3- x^2 + 7x +100$ feet apart.

Distance between highway and one building = $2x^2 + 7x$ feet.

Distance between highway and second building = $x^3 + 2x^2 - 18$ feet.

To find:

The standard form of the polynomial representing the width of the highway between the two building.

Solution:

We know that,

Width of the highway = Distance between two buildings - Distance of both buildings from highway.

Using the above formula, we get the polynomial for width (W) of the highway.

$W=3x^3- x^2 + 7x +100-(2x^2 + 7x)-(x^3 + 2x^2 - 18)$

$W=3x^3- x^2 + 7x +100-2x^2-7x-x^3 -2x^2+18$

Combining like terms, we get

$W=(3x^3-x^3)+(- x^2 -2x^2-2x^2)+ (7x -7x)+(100 +18)$

$W=2x^3-5x^2+0+118$

$W=2x^3-5x^2+118$

Therefore, the width point highway is $2x^3-5x^2+118$ .

8 0

3 years ago

Find the common difference of the sequence shown 1/6,1/3,1/2,2/3,......

tekilochka [14]

Answer:

Common Difference(d) is

$d=\frac{1}{6}$

Step-by-step explanation:

Given sequence is :

$\frac{1}{6}, \frac{1}{3} ,\frac{1}{2} ,\frac{2}{3} .........$

If a sequence has a constant common difference throughout the sequence, then the sequence is called Arithmetic Progression.

Considering a sequence:

$a_1,a_2,a_3,a_4..........\\$

$a_2-a_1=a_3-a_2=a_4-a_3=a_n-a_n_-_1=d$

where 'd' is the common difference of the A.P.

Similarly, finding the common difference of the given sequence.

$\frac{1}{3} -\frac{1}{6}= \frac{1}{2}- \frac{1}{3}=\frac{2}{3} - \frac{1}{2}=d\\$

$d=\frac{1}{3}-\frac{1}{6}=\frac{(2)(1)-(1)(1)}{6}=\frac{1}{6}$

$d=\frac{1}{6}$

Common Difference(d) is

$d=\frac{1}{6}$

8 0

3 years ago

Read 2 more answers

Six boys equally divided a bag of candy. Each boy got 3 pieces of taffy, 2 jawbreakers, and 7 lemon drops. How many pieces of ca

maks197457 [2]

Answer:

72 pieces of candy

Step-by-step explanation:

As we can see, it was AFTER the 6 boys divided the candy in the bag, each boy had 3 pieces of taffy, 2 jawbreakers, and 7 lemon drops.

In order to solve this, we have to work backwards and press rewind.

First, in order to solve this, let's just keep things simple and combine all of he piece of candy that each boy received: 3 taffies + 2 jawbreakers + 7 lemon drops = 12 pieces of candy that each boy received.

Now that we know each of the 6 boys received a total of 12 pieces of candy, let's press rewind and imagine that they all put them back into the bag.

The first boy puts 12 in the original bag, then the second leaving a total of 24 now, and the third, and so on and so forth.

Once we have the 6th boy put in his share of candy back into the bag, we're left with an original count of 72 pieces of candy.

You can just take the total amount of candy each boy got (12) and multiply it to the number of boys (6) to get 72 pieces of candy.

4 0

3 years ago

rafeal counted a total of 40 white cars and yellow cars. there were 9 times as many white cars as yellow cars. how many white ca

liberstina [14]

360 is the anwer because i multipled 40 white cars by 9 times yellow car to get answer 40×9=360

5 0

4 years ago

Read 2 more answers

What is 49 x 138 - 37 x 49

likoan [24]

49 x 138 = 6762
37 x 49 =1813
6762 - 1813 = 4949 so your answer is 4949.

7 0

3 years ago