20 points for this cuz i don't know what the he|| I'm doing. Explanation would be nice but if not that's fine​

1. 99 = 33x + 3(3x + 5)

⇒99 = 33x + 9x + 15

⇒99 = 42x + 15

⇒99 - 15 = 42x

⇒84 = 42x

⇒42x = 84

⇒x = 84/42

⇒x = 2

2. 12z - (4z + 6) = 82

⇒12z - 4z - 6 = 82

⇒8z - 6 = 82

⇒8z = 82 + 6

⇒8z = 88

⇒ z = 88/8

⇒ z = 11

3. 2x + 3x = 62

⇒5x = 62

⇒ x = 62/5 or x = 12.4

4. 4n + 5 = 6n + 7

⇒4n - 6n = 7 - 5

⇒-2n = 2

⇒ n = -2/2

⇒ n = -1

5. 23m - 5 = 21m + 5

⇒23m - 21m = 5 + 5

⇒2m = 10

⇒ m = 10/2

⇒ m = 5

6. 3p - 8 = 13 - 4p

⇒3p + 4p = 13 + 8

⇒7p = 21

⇒ p = 21/7

⇒ p = 3

7. 17x - 3 + 17x + 8 = 175

⇒17x + 17x - 3 + 8 = 175

⇒34x + 5 = 175

⇒34x = 175 - 5

⇒34x = 170

⇒ x = 170/34

⇒ x = 5

8. ƒ + 41 + ƒ + 78 = 95

⇒ƒ + ƒ + 41 + 78 = 95

⇒2ƒ + 119 = 95

⇒2ƒ = 95 - 119

⇒2ƒ = -24

⇒ ƒ = -24/2

⇒ ƒ = -12

9. 3x + 18 + 93 = 180

⇒3x + 111 = 180

⇒3x = 180 - 111

⇒3x = 69

⇒ x = 69/3

⇒ x = 23

10. 6x + 2 + 40 = 90

⇒6x + 42 = 90

⇒6x = 90 - 42

⇒6x = 48

⇒ x = 48/6

⇒ x = 8

11. k + 37 + k + 67 + 90 = 180

⇒k + k + 37 + 67 + 90 = 180

⇒2k + 104 + 90 = 180

⇒2k + 194 = 180

⇒2k = 180 - 194

⇒2k = -14

⇒ k = -14/2

⇒ k = -7

12. 3w - 6 + 8w + 4 + 50 = 180

⇒3w + 8w - 6 + 4 + 50 = 180

⇒11w - 6 + 54 = 180

⇒11w + 48 = 180

⇒11w = 180 - 48

⇒11w = 132

⇒ w = 132/11

⇒ w = 12

13. 8 + 6x = 4x + 2 + 30

⇒6x - 4x = 2 + 30 - 8

⇒2x = 32 - 8

⇒2x = 24

⇒ x = 24/2

⇒ x = 12

14. 46 + 8h - 1 = 18h + 5

⇒ 46 - 1 - 5 = 18h - 8h

⇒ 46 - 6 = 10h

⇒ 40 = 10h

⇒ 10h = 40

⇒ h = 40/10

⇒ h = 4

15. 9x - 2 + 12x - 4 = 20x + 5

⇒ 9x + 12x - 20x = 5 + 2 + 4

⇒ 21x - 20x = 11

⇒ x = 11

Answer:

False

Step-by-step explanation:

 Mid point of a segment divides the segment in two equal parts.

Value of x is 3.

  It's given in the question,

Therefore, EF = FG = (6x + 7)

And EF + FG = EG (By segment addition postulate)

Now substitute the values in the expression

(6x + 7) + (6x + 7) = (18x - 4)

12x + 14 = 18x - 4

12x - 18x = -14 - 4

-6x = -18

x = 3

            Therefore, the value of x is 3.

Learn more,

https://brainly.com/question/3225782

Answer:

it is a, b, and c, but not d

Answer:

1.92

Step-by-step explanation:

2.40 is more than 1.92

Answer: 0.8/11.08= 0.07220216606 or .0.7

Hope this helps!

Answer:

I know the first one is 6, since there's 6 sides

The second one should be Plane BDHF, since those two are exactly the same

Don't know the third one

The fourth should be segments AC, EG, and FH since they're all the same

Answer:

y+12=m

Step-by-step explanation:

m (marys mangos)

Answer:

Mary's mangoes = y + 12

Step-by-step explanation:

Let's assume that,

→ Mary's mangoes = x

→ Jason's mangoes = y

The information given,

→ Mary has 12 more mangoes than Jason and Jason has y mangoes.

Now we have to,

→ find the mangoes Mary has now.

Forming the equation,

→ Mary's = Jason's + 12

→ [ x = y + 12 ]

Hence, the answer is x = y + 12.

Answer:

320  

Step-by-step explanation:

hope this helps :)

Answer:

The short run or long run process by which a firm determines the price and output level that returns the greatest profit.

Step-by-step explanation:

.......................................................:<

Answer:

91.125

Step-by-step explanation:

Total number/ Total number of quantity

16+32+10+28+8+19+32+26+33+39+98+399

729

Divode by number of quantity (8)

729/8

=91.125

Hope this helps, dont hesitate to Ask in comment below. Mark me as brainliest also appriciated!!

Hello!

To solve this, you need to distribute and combine like terms.

Like terms are equivalent types of numbers for example;

2x and 3x are like terms, so if the equation said 2x - 5 + 3x, you would only combine 2x and 3x.

If the equation said 5 + 9 - x, you add the like terms, 5 + 9, and the simplification would be 14 - x.

Distribution is when you multiply the number outside the parenthesis into the parenthesis. for example, if an equation says, 5(x-2) = y, you would multiply 5 on the numbers x and -2, resulting in the equation, 5x - 10 = y.

--------Now lets work on your math problem.

Step 1, right the equation, 7(-9a-3)-2a7(−9a−3)−2a

Step 2: distribute numbers (remember multiplying)

7(-9a-3)-2a7(−9a−3)−2a

For the first distribution, 7(-9a-3)-2a7(−9a−3)−2a

you multiply 7 to the numbers in the parenthesis,

resulting in,

-63a - 21

Second distribution is, 7(-9a-3)-2a + 7(−9a−3)−2a

in which you multiply -7 into the numbers in the parenthesis resulting in;

-63a - 21

(did you type the equation twice if so, there are now two problems i need to solve.)

now add like terms -2a + -2a = -4a

-63a - 21 + -63a - 21 = -126a - 42

-126a - 4a - 42

Answer is -130a - 42.

If your equation was actually this, : 7(-9a-3)-2a

Then the answer would have been, -65a - 21

9514 1404 393

Answer:

  15 ft below the top of the water

Step-by-step explanation:

We can let distances "below the top of the water" be represented by negative numbers. Then the initial height of Jesse's hook was -12 ft. Adding line allowed his hook to sink further:

  -12 +(-3) = -15

The depth of Jesse's hook now is 15 feet below the water surface.

Answer:

(-2, 5)

Step-by-step explanation:

If point T is at coordinates (2, 5) then the reflection should be (-2, 5).

Answer:

[tex] \frac{ \sqrt{2} }{4} [/tex]

Step-by-step explanation:

attached

Answer:

h = 5

Step-by-step explanation:

area = 1/2 base × hight

base = 3 +h

hight =9 + 6 = 15

60 = 1/2 × 15 × (3+h)

120/15 = 3 + h

8 = 3 + h

h = 5

Answer:

h = 5

Step-by-step explanation:

The value of h can be obtained by using area of triangle formula as well as distance formula.

[tex]A(\triangle ABC) =\frac{1}{2} \times AB\times AC \\ \\ 60 = \frac{1}{2} \times \sqrt{ {( - 3 + 3)}^{2} + (9 + 6) ^{2} } \\ \times \sqrt{ {(h + 3)}^{2} + {(9 - 9)}^{2} } \\ \\ 60 \times 2= \sqrt{ {( - 0)}^{2} + (15) ^{2} } \\ \times \sqrt{ {(h + 3)}^{2} + {(0)}^{2} } \\ \\ 120= \sqrt{ 0 + (15) ^{2} } \times \sqrt{ {(h + 3)}^{2} + 0 } \\ \\ 120= \sqrt{ (15) ^{2} } \times \sqrt{ {(h + 3)}^{2} } \\ \\ 120 = 15(h + 3) \\ \\ \frac{120}{15} = h + 3 \\ \\ 8 = h + 3 \\ \\ h = 8 - 3 \\ \\ h = 5[/tex]

Answer:

4 1/2

Step-by-step explanation:

Answer:

the answer 4 1/2  that is what i got

Step-by-step explanation:

Answer:

The first box (upper left corner)

Step-by-step explanation:

Since the y-intercept is 1/4 (you can find this where x = 0), in slope intercept the second number must equal the y-intercept.

Example:

y = 3x + 2 (0,2) is the y-intercept.

Therefore, the second number must equal 1/4 which the first box is correct.

(Negative 1/4 multiplied by -1 equals positive 1/4)

Answer:

5 1/2

Step-by-step explanation:

5 42 is less than 5.50= 5 1/2, 5.2 is = 5.20 which is agian smallier than 5.50 and same with 5.25.

Answer:

x=-12

Step-by-step explanation:

AC=AB+BC

x+29=2x+33+8

x-2x=33+8-29

-x=12

x=-12

Answer:

9-5.   10  11.

Step-by-step explanation:

Answer:

0.411522634. dotn ask me how i got it (calculator)

Step-by-step explanation:

Answer:

X=20º

Step-by-step explanation:

This is a vertical angle meaning both sides are congruent to each other.

Meaning: (x+100)º= 6x

Solve:

(x+100)º= 6x

-x              -x

100º=5x

/5 .     /5

x=20º

Answer:

Ans is D

In the figure, you are given that the radius is 10 inch. So, diameter will be 10*2= 20 inch.

Now,

C=πd

= 3.14*20 inch

=62.8 inch