Math help plz.
Explanation for each plz!!, thx
9th grade math

Answer:

[tex]78\% \times 158 \\ \\ = \frac{78}{100} \times 158 \\ \\ = \frac{3081}{25} = 123.24[/tex]

Answer:

10 weeks

Step-by-step explanation:

Let's set an equation for you and your brother.

You have $90 plus $18 for every week you save (x).

90+18x

And your brother has $120 plus $15 dollars per week that he saves (x)

120+15x

You want to have the sum of the money equal so combine the two concluded statements

90+18x=120+15x

Arrange them so that you have like terms on each side

90+18x-15x=12+15x-15x

90+3x=120

90-90+3x=120-90

3x=30

x=10

"x" is our number of weeks you and your brother save so the answer is 10 weeks

Just to be sure you can use our equation and plug 10 for every time you see x to make sure our answer is right.

Answer:

C. (0, 7)

Step-by-step explanation:

Just use a graphing calculator.

Answer:

∠ CDB = 43°

Step-by-step explanation:

Angles subtended at the circumference by the same arc are congruent.

The arc CB subtends both ∠ CAB and ∠ CDB , thus

∠ CDB = ∠ CAB = 43°

Answer:

Number of points need = 6 points

Step-by-step explanation:

Given:

New average = 5

Points peter has = 44

Total quiz play = 9

Find:

Points required for average of 5

Computation:

Total number of match = 9 + 1

Total number of match = 10

Average points = 5

Assume;

Number of points need = x

So,

Average points = [Total points] / Total number of match

5 = [44+x] / 10

50 = 44 + x

x = 6

Number of points need = 6 points

The score does Peter needs on his tenth and final quiz in order to have a final quiz average of 5 is 6 and this can be determined by using the formula of average.

Given :

Peter scored a total of 44 points on 9 math quizzes.

The following steps can be used in order to determine the score of the tenth quiz:

Step 1 - The formula of average can be used in order to determine the score of the tenth quiz.

Step 2 - According to the given data, Peter scored a total of 44 points on 9 math quizzes. Now, let the score of the final tenth quiz be 'x'.

Step 3 - The average of the 10 quizzes is given by:

[tex]\dfrac{44 + x }{10}=5[/tex]

Step 4 - Simplify the above expression in order to determine the value of 'x'.

50 = 44 + x

x = 6

For more information, refer to the link given below:

https://brainly.com/question/15385899

Answer:

360

Step-by-step explanation:

thank me later :)

Answer:

3,600 degrees

Step-by-step explanation:

I had this on my test and got it right

Answer:x

+

4

Explanation:

Product is the answer to a multiplication.

The multiplicative inverse is the same as the reciprocal.

(

5

x

+

20

)

×

1

5

=

5

x

+

20

5

=

x

+

4

Step-by-step explanation:

Answer:

x+4

Step-by-step explanation:

This is because the multiplicative inverse of 5 is the reciprocal, or 1/5. This is then multiplied (distribution) to (5x+20), simplifying to x+4.

Answer:

X^2 - 3

Is the answer

Step-by-step explanation:

Use a^2 - b^2 = ( a - b) (a + b)

a = x

b =

[tex]b = \sqrt{3} [/tex]

[tex]x^2+10x+22=13\\x^2+10x+22-13=0\\x^2+10x+9=0\\[/tex]

Now completing the square.

[tex](x^2+10x)+9=0\\(x^2+10x+25)+9-25=0\\(x+5)^2-16=0\\(x+5)^2=16[/tex]

(x+5)² = 16 is the rewritten equation... For first question btw.

For the solutions to the equation -

[tex]x+5=\sqrt{16},-\sqrt{16} \\x+5=4,-4\\x=4-5,-4-5\\x=-1,-9[/tex]

x = -1,-9 is the solution, for the second question.

Answer:

x=8

Step-by-step explanation:

2x-3-4(2x-3)=17-7x

2x-3-8x+12=17-7x

-6x+9=17-7x

x= 8

Answer:

Your equation is y= 1/3x + 2

and your first point is (3,3) Hope this helps

Step-by-step explanation:

x-3y=-6

-x       -x

-3y=-x-6

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

      -3

y= 1/3x + 2

Answer:

y=1/3x+2 is your equation in slope intercept form

Step-by-step explanation:

on will be at (0,2) and the other would be at (3,3) then your next one would be  (6,4)

Answer:

Yvonne should pick mixture B which has a lesser concentration of chili oil.

Step-by-step explanation:

Bob's soup concentration = 18 drops / 4 cups = 9 drops / 2 cups = 4.5 drops/cup

A. 18 / 2 = 9 drops/cup which is a greater concentration

B. 18 / 5 = 3.6 drops/cup which is a lesser concentration

C. 20/ 4 = 5 drops/cup which is a greater concentration

D. 22/ 4 = 5.5 drops/cup which is a greater concentration

Answer:

Liliana has 27 candies from her teacher. But her mother didn't want her to eat too much candy, so she took 11 of Liliana's candies.

Step-by-step explanation:

Hope it help, and please give me Brainlest!

Answer:

angle bisector

Step-by-step explanation:

because you are given the two angles that both measure 35

Answer:

2.8490281e+23

Step-by-step explanation:

Answer:

any of the factors of a product considered in relation to a specific factor especially : a constant factor of a term as distinguished from a variable. 2a : a number that serves as a measure of some property or characteristic (as of a substance, device, or process) coefficient of expansion of a metal. b : measure

Step-by-step explanation:

Answer:

in math it is this:

a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4xy).

in physics it is this:

a multiplier or factor that measures some property

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

275 divided by 32 in equal to 8.59, so you just have to round up  but that last trip just wont be full

Answer:

9 roller coaster rides. hope this helps!

Step-by-step explanation:

A roller coaster can hold 32 people at a time.

there are 275 people waiting in line.

How many trips will it take for there to be 0 people waiting in line?

We know the roller coaster can hold 32 people at a time, and 275 people are waiting in line.

275/32=8 rides and 19 people left.

If you don't know how to do that: 275 people at first. 275-32 because the roller coaster can only hold 32. Repeat that process untill you find your answer.    

So we have 8 rides, and 19 people left? It doesn't matter, It will not take, half the time left, or more time to get it done. So anything below or equal to 32 people will take the same amount of time. So our final answer is 9 rides. Not 8.59375.

Answer:

$3.77 * 10^7

Step-by-step explanation:

$35,200,000 + $2,500,000 = $37,700,000 = $3.77 * 10^7

Answer:

Step-by-step explanation:

Converting numbers into scientific notation:

Answer:

[tex] - \frac{9}{2} [/tex]

Step-by-step explanation:

12-3 for the change from the y-intercept

9/-2

[tex] - \frac{9}{2} [/tex]

Answer:

Elijah spent $33 in all.

Step-by-step explanation:

Multiply 5.25 by 5 to get 26.25, then add 6.75 to that to get 33. Hope this helps :)

Answer:

Here, the term "imaginary" is used because there is no real number having a negative square. There are two complex square roots of −1, namely i and −i, just as there are two complex square roots of every real number other than zero (which has one double square root).

Step-by-step explanation:

Answer:

Step-by-step explanation:

36 times 36 is 1,296

Answer:

m∠MON = 15°

Step-by-step explanation:

The given parameters are;

m∠LON = 77°

m∠LOM = 9·x + 44°

m∠MON = 6·x + 3°

By angle addition postulate, we have;

m∠LON = m∠LOM + m∠MON

Therefore, by substituting the known values, we have;

∴ 77° = 9·x + 44° + 6·x + 3°

77° = 9·x + 44° + 6·x + 3° = 15·x + 47°

77° = 15·x + 47°

77° - 47° = 15·x

15·x = 77° - 47° = 30°

15·x = 30°

x = 30°/15 = 2°

x = 2°

Given that m∠MON = 6·x + 3° and x = 2°, we have;

m∠MON = 6 × 2° + 3° = 12° + 3° = 15°

m∠MON = 15°.

Answer:

The answer is 50 degrees

Step-by-step explanation:

The small box at the corner of the triangle indicates that the triangle is exactly 90 degrees, or a right angle. In order to solve the expression, you would need to do 40 + x = 90, which would be x = 50

Answer:

It should be 40 degrees, If you have a protractor, you could measure it.

Step-by-step explanation:

I think it's 40 degrees because if you fold it in half, it would probably match.

Not the best explanation, sorry.

Answer:

y = -2x + 6

Step-by-step explanation:

Point slope form is y - y1 = m(x-x1)

y - (-2) = -2(x-4)

y + 2 = -2x + 8

y = -2x + 6

S+6=C

Its not possible because we have no clue as to how old carl is so we can find simone's age

Answer:

equation- y + 6 = x

Step-by-step explanation:

no, because it doesn't give enough information. all we know is that Simone is six years older than Carl.