Help lol I dunno what to do

Answer:

75

Step-by-step explanation:

If 30 students represent 40% of the class, we can divide 30 by .40 to get 75.

Answer:

8+12v

Step-by-step explanation:

Answer:

x=510

Step-by-step explanation:

You can first combine like terms to get x/17=30

The inverse operation of division is multiplication so you can multiply by 17 on both sides to get your final answer: x=510

Answer:

Frequently, we know the new amount and the percent change and need to know the original amount. We found that a $600 TV on sale for 30% off, cost $420 on sale. We might think, that to find the original cost of the TV that has a sale price of $420 after a sale of 30% off, we could just take 30% of the $420 cost and add it back to the $420 to find the original cost.

30% of $420 is 0.30($420) = $126 and $420 + $126 = $546.

Or, 130% of $420 is 1.3($420) = $546.

Notice that this is not the $600 original list price with which we started.

Step-by-step explanation:

Answer:

y=1/4x-5

Step-by-step explanation:

Answer:

y = 1/4x - 5

Step-by-step explanation:

y = mx + b is the equation of a straight line.

m = slope, b = y intercept. (y intercept is the point where the line of the graph crosses the y axis)

(0, -5) is the y intercept (if you were to graph this point, it would be on the y axis, fitting the previous description)

the slope is 1/4

replace each variable in the equation, and you get:

y = 1/4x - 5

Answer:

D

Step-by-step explanation:

D is the only option where there's always 0 or positive integers inside the radical. The square root of a negative number is imaginary.

Answer:

hM

Step-by-step explanation:

Answer:

use the slope formula y2-y1/x2-x1 and you should get -5-0/-2+3= -5 which means the rate of change should be 5

Answer:

5

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

n hc l

a n w t

yan lng po Ang Alam k

Answer:

y = (10/7)x

Step-by-step explanation:

Ok so this is a hard question but I believe the answer is y = (10/7)x

Step-by-step explanation:

the answer is

4x-7<5

4x<12

x<3

Answer:

30

Step-by-step explanation:

pretty sure it is that

Answer:

First you mark me Brainlyist

Step-by-step explanation:

Then you you use the intervol of I don’t know then you ask someone else

Answer:

50

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

180-135=45

45+95=140

180-140=40

Given:

A circle with center O.

[tex]m\angle MOP=45^\circ, m\angle PON=85^\circ[/tex].

To find:

The measure of arc MN.

Solution:

We know that,

[tex]m\angle MON=m\angle MOP+m\angle PON[/tex]

[tex]m\angle MON=45^\circ+85^\circ[/tex]

[tex]m\angle MON=130^\circ[/tex]

The central angles in equal to the measure of the corresponding arc.

[tex]Arc(MN)=m\angle MON[/tex]

[tex]Arc(MN)=130^\circ[/tex]

Therefore, the measure of arc MN is 130 degrees.

Answer:

Interest = $1330

Amount = $4830

Step-by-step explanation:

Given

Principal = $3500

Rate = 4.75%

Time T = 8 years

Interest =PRT/100

Interest = 3500*4.75*8/100

Interest = 35*4.75*8

Interest = $1,330

Hence the interest earned by Mr. Bayless is  $1,330

Amount after 8years = Principal + Interest

Amount after 8years = 3500+1330

Amount after 8years = $4830

Hence the amount after 8years is $4830

Answer:

-2x-10

Step-by-step explanation:

Distributive Property is basically a term for opening parentheses. So, in your case -2(x+5) we would multiply x and 5 by -2. X times -2 is -2x and 5 times negative 2 is -10. -2x-10 would be your final answer.

[tex]\huge\bold{ANSWER:}[/tex]

-2x-10

[tex]\bf{EXPLANATION:[/tex]

Hi there!

Here's what the Distributive Property states:

a(b+c)=ab+ac

So, we take a number outside the parentheses, and "distribute" it.

In this case, we should distribute -2:

-2(x+5)

-2x-10 (a negative times a negative is a positive)

Hope it helps!

Enjoy your day!

Feel free to ask if you have any doubts! :)

[tex]\mathfrak{SilentNature~a.k.a.Sparkles}[/tex]

10-x =5

-x= 5-10

-x = -5

x= 5

Answer:

what the other person said

Step-by-step explanation:

Answer:

The answer is a b and there is one more but I don’t know it I’m sorryyyy

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

6(z^2-3)

Step-by-step explanation:

6z^2-18=6(z^2-3)

Answer:

0.16

Step-by-step explanation:

4*5*1=20

9*7*2=126

20/126=10/63

Answer:

10/63

Step-by-step explanation:

First, let's solve 4/9 * 5/7. Multiply the numerator first- 4*5=20. The denominator is 9*7=63. So, this equals 20/63. Now we need to find 20/63 * 1/2. We can cancel out the 2 on the denominator and divide 20 on the numerator by 2. So, you get 10/63 * 1/1, which is 10/63.

For this case we have the following system of equations:

We multiply the second equation by -3:

Thus, we observe that the second equation is equivalent to the first, if we add both we get:

The equality is fulfilled. The lines are on top of each other.

Answer:

Infinite solutions

Answer:

$169803

Step-by-step explanation:

Given data

rate of decrease = 5.4%

time = 2009-2021= 12years

P=  $331,000

Let us apply the compound interest formula

A=P(1-r)^t----------------note the minus sign because this is a decrease

A= 331000(1-0.054)^12

A= 331000(0.946)^12

A= 331000*0.513

A=$169803

Hence the value in 2021 is $169803

Answer:

B

Step-by-step explanation:

8a+24