Last year, Mia spent $31.68 on 24 pens, each of which cost the same amount of money. (a) How much did each pen cost? Show the work that leads to your answer. (b) This year, Mia needs to buy 30 pens, each of which costs $1.45. How much more will Mia need to spend on pens this year than last year?

Answer:

it looks decent just give it make it more detailed otherwise it looks good

Answer:

your drawing is good but I can't understand your ques

Answer:

5

Step-by-step explanation:

2*5 = 10

Answer:

how many days it i think it would be 6 days.

Step-by-step explanation:since he has already jared 4 littters you subtract 40-4 which equals 36 then do multiples of 6 till you get to 40

Answer:

6 days

Step-by-step explanation:

y = 6x + 4

40 = 6x + 4

40 - 4 = 6x

36 = 6x

36/6 = 6x/6

6 = x

Answer:

THANK YOU?

Step-by-step explanation:

DNSNJSMSNNFJD

Please, give me brainliest

Answer:

HI

Step-by-step explanation:

WOW

Answer:

Add -3 and 7. 4

Step-by-step explanation:

Uh ur welcome

Answer:

4

Step-by-step explanation:

I do it this way whenever there is a  - and a - I just add them but add negative sign. IF like in this problem - and a + I subtract...

Hope this helps :3

Answer:

Step-by-step explanation:So, if the graph is a straight line, it is the graph of a linear function. From a table, you can verify a linear function by examining the x and y values. The rate of change for y with respect to x remains constant for a linear function. This rate of change is called the slope.Mar 9, 2011

Answer:

625%

Step-by-step explanation:

6.25 multipied by 100 equals 625.

Answer:

Natalie will have [tex]1\frac{43}{56}[/tex] jars of coins all together after receiving John's coins.

Step-by-step explanation:

Given that:

Coins Natalie have = [tex]1\frac{1}{8}[/tex] jars of coins

Coins John have = [tex]\frac{9}{14}[/tex] jars of coins

When John will give all his coins to Natalie.

Total coins Natalie have = Her coins + John's coins

Total coins Natalie have = [tex]1\frac{1}{8}+\frac{9}{14}[/tex]

Total coins = [tex]\frac{9}{8}+\frac{9}{14}[/tex]

Total coins =[tex]\frac{63+36}{56}=\frac{99}{56}[/tex]

Total coins = [tex]1\frac{43}{56}[/tex]

Hence,

Natalie will have [tex]1\frac{43}{56}[/tex] jars of coins all together after receiving John's coins.

Answer:

A,C,D

Step-by-step explanation:

Answer:

2.50 a cookie

Step-by-step explanation:

Because you divide 30/12 and it doesnt equal a whole number because its in dollars if that makes sense

Answer:

you would divide 30/12= 2.5 per cookie

Step-by-step explanation:

Answer:

Y=2

Step-by-step explanation:

YW thanks!

Answer:

parallel lines never  intersect

perpendicular  lines intersect at a right angle

Step-by-step explanation:

Answer:

-p²q² + 9p² + 4q² + 24pq - 36

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

Step 1: Define expression

(p² - 4)(9 - q²) + 24pq

Step 2: Simplify

Answer:

9p^2-p^2q^2-36+4q^2=24pq

Step-by-step explanation:

multiply the parentheses

multiply the term in the first (   ) by each term in the second (   )   (FOIL)

9p^2-p^2q^2-4x9-4x(-q^2)=24pq

Multiply the numbers (multiplying two negatives = a positive )

9p^2-p^2q^2-36=4q^2+24pq

Hope that helps

Answer:

x = 30

Step-by-step explanation:

We have to find x

Given that:

20% of x = 12 % of (x +20)

This can be written as:

0.2(x) = 0.12 (x + 20)

0.2x = 0.12x + 2.4

Subtracting 0.12x from both sides we get:

0.2x - 0.12x = 0.12x - 0.12x + 2.4

0.08x = 2.4

Dividing both sides by x we get:

0.08/0.08x = 2.4/0.08

x = 30

Answer:

x = 30

Step-by-step explanation:

Set up an equation:

0.2x = 0.12(x + 20)

Distribute 0.12 and solve for x:

0.2x = 0.12x + 2.4

0.08x = 2.4

x = 30

So, the answer is x = 30

Answer:

y + (1/4)(x + 4)

Step-by-step explanation:

One point on the graph is (-4, 0); another is (4, 2).

The change in x from the first point to the second is 8; this is the 'run.'

The change in y is 2 (which is 2 - 0).  This is the 'rise.'

Thus, the slope of the line is m = rise / run = 2/8 = 1/4

Let's use the point-slope form of the equation of a straight line:

y  - k = m(x - h).  Substituting 0 for k and -4 for h, we get:

y - 0 = (1/4)(x + 4), or

y + (1/4)(x + 4)

Answer:

200

Step-by-step explanation:

10*20=200.

I am not positive what you are asking but that is the answer I am able to give at this moment.

I hope I at least helped you. :)

Complete question :

A college is funded depending on the mean number of credit units a student takes. A survey involving 16 students yielded the mean number 12 units with a standard deviation 3 units. Assume normal population

If th ere are 10,000 stu dents enrolled in the college an d the institution is funded at the rate of $300 per student unit. At the 95 % confidence level, estimate the interval th at covers the total funding of the college . for full credit, round the answer to TWO decimal places!

Answer: (35823600 , 36176400)

Step-by-step explanation:

Mean number of units = 12

Standard deviation = 3

Number of samples (n) = 10000

Fund rate = 300

Mean = 10000 * 300 * 12 = 36000000

Standard deviation = 10000^0.5 * 300 * 3 = 90000

Fir 95% C. I

Z0.05 = 1.96

Interval = mean ± 1.96 * SE

(36000000 - 1.96*90000) ; (36000000 + 1.96*90000)

(35823600 , 36176400)

Answer:13,7,8 but if there’s an answer choice go with 7,8

Step-by-step explanation: Assuming b is an integer, we first look at factors of 4, being 1 and 4 or 2 and 2. The factors of 3 are 1 and 3 only. So the factorisation possibilities are (x+3)(4x+1), (4x+3)(x+1) and (2x+1)(2x+3).

Expanding these we get: 4x²+13x+3, 4x²+7x+3 and 4x²+8x+3, giving values of b=13, 7 and 8

The possible values of b in the given polynomial are 7, 8 or 13.

In mathematics, a polynomial is an expression consisting of indeterminates (also called variables) and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer powers of variables.

Given is a polynomial, 4x²+bx+3, we need to find all possible values of b such that 4x²+bx+3 can be factored.

4x²+bx+3

4×3=2×2×3

2×2×3 = 2×6 and 2+6 = 8

2×2×3 = 4×3 and 4+3 = 7

2×2×3 = 12×1 and 12+1 = 13

b=7, b=8, and b=13

4x²+7x+3 = (4x+3) (x+1)

4x²+8x+3 = (2x+1) (2x+3)

4x²+13x+3 = (4x+1) (x+3)

Hence, the possible values of b in the given polynomial are 7, 8 or 13.

Learn more about polynomial click;

https://brainly.com/question/11536910

#SPJ2

Answer:

16:9

Step-by-step explanation:

Answer: A

Step-by-step explanation:

Answer:

A. Rachel is correct; Graph S is nonproportional.

Step-by-step explanation:

Answer:

A 454545 is the correct answer

Answer:

its 241

Step-by-step explanation:

i did it on khan

Answer:

Ramon, 16 hours

Step-by-step explanation:

Answer: d. 92

Step-by-step explanation: 150 time for equals 600. so all you gotta do is multiply 23 times 4

Answer: 108.1 g

Step-by-step explanation:

432.4/4 = 108.1

Answer:

. umm whats the question

Step-by-step explanation:

Answer:

the answer is d

Step-by-step explanation:

For 55 you times the average by the time it took and you get 55 same with kick 2 so kick 3 would be 2 seconds because 15 times 2 is 30

Answer:

x=-1

Step-by-step explanation:

I'm weird and love these types of problems.

Ok first off we need to get x alone. To do that we need to first get rid of the 7.

We can do that by adding it because you have to use the opposite operation to get rid of it.

5x - 7 (+7) = -12 (+7)

See if you add -7 + 7 you get 0 which is why you have to use the opposite.

5x = -5

To get x alone you have to divide 5 because 5 is being multiplied by x.

5x(/5) = -5(/5)

x= -1

So x= -1

If you ever need more help, don't be afraid to reach out. I hope that helps!

Answer:

I think it is -1

Step-by-step explanation:

Because -1 x 5 equals -5 and -5 - 7 equals - 12