Mathematics College

The cost of 30 books is rupees 400 half. Find the cost of one book.
​

Answers

Answer 1

I guess the answer is 6.66 or 13.33

Related Questions

9n+13=3n+62.2
WHATS THE ANSWER PLEASE

Answers

Answer:

n = 8.2

Step-by-step explanation:

9n +13 = 3n + 62.2

=

9n = 3n +62.2 -13

=

9n - 3n = 62.2-13

=

6n = 49.2

=

n = 49.2/6 = 8.2

Help please im stuck

Answers

Answer:

-2x + 6y = 3

4x + 3y = 9

Answer: 2

Explanation:

-2(2)x + 6y = 3

4x + 3y = 9

-8x + 10y = 16

-4x - 5y = 13

Answer:  -1/2

Explanation:

-8(-1/2)x + 10y = 16

-4x - 5y = 13

3x - 8y = 1

6x + 5y = 12

Answer: -2

Explanation:

3(-2)x - 8y = 1

6x + 5y = 12

10x - 4y = -8

-5x + 6y + = 10

Answer: 1/2

Explanation:

10(1/2)x - 4y = -8

-5x + 6y + = 10

1. The nominal rate on Sandra's loan is 7.125%. If the interest is compounded monthly, what rate of

interest is Sandra actually paying? (use the formula)

Answers

Answer:

She is actually paying a rate of 7.36% of interest.

Step-by-step explanation:

The real interest rate, as a decimal, is given by:

[tex]I = (1 + \frac{r}{n})^{n}[/tex]

In which r is the interest rate and n is the number of compoundings during an year.

The nominal rate on Sandra's loan is 7.125%, compounded monthly:

This means that [tex]r = 0.07125, n = 12[/tex]

So

[tex]I = (1 + \frac{0.07125}{12})^{12} = 1.0736[/tex]

As a percentage: 1.0736*100 = 107.36% - 100% = 7.36%

She is actually paying a rate of 7.36% of interest.

What is the measure of ZJKL?

Answers

Answer:

the answer is 97 °

Step-by-step explanation:

angles on a straight line add up to 180

so 180 -83 = 97°

33 Calculaţi, dând factor comun:
a 26*(-12) +26 (-18) + 26.40;
c (-18) (-22) + (-18) (-36) + (-18) - 8;
b 15*(-34) - 15*21 +15*35;
d -26* (-12) - 26*(-18) - 26*40.
Cu rezolvare nu doar rezultatul ​

Answers

Răspuns:

260; 1188; -300; - 260

Explicație pas cu pas:

A.)

26 * (- 12) +26 (-18) + 26,40;

26 (- 12 - 18 + 40)

26 (10)

= 260

C.)

(-18) (-22) + (-18) (-36) + (-18) - 8;

-18 (- 22 - 36 - 8)

-18 (-66)

= 1188

b.)

15 * (- 34) - 15 * 21 + 15 * 35;

15 (-34 - 21 + 35)

15 (- 20)

= - 300

d.)

-26 * (-12) - 26 * (- 18) - 26 * 40.

-26 (- 12 - 18 + 40)

-26 (10)

-260

The scale factor of similar figures is 4/3, and one side of the smaller triangle is 12.

The corresponding side on the larger triangle is 16.

True
False

Answers

Answer:

True

Step-by-step explanation:

Find the sum of an ARITHMETIC PROGRESSION whose first term is 6 and last term is 46​

Answers

Answer:

Step-by-step explanation:

It depends on the number of terms in the progression. If there are n terms:

S_n = n × (6 + 46)/2

What is (8+27)+52and8 +(27+52

Answers

8+27 is 35 + 52 and 8 it’s 95
The answer is 87 for (8+27)+52 how I got that answer was that I added 8+27 then after I got the sum I added it by 52 ... the other problem is still 87 because you still adding the same numbers in a different way .... hope that helps :)

pls help me this is important to me

Answers

Answer:

$320

Step-by-step explanation:

Figure out how many items she'd sell in total by doing 23+17

23+17=40

Now we need to figure out how much she'd make if she sold 40 items

To do this we would do 40x8 since it is $8 for each item

40x8=$320

Macy has completed 78% of the 50 questions on the test. How
many questions has Macy completed?

Answers

Answer:

39

Step-by-step explanation:

Answer:

78% = 78/100

= 0.78

78% of the 50 i equal 0.78 x 50 = 39

Macy has completed 39 questions

A line passes through (1, 1) and ( – 3,5).
What is the equation of the line in slope-intercept form?

Answers

slope = Δy ÷ Δx

y₂-y₁
---------
x₂-x₁

5-1
------- =
-3-1

4
----
-4


slope = -1


y-y₁ = m (x-x₁)

y-1 = -1 (x-1)

y-1 = -x + 1

y = -x + 1 + 1

y = -x + 2


What are the zeros of the graphed function y =
{(x +
3)(x + 5)?
6
O-5 and -3
5
O 5 and 3
O-8 and 5
O 0 and 5

Answers

Answer:

-3 and -5

Step-by-step explanation:

The zeros are where the line touches the x-axis

From the graph we can see that the line touches those points.

You can also determine it from the equation because the equation is in factored form, which is (x-r1)(x-r2)

Remember that it is minus so although it is +3 and +5 the actual zero is negative!!

-5 and -3 because it’s a parabola so whichever two or more is on the x-axis will be your zeros

Please complete this question, the question is saying: write the correct integer in the blank



Is due please. I will give brainlest, and extra points to getting it right.


X-(-3)=x+______. Fill in blank

Answers

Answer:

3

Step-by-step explanation:

Answer:3

Step-by-step explanation:

-(-3=3

Classify the following triangle. Check all that apply.
O A. Obtuse
B. Acute
O C. Equilateral
OD. Isosceles
O E. Right
OF. Scalene

Answers

Answer:

Equilateral C.

Step-by-step explanation:

Those tick marks on the sides symbolize that each side is the same length as the ones next to it

This answer is c. That’s definitely correct

Can anyone help me with this math problem

Answers

Answer:

P(w) = 3x + 4

Step-by-step explanation:

2^x=1/128 solve the equation

Answers

Answer:

x  =  − 7

Step-by-step explanation:

y = 4.5*x^2-9*x+8.5;4.5;-9;8.5

-(((-9)^2-(4*4.5*8.5))/(4*4.5))

-(-9/(2*4.5))

4.5*0^2-(0*9)+8.5

(7*x^5-(5*x^7))^(1/2)+1/((7*x^5-(5*x^7))^(1/2))

Thx so much if you can help!

Answers

Answer:

undefined

Step-by-step explanation:

The line is a vertical line

Vertical lines have an undefined slope

undefined! have a great day!!

what is the answer to 8+9v=8

Answers

the answer is 80 ‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎

you take 9 x 8 and get 72 then you just add 8 to it and get 80.

Describe the characteristics of metal in which metal converts into sheet.​

Answers

Answer:

a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity ( iron, gold, silver, copper, and aluminum, and alloys such as brass and steel)

Step-by-step explanation:

I will mark most branliest HELP ME LLEASE

Answers

Okay wait on I’m figuring it out

please help me with this

Answers

Answer:

the second one

Step-by-step explanation:

five members of the basketball team scored a total of 78 points
a) what was the mean number of points scored per player

b) if i take out jackson's points, the new mean of the remaining players is 12. how many points did jackson score?

Answers

a. 15.6 (78/5)

b. I think it would be 12.48

RIP my points went down alot ;-; gived away 1k+ points today. sry i couldnt give more. ill give brainliest to first person that answered

Answers

Heya, how are you doing today ^-^

Simplify: -(sqrt 16x^2) if x<0

Answers

Answer:

16 x²

Step-by-step explanation:hope this helps and maybe you could give me a brainlist?

Select the correct answer.
Use this tax table to find how much tax you need to pay on a taxable income of $40,000.
The tax is:
If taxable
income is over-
But not
over-
SO
$7,825
$31,850
$77,100
$7.825 10 percent of the
amount over SO
$31,850 $782.50 plus 15 percent
of the amount over
7,825
$77,100 $4,386.25 plus 25
percent of the amount
over 31,850
$160,850 $15,698.75 plus 28
percent of the amount
over 77.100
$349.700 $39,148.75 plus 33
percent of the amount
over 160,850
no limit S101,469.25 plus 35
percent of the amount
over 349.700
S160,850
S349,700
OA
$6,423.75
OB
$8.150.50
OC. $12.536.25
Reset
Net
Reset
Next

Answers

I don’t really understand your question can you go into detail more please

a Quadratic pattern has a second term equal to 1,a third term equal to-6 and a fifth term equal to -14​

Answers

Quadratic sequences

A sequence is a set of numbers that are connected in some way. In this section we will look at quadratic sequences where the difference between the terms changes.

Quadratic sequences

If the difference between the terms changes, this is called a quadratic sequence.

If you use the formula n2 + n to make a sequence, it means that:

When n = 1 you get 12 + 1 = 2
When n = 2 you get 22 + 2 = 6
When n = 3 you get 32 + 3 = 12
When n = 4 you get 42 + 4 = 20
- giving the sequence 2, 6, 12, 20.

Here, the differences between terms are not constant, but there is still a pattern.

- the first differences increase by 2 each time
- the second increases by 2

When the second difference is constant, you have a quadratic sequence - ie, there is an n2 term.

Learn these rules:
If the second difference is 2, you start with n2.
If the second difference is 4, you start with 2n2.
If the second difference is 6, you start with 3n2.
Another definition for Quadratic sequence

A quadratic sequence is a sequence of numbers in which the second difference between each consecutive term is constant. This called a common second difference.

Change 15/2 to mixed number

Answers

Answer:

7 1/2

Step-by-step explanation:

Answer:

7 1/2

Step-by-step explanation:

15/2 is 7.5.

7.5 as a fraction is 7 1/2.

So, the answer is 7 1/2.

what is 11 - 10
HELP HURRY PLEASE ANSWER QUICK

Answers

11-10=1

The answer is 1

Find the measure of the numbered angles in each rhombus

Answers

Answer:

Step-by-step explanation:

I thought those lines mean that they are equal meaning that the number is 68.

tax on a $12, 985 car is 6%. what is the total price of the car​

Answers

Answer:

13,764.10

Step-by-step explanation:

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