Does anybody know this???

Does Anybody Know This???

Answers

Answer 1

Answer:

17

Step-by-step explanation:

Let x be the number of books and y the number of CDs,

[tex]x+y=25\\[/tex]

The prices of the products are multiplied with the quantity bought, therefore:

[tex]1.5x + 5y = 65.50[/tex]

Multiplying the first equation by -5, then multiplying the two equations:

[tex]-3.5x=-59.5\\x=17[/tex]


Related Questions

solve for x. round to the nearest tenth. 37 48​

Answers

Answer:

1776

Step-by-step explanation:

How many pints of blood does a person have for every 14 lbs of body weight?

Answers

Answer:

1 pint(of blood) for every 14 lbs of weight

Step-by-step explanation:

Answer:

One pint.

Step-by-step explanation:

A person has approximately one pint of blood for every 14 pounds of body weight.

Hope this helps! :D

after spending 5/6 of his January salary on paying school fees, Bikila was left with ksh 1500. how much money did he earn that month?​

Answers

Answer:

9000

Step-by-step explanation:

HURRY PLEASEEEEE

The measure of segment AB with a(-4,-9) and B(4, -3) is

Answers

Answer: 10

Step-by-step explanation:

using [tex]d = \sqrt{(x_{1}-x_{2} )^{2} +(y_{1}- y_{2} )^{2} }[/tex] when [tex]P_{1} =(x_{1} ,y_{1} )[/tex] and [tex]P_{2} = (x_{2}, y_{2})[/tex]

so [tex]d = \sqrt{((-4)-4)^{2}+((-9)-(-3))^{2} }[/tex]

[tex]d = \sqrt{(-4-4)^{2}+(-9+3)^{2} }[/tex]

[tex]d = \sqrt{(-8)^{2}+(-6)^{2} }[/tex]

[tex]d = \sqrt{64+36}[/tex]

[tex]d= \sqrt{100}[/tex]

[tex]d = 10[/tex]

please give me a brainliest answer

Find the equation of the linear function represented by the table

Y 2 7 12 17
x 1 2 3 4

Answers

Answer:

Step-by-step explanation:

(1, 2) (2, 7)

(7-2)/(2 - 1) = 5/1= 5

y - 2 = 5(x - 1)

y - 2 = 5x - 5

y = 5x - 3

Scarlett has 14 gallons of gas in her car at the beginning of a trip. Every hour Scarlett drives, she uses 2.5 gallons of gas. Answer the questions below regarding the relationship between the gallons of gas remaining in the tank and the total hours driven.

Answers

Answer:N(5)=1.5

Step-by-step explanation:The independent variable x represents the Number of hours driven and the dependent variable is the gallons of gas remaining, because the gallons of gas remaining depends on the number of hours driven.

A function relating these variables is Nx=14-2.5

So N(5)=1.5 meaning 5 hours of driving will result in 1.5 gallons left in the tank.

The ages of a man and his son are in the ratio 4:1. The man is 36years old, how old is the son?

Answers

The son is 9 since 9x4 is 36, so the ratio of their ages is written as 36/9

A woman invested $15,000 part in 7% stocks and the remainder in 9% bonds. If her yearly yield from both investments is $1,230.00, how much did she invest at each rate?

Answers

Using the simple interest relation, the amount invested in stocks and bond respectively is $15,000 and $2000

Simple interest

Principal × rate × time

Let her total principal = p

Stock :

Interest = 15000 × 0.07 × 1 = 1050

Bond :

Interest = (p - 15000) × 0.09 = 0.09p - 1350

Total interest earned :

1050 + 0.09p - 1350 = 1230

-300 + 0.09p = 1230

0.09p = 1230 + 300

0.09p = 1530

p = $17000

Hence,

Amount invested in stock at 7% = $15000

Amount invested in bond at 9% = $17000 - 15000 = $2000

Learn more : https://brainly.com/question/25297296

HELLPPPPPPPPPPPPPPPP

Answers

9514 1404 393

Answer:

3.46 pounds6.92 pounds13.84 pounds

Step-by-step explanation:

The most accurate ratio of pounds to dollars will be found using the given numbers that have the most significant figures. Those are found on the last row of the table:

  pounds/dollar = 34.60/50 = 0.692

To find the other table values, multiply the dollar amounts by this constant of proportionality. The problem statement tells you to round the result to hundredths.

  $5 ⇒ 5.00 × 0.692 = 3.46 pounds

   $10 ⇒ 10.00 × 0.692 = 6.92 pounds

  $20 ⇒ 20.00 × 0.692 = 13.84 pounds

_____

You can also fill in the table by recognizing that $5 is one tenth of $50, so the number of pounds will be one tenth of 34.60 = 3.46. Then each of the following rows doubles the amount on the previous row.

What’s a reasonable domain for V(x)=x(11-2x)(17-2x)

Answers

Answer:

(-∞ , ∞)  -∞ < x < ∞

Step-by-step explanation:

function has no domain constraint

The domain of the expression is all real numbers except where the expression is undefined.

The given function is v(x)=x(11-2x)(17-2x).

What is domain and range of the function?

The B and range are defined for a relation and they are the sets of all the x-coordinates and all the y-coordinates of ordered pairs respectively. For example, if the relation is, R = {(1, 2), (2, 2), (3, 3), (4, 3)}, then:

Domain = the set of all x-coordinates = {1, 2, 3, 4}

Range = the set of all y-coordinates = {2, 3}

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:(−∞,∞)

Set-Builder Notation:{x| x∈ R}

Therefore, the domain of the expression is all real numbers except where the expression is undefined.

To learn more about the domain and range visit:

brainly.com/question/28135761.

#SPJ2

а
Mamadou has a points card for a movie theater.
• He receives 55 rewards points just for signing up.
• He earns 7-5 points for each visit to the movie theater.
• He needs at least 100 points for a free movie ticket.
.

Answers

Answer:

7· 5n + 55 ≥ 100 is required inequality

Step-by-step explanation:

Let he visit be theater x time

→ for new movie ticket

→55+7·5xn≥100

→7·5n+55≥100

Hence, 7· 5n + 55 ≥ 100 is required inequality  

Answer:

Inequality: 7.5v+55≥100

Answer: v≥6

Step-by-step explanation:

Have a good day :)

Solve: sin(11pi/2 +x)= -1/2 for [pi, 2pi]

Answers

Step-by-step explanation:

Step-by-step explanation: Given the expression sin(11pi/2 +x) =-1/2. Take the arcsin of both sides. sin⁻¹[sin(11pi/2 +x)]

Solve for X


Marking you the brainliest​ provided you got it right and with step by step explanation

Answers

Hello Shakirullah25!

[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]

Calculate the values of the angles marked.

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

Refer to the attached picture.

Note :-180° - any angle = its linear pair (if they form a straight line). So, linear pairs are supplementary.Alternate interior angles are equal to each other.Vertically opposite angles are equal to each other.

__________________

Answer :- The value of x specifically is 100° (refer to the attached picture for the steps).

__________________

Hope it'll help you!

ℓu¢αzz ッ

find the values of x and y

Answers

Answer:

x = 68°, y=14

Step-by-step explanation:

∵ m║n

∴ m∠x = 180 - m∠112

m∠x = 68°

∵ ∠x and ∠(5y - 2) are vertically oppose

∴ m∠(5y - 2) = m∠x

m∠(5y - 2) = 68

Make equation

5y - 2 = 68

5y = 68 + 2

5y = 70

y = 70/5

y = 14

Hope this helps

Answer: x = 68, y = 14

Step-by-step explanation:

• The supplement of the angle with the measure of 112° is :

[tex]\bf x + 112 = 180 \\ \bf x = 180 - 112 \\ \bf \boxed{ \color{#FF0000}x = 68 }[/tex]

This angle of 68° and the angle sign x° are in angular positions.

Internal alternators

The lines m and n are parallel, these angles have the same measure.

The marking of the angle x and the marking of the angle (5y-2)° are opposite to the vertex.

They have the same measure:

[tex]\bf 5y - 2 = 68 \\ \bf 5y = 68 + 2 \\ \bf 5y = 70 \\ \bf y = 70 \div 5 \\ \bf \boxed{ \color{#FF0000}y = 14 }[/tex]

Help with question thanks

Answers

Step-by-step explanation:

horizontal asymptote y=0

the graph is in the image above

range[-1, infinity)

domain(-infinity, infinity)

On Friday, 0.325 of the students in
Keisha's math class were absent. What
percent of the students were absent?
Look at picture for choices!! Quick!!

Answers

Answer:

The answer is A

Step-by-step explanation:

A is equal to the amount of students that were absent.

A class has 40 students. Number of boys are 6 more than girls. Find number of boys
and girls in the class.

Answers

Basically let's represent the number of girls with x.

There are 6 more boys than girls, so x+6

Let's sum it all up

x+x+6=40

Collect like terms;

2x+6=40

2x=40-6

2x= 34

Divide both sides by 2

x=17

17+6=23

Therefore there are 17 girls in the class and 23 boys.

please mark Brainliest.

Ratio table and please solve this it the picture I need it for homework

Answers

Answer:

4,12,8            in this order

Step-by-step explanation:

The ones on the top row are double the ones on the bottom row. So the ones on the bottom are half of the number that is above it.

You deposit 572.30 for an account that pays 4.5% interest how much interest you earn after six years

Answers

Answer:

$154.52

Step-by-step explanation:

First, you need to know the formula for this type of question.

The formula is I = Prt. These variables are: I = Interest, P = Principle investment, r = Rate, and t = Time.

So, your equation is I = 572.30(0.045)(6), where you have to find "I".

If you multiply 0.045 and 6, you get 0.27. Then, you multiply 0.27 and 572.30, which is 154.521.

The interest you earn will be $154.521. You can round the thousandths digit based on how you have been taught to do, but I will round the answer to 154.52.

Good luck!

solve pls brainliest

Answers

Answer:

36-9w or -9w+36

Step-by-step explanation:

Distributive Property - a(b-c) = ab-ac

Using that, we have-

9(4-w) = 9(4) - 9(w) = 36-9w

Answer = 36-9w or -9w+36

Thank you! Please Mark Brainliest! :)

Answer:

36-9w

Step-by-step explanation:

9*4=36

9*w=9w

36-9w

Which one is the one?

Answers

Answer:

yes because are slopes are the same

A toy rocket is launched from a platform 33 feet above the ground at a speed of 83 feet per second. The height of the rocket in feet is given by the polynomial −16t2 + 83t + 33, where t is the time in seconds. How high will the rocket be after 3 seconds?

a. 2586 feet
b. 234 feet
c. 138 feet
d. 105 feet

Answers

Answer:

c. 138 feet

Step-by-step explanation:

h(t) = −16t^2 + 83t + 33

At3 seconds

h(3) = -16(3^2) + 83(3) + 33

h(3) = -16(9) + 249 + 33

h(3) = -144 + 249 + 33

h(3) = 138

c. 138 feet

How simplify -8/3 devided by -2/6

Answers

Answer:

The answer is 8

Step-by-step explanation:

-8/3 divided by -1x2 / 3x2

-8/3 divded by -1/3

-8/3 x 3 / 3 x -1 = -8/-1 =  8 x -1 + 0 / -1

= 8

So your answer is 8

Please mark Brainliest I answered First

According to the following image, what is the length of ST?

Answers

Answer:

-4 to 8 I this so but not sure

Help!! Will give brainliest

Answers

Answer:

Last option

Step-by-step explanation:

[tex]-2(z + 3) - z = x - 4(z + 2)[/tex]

[tex]x = -2(z + 3) - z + 4(z + 2)[/tex]

[tex]x = -2z - 6 - z + 4z + 8[/tex]

[tex]x = z + 2[/tex]

Find f-1(x), if f(x) = 3x – 6. Justify your
reasoning with math calculations and/or a written
explanation.

Answers

Answer: 1/3 (x + 6)

Explanation: given f(x) = 3x - 6.
Let y = f(x) and so y = 3x - 6.
Trade places between x and y.
x = 3y - 6
Solve for y
x + 6 = 3y
y = x + 6/3
Now the new y is the inverse and so y = f-1(x)
f-1(x) = 1/3(x + 6)

PLEASE ANSWER FAST!!!

Answers

The second option

B is just being negatively squared two more times

need help desperately.. y – 2.234 = 7.92

Answers

Answer:

251,734.

Step-by-step explanation:

y = 10.154 because you would add 2.234 to 7.92

Zero or undefined algebraic fractions

Answers

Answer:

Step-by-step explanation:a fraction is said to be undefined or have no meaning when the  denominator is 0 .solytion determine whwn the denominator equals 0  set the denominator is zero 0 and solve


How much of the circle is shaded? Write your answer as a fraction in simplest form.

Answers

Answer:

5/28

Step-by-step explanation:

[tex] \frac{1}{4} + \frac{4}{7} = \frac{7 + 16}{28} = \frac{23}{28} \\ 1 - \frac{23}{28} = \frac{5}{28} [/tex]

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