Diego had $21.32 and gave $9.50 to Elena. How much did he have left?

Answers

Answer 1

Answer:

11.82

Step-by-step explanation: I know this because 21.32-9.50= 11.82


Related Questions

If a varies jointly as b and c,
and a=6 when b=2 and a=3.
Find the variation constant and
the equation of variation.​

Answers

Given:

a varies jointly as b and c.

a=6 when b=2 and a=3.

To find:

The variation constant and the equation of variation.

Solution:

a varies jointly as b and c.

[tex]a\propto bc[/tex]

[tex]a=kbc[/tex]              ...(i)

Where, k is the constant of proportionality.

a=6 when b=2 and a=3.

[tex]6=k(2)(3)[/tex]

[tex]6=6k[/tex]

[tex]\dfrac{6}{6}=k[/tex]

[tex]1=k[/tex]

The value of k is 1.

Putting k=1 in (i), we get

[tex]w=1xy[/tex]

[tex]w=xy[/tex]

Therefore, the variation constant is 1 and the equation of variation is [tex]w=xy[/tex].

Find the measure of each angle

Answers

Answer: x=36°

Step-by-step explanation:

The four interior angles of a quadrilateral always equal 360°, so:

(x+16)+(4x-8)+(4x-8)+x=360

Combine like terms:

360=10x+0

360=10x

36=x

Answer:

In image below

Step-by-step explanation:

How many 1/3 inch cubes does it take to fill a box with width 2 2/3 inches, lengths 3 1/3 inches, and height 2 1/3 inches?

Answers

Answer:

560 cubes

Step-by-step explanation:

width: 8 cubes

length: 10 cubes

height: 7 cubes

volume: 8*10*7=560

divided l, w, and h by 1/3 to get them in cubes

Answer:

Step-by-step explanation:

The awnser is multiply by 9 then multiply by 2

4k + 2 - k + 7 just answer it

Answers

3k + 9 is the answer

Answer:

3k + 9

Step-by-step explanation:

In the diagram below of circle 0, diameter AB is
parallel to chord CD.
A. 110°
B. 70°
C. 55°
D. 35°
If mCD= 70, what is mAC?

Answers

Answer:

C. 55°

Step-by-step explanation:

The computation of mAC is shown below:

Given that

Diameter AB would be parallel to CD

McD = 70

Based on the attached diagram and the above information

mAC is

= (180 - 70) ÷ 2

= 55 degrees

hence, the correct option is third

help i am almost done

Answers

I think it’s D not sure

The graph of a linear system is shown. What is the solution to this linear system? Enter a value in each box to create an ordered pair.

Answers

Answer:

(1,2)

Step-by-step explanation:

The solution would be where both lines intersect.

In this case, the intersected point is (1,2)

Olivia wants to know the proportion of students at her school who use a

certain social media app. She interviews a random sample of students at

her school. She finds that 30% of the students in the sample use the app.

What conclusion can she draw from the sample?

А

It is likely that about 30% of the students at her school use the app.

B Exactly 30% of the students at her school use the app.

Every random sample would find that 30% of the students use

the app

It is likely that 30% of the students at her school were selected for

the sample.

Answers

Answer:

A

Step-by-step explanation:

Random sampling is a sampling method where each sample has an equal chance of being chosen. The random sample chosen is meant to be an unbiased representation of the population.

If 30% of the sample uses the app, it means that 30% of the population are likely to use the app

George spent 1 ½ hours studying on Monday, and 1 ⅔ hours studying on Tuesday. If he spent ¼ of the total time studying math, what fraction of an hour did George spend studying math?

Answers

I believe the answer is 79 minutes, so you could also say an hour and 19 minutes! Hope this helps! <3

please helpp pleasee!!!

Answers

Answer:

The second choice. Because the x-coordinate in the second choice is constant unlike the others, which is a property of a function.

Using the common​ denominator, what is an equivalent fraction for 2/7
​?

Answers

Answer:

The fraction 4/14 is equal to 2/7 when reduced to lowest terms. To find equivalent fractions, you just need to multiply the numerator and denominator of that reduced fraction (2/7) by the same interger number, ie, multiply by 2, 3, 4, 5, 6

20 POINTS! 2 + 4n = 11. What is the answer?

Answers

Answer:

I think the answer would be n = 9/4

Lupita bought 7 pounds of pretzels at a local wholesaler for $16.80. Her friend Charles bought 5 pounds of pretzels at the supermarket for $12.75. Charles thinks he got the better deal because $12.75 is less than $16.80. Is Charles’s reasoning correct? Explain why or why not.

Answers

Answer:

Charles's reasoning is wrong.

Step-by-step explanation:

Lupita has 7 pounds for 16.8 and Charles has 5 pounds for 16.8.

Let's set up ratios.

So Lupita got the best deal, not Charles. Poor him.

Someone help please I need help!!

Answers

Answer:

hello

Step-by-step explanation:

adjacent angles are equal to 180 degrees,

[tex](2x + 9) + (5x + 3) = 180 \\ 8x + 12 = 180 \\ 8x = 180 - 12 \\ 8x = 168 \\ x = \frac{168}{8} \\ x = 21 \\ \\ [/tex]

but, for some reason, does not match the answers…

Can the answers be wrong?

or I miscalculated…

i hope it helps have a nice day

Answer:

24

Step-by-step explanation:

(2x + 9 )+ (5x + 3) = 180

x = 24

(I just guessed and checked. It was multiple choice so why not?)

Can anyone give me the awnser?​

Answers

Answer:

Step-by-step explanation:

You want to reverse the algebra and solve for y. First you want to subtract the 'a' to both sides.

x - a = -2by^2

Divide by -1 on both sides

-x + a = 2by^2

Divide by 2b on both sides

(-x + a)/2b = y^2

Take the square root of both sides

[tex]\sqrt{(-x+a)/2b}=y[/tex]

A teacher has an annual income of $40,400. The income tax the teacher has to pay is 6.5%. What is the amount of income tax the teacher has to pay?

Answers

40,400x0.065= 2626

They will pay $2,626.00 in income taxes.

Help! I can’t wait, if you don’t know don’t anwser just to get points

Answers

Answer:

the answer is 6.

-9

-8(1)

-7(2)

-6(3)

-5(4)

-4(5)

-3(6)

solve the inequality 31< 3x+4

Answers

31 < 3x+4

subtract 4 from both sides

27 < 3x

divide by 3 from both sides

9 < x

A group of 12 adults and 26 children go to a theme park.
The total cost of tickets was £1804.80
And adults ticket costs £51.60
Find the cost for a child

Answers

Answer:

45.56923076923077

Step-by-step explanation:

Work out 51.6 x 12 which is 619.2 and subtract that from 1804.80 then x your answer which is 1,184.8 and divide by 26 to get your answer which is 45.569....

20 points.


Find the equation of the line: which passes through (1,-7) and is perpendicular to (-4,6) and (5,-3)

Answers

Answer:

-9 6 that is because the line has to be perpenducular to the other line

Step-by-step explanation:

Slope of line between points (-4, 6) and (5, -3)

=> Rise / Run

=> [6 - (-3)] / [(-4) - 5]

= 9 / (-9)

= -1.

Thus slope of perpendicular line

= -1 / (-1) = 1.

We have y = x + c.

When x = 1, y = -7.

=> (-7) = (1) + c, c = -8.

Hence y = x - 8.

Neeeeddddd helllppp nowwwwww!!!!

Answers

Answer:

the area is 670.32 but it's not in there

If f(x) = 2x - 10, what is f(4)?
O A. -18
B. 8.
C. - 2
D. 2

Answers

Answer:

The answer is -2 or C

Step-by-step explanation:

Just input 4 into the equation as x. f(4)=2(4)-10. This gets you 8-10 which is -2. Hope this helps!

Answer:

hey there, person with the same name as me lol. the answer is c. -2

Step-by-step explanation:

in the question they showed that f(x) = 2x - 10

when they ask for the value of any number like f(4)

just replace the variable with this number

for this it will be

2x - 10  = 2 * 4 - 10

which is 8-10

which is equal to -2

you're welcome....

8 oranges cost $.78. How much will he spend to buy 40 oranges

Answers

Answer:

$3.90

Step-by-step explanation:

To get from 8 to 40, you multiply by 40/8, so you have to do the same to $.78. .78 * 40/8 is equal to 3.9, which would be $3.90.

Rewrite the fraction in the sentence below as a percentage.
19
At a certain wedding,
of the guests were under 65 years old.
20

Answers

Answer: 95%

Step-by-step explanation:

19/20 divide

=0.95 turn into fraction form

= 95/100

=95%

PLS JUST GIVE ME ALL THE ANSWERS TO THIS WORKSHEET I BEG U ANYONEEE

Answers

Ask your friends because I don’t know

Triangle ABC is graphed on a coordinate plane with vertices at A(-3, 7), B(9,-8), and C(-5, -6). If triangle ABC is dilated
by a scale factor of 2 with the origin as the center of dilation to create A'B'C', what will be the coordinates of the dilated
vertex of B'?

Answers

Answer:

  B' = (18, -16)

Step-by-step explanation:

Dilating means to stretch or shrink a figure. The scale factor tells us how much we are stretching or shrinking. The scale factor is 2, so the coordinates are multiplied by 2.

PLS HELP ME!!! which matrix represents the system of equations below {8x-9y+13z=11

{-8x-5y+5z=15

{3x+4y-8z=-10

Answers

Answer:

The answer is below

Step-by-step explanation:

The system of equations:

8x-9y+13z=11

-8x-5y+5z=15

3x+4y-8z=-10

The equations can be represented in matrix form as:

AX = B

X = A⁻¹B

Therefore:

[tex]\left[\begin{array}{ccc}8&-9&13\\-8&-5&5\\3&4&-8\end{array}\right] \left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{c}11\\15\\-10\end{array}\right]\\\\\\\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{ccc}8&-9&13\\-8&-5&5\\3&4&-8\end{array}\right] ^{-1}\left[\begin{array}{c}11\\15\\-10\end{array}\right]\\[/tex]

[tex]\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{ccc}\frac{1}{19} &-\frac{1}{19}&\frac{1}{19}\\-\frac{49}{380}&-\frac{103}{380}&-\frac{36}{95} \\-\frac{17}{380}&-\frac{69}{380}&-\frac{28}{95} \end{array}\right] \left[\begin{array}{c}11\\15\\-10\end{array}\right]\\\\\\\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{c}-0.74\\-1.69\\0.13\end{array}\right] \\[/tex]

3. A team of biologists tagged 48 seals off the coast of an island. Later they captured a
sample of seals from the same area and found that 15% of them had tags. Use this
information to estimate the number of seals in the area.

Answers

Step-by-step explanation:

A team of biologists tagged 48 seals off the coast of an island.

later they captured a sample of seals from the same area and 15% of them had tags.

Estimate the total number of seals.

15 : 100 : : 48 : x

x

=4,800/15

=320

The total number of seals is about 320.

I hope it's helpful!

a bat and a baseball costs $1.10. the bat costs $1 more than the ball. how much does the ball cost?

Answers

Answer:  0.10

Step-by-step explanation:

because u said that the bat was 1.00 more than the ball so the ball would be 0.10

A scale drawing of a building shows 1 inch = 8 feet. How many feet are represented by 3 ¾ inches on the drawing?

Answers

Answer:

30 feet

Step-by-step explanation:

3x8=24 ft

3/4x*8= 6 ft

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