Tickets for a school jazz concert were sold before the concert and at the door. After reviewing ticket sales, the band director found that 80 fewer tickets were purchased at the door than before the concert. A total of 520 tickets were sold. Let d represent the number of tickets sold at the door and b represent the number of tickets sold before the concert. Latifa wrote the following system of linear equations to find the number of each type of ticket sold:

d + b = 520. d minus 80 = b.

What is Latifa’s error?
Latifa should have written the first equation as d minus b = 520.
Latifa should have written the second equation as d + b = 80.
Latifa should have written the first equation as b + 80 = 520.
Latifa should have written the second equation as d + 80 = b.

Answers

Answer 1

Answer:

D

Step-by-step explanation:


Related Questions

PLEASE HELP. I NEED TO GET THIS RIGHT

Answers

Ciro is right

Gerard is wrong

Gunther is also wrong

Equal expression:

1 - 2(40x - 12)

Maria wanted a sewing needle that had the smallest diameter. Which needle diameter is the smallest?

0.101 in
0.011 in
0.11 in
0.001 in

Answers

0.001 hope this helps

Help help help help

Answers

The answer is 4. 2x plus 7 is equal to 15. First you subtract 7 from both sides then divide by 2 to get the answer 4. Hope this helps!

In ΔGHI, the measure of ∠I=90°, the measure of ∠G=62°, and GH = 96 feet. Find the length of IG to the nearest tenth of a foot.

Answers

Answer:

45.1feet

Step-by-step explanation:

Given the following

∠I=90°

∠G=62°, and

GH = 96 feet = Hypotenuse

Required

IG = Adjacent side

Using the SOH CAH TOA identity

Cos theta = Adj/hyp

Cos 62 =IG/96

IG = 96cos62

IG = 96(0.4695)

IG = 45.1feet

Hence the length of IG to the nearest tenth is 45.1feet

Answer: 45.1feet

Step-by-step explanation:

The quadrant that contains the point (-7,-16) is quadrant PLSS ANWAR NOW NEED HELP NOW

Answers

Answer:

hi how may i help

Step-by-step explanation:

how can i help u

CAN SOMEONE PLEASE HELP ME WITH THIS ITS DUE TODAY

Answers

1.  4 x 31 is 124

2. 7 x 49 is 658

3. 16 x 48 is 608

4. 8(5 + w) is   8w + 40

5. 11(9 + d) is   11d + 99

6. 15(p + 4 + 2) is   15p + 90

7. Let's simplify step-by-step.

2x−4+3x

=2x+−4+3x

Combine Like Terms:

=2x+−4+3x

=(2x+3x)+(−4)

=5x+−4.

8. Let's simplify step-by-step.

4y−1−3y−2

=4y+−1+−3y+−2

Combine Like Terms:

=4y+−1+−3y+−2

=(4y+−3y)+(−1+−2)

=y+−3.

9. Let's simplify step-by-step.

x+2(x−4)

Distribute:

=x+(2)(x)+(2)(−4)

=x+2x+−8

Combine Like Terms:

=x+2x+−8

=(x+2x)+(−8)

=3x+−8.

10. Part A)

The jazz band sells 31 large boxes of fruit and 74 small boxes of fruit.

For each large fruit box, the price is $20 and cost is $x.

Profit is defined as Price - Cost.

So, profit for one large fruit box = 20 - x

Profit for 31 large fruit boxes = 31(20 - x)

Price of each small fruit box is $10 and cost of each small fruit box is $y. The profit for each small fruit box is 10 - y.

Profit for 74 small fruit boxes = 74(10 - y)

The total profit for 31 large boxes and 74 small boxes will be:

Total profit = 31 (20 - x ) + 74(10 - y)

Using distributive property, we can simplify the above equation as:

Total profit = 31(20) - 31x +74(10) - 74y

Total profit = 1360 - 31x - 74y

Part B)

Cost of each large box is given to be $9. This means x = 9

Cost of each small box is given to be $4. This means y = 4

Using the values of x and y in the profit equation we can find the profit of the Jazz Band.

So, Jazz Band's Profit = 1360 - 31(9) - 74(4)

Jazz Band's Profit = $ 785

Thus the profit of Jazz Band will be $785.

Have A good day!! Hope I helped!!! ^-^

) Jess has saved dimes ($ 0.10) and quarters ($ 0.25) in their piggy bank. Define the variables and write a
system of equations to determine the number of dimes and quarters if they have 25 coins worth $4.00
in total. Then solve the system using the best method for the situation.

Answers

Answer:

Quarters = 10

Dimes = 15

Step-by-step explanation:

d = number of dimes, q = number of quarters

d + q = 25 is the equation for number of coins

0.1d + 0.25q = 4 is the equation for value of coins

First, solve for d in terms of q:

d + q = 25

d = 25 - q

Then substitute that into the other equation:

0.1(25 - q) + 0.25q = 4

2.5 - 0.1q + 0.25q = 4

0.15q = 1.5

q = 10

And back to d = 25 - q, d = 25 - 10 = 15

Check the math:

0.1(15) + 10(0.25) = 1.5 + 2.5 = 4

LMK if you have questions

Every five years in August, the population of a certain city is recorded. In 2010, the city had a population
of 7500 people. From 2010 to 2015, the population decreased by 20%. From 2015 to 2020, the
population increased by 55%. What was the city's population in 2020? (3 points)

Answers

Answer:

10,000

Step-by-step explanation:

yes

8 1/3 33/4 8.287 8.29 order from least to greatest

Answers

Answer:

33/4 - 8.287 - 8.29 - 8 1/3

----------------------------------------------------------------------------------------------------------------

pls can i get brainliest it took soo long to figure out

I need help please. The question is A rectangle is shown below.What is the area of the rectangle in square feet.

Answers

Answer:

84 ft^2

Step-by-step explanation:

To find the area of this rectangle we multiply width and length

8 × 10.5 = 84 ft^2

-3/4 ( 8y - 12 ) + 1/5 ( 15y - 30 )

Answers

I think it is......
-3(y-1)

hey guys i need some help on this division problem i have

Answers

Answer:

3. 25/28

4. 1 1/7

Step-by-step explanation:

when you divide fractions just flip one of them and then multiply across

so instead of 5/7 ÷ 4/5 its

5/7 • 5/4

please mark me brainliest to help me get ace rank


Which of the following statements must be true about this diagram? Check
all that apply.
A. Z>X
B. W>y
C. W >X
D. y+z= w
E. x + y = w
F. x + y = 2

Answers

Answer:

f

Step-by-step explanation:

I'm pretty sure it's f from what I know

Need answers right away due tonight please. Geometry composite shapes.

Answers

3x32=96
96x6=576
I think it says 32 if not the just change it to what it does say


There are 1,000 meters in 1 kilometer. How many kilometers are in 3,600 meters?


HELP

Answers

Answer:

A. 3.6 kilometers

Step-by-step explanation:

1000 meters = 1 km

3600 meters = x km

Set as a ratio:

1000 : 1 = 3600 : x

Then divide:

[tex]\frac{3600}{1000} = \frac{x}{1} = x[/tex]

so 3600/1000 = 3.6 = x

3.6 km

Dunkin Donuts sold 1,600 drinks in one day. Of those drinks, 87.5% of them were coffee . How many of the drinks were coffee?

Answers

Answer: 1400 is coffee.

Step-by-step explanation:

Two different formulations of an oxygenated motor fuel are being tested to study their road octanenumbers. The variance of road octane number for formulation 1 is ı2 = 1.5, and for formulation, 2it is ı2 = 1.2. Two random samples of size n1 = 15 and n2 = 20 are tested, and the mean roadoctane numbers observed are x1 = 89.6 and x2 = 92 5. Assume normality. Find the 95%confidence interval for the difference in the mean octane number.

Answers

Answer:chomai

Step-by-step explanation:chomai

19.214÷13
pls someone help me

Answers

Answer:

1.478

Step-by-step explanation:

Please help, will give brainliest! Which is NOT equivalent to this expression? 4(3x^2+6x)

Answers

12x^2+6x is not equivalent

3 Convert 6,23 kg to grams​

Answers

Answer:

6230 grams xD

Step-by-step explanation:

6230 grams..

( it says i have to write 20 letters so i just did this)

If 2/3x-1=4, then X =
A) 15/2
B) 9/2
C) 13/3
D) 10/3

Answers

The correct answer is A.

Explanation: just took a quiz

Answer: Its 15/2(A)

Step-by-step explanation:

2/3-1=4

Multiply both sides of the equation by 3

2x-3=12

You move constant to the right and you change the sign. Like this: 2x=12+3

Then you add the numbers and you get 2x=15

Divide both of the sidea and you get:x=15/2 which is your answer

Let me know if this helps

Find the value of −12 + 8 −(−9). Question 20 options: −13 −5 13 5

Answers

Answer:

D) 5

Step-by-step explanation:

-12 + 8 + 9 = 5

The radius of a circleIs 3 inches what is the circles area

Answers

Answer:

28.27

Step-by-step explanation:

area of circle: πr^2

π(3)^2

=9π = 28.27

Which relation is a function?

A. {(0, 1), (0, 2), (1, 2), (1, 3)}
B. {(8, 1), (4, 1), (0, 1), (–15, 1)}
C. {(–2, –12), (–2, 0), (–2, 4), (–2, 11)}
D. {(–4, –6), (–3, –2), (1, –2), (1, 0)}

Answers

a is a function
expiation:

In a cooler there are 5 orange juices, 2 apple juices and 6 grape juices. In a large bag there are 2 ham sandwiches and 7 turkey sandwiches.



If you choose a random juice from the cooler and a random sandwich from the bag, what is the probability you get orange juice and a ham sandwich? Round your answer to the nearest hundredth (2 decimal places).

Answers

Answer:

10/117 or 8.55% or 0.09

Step-by-step explanation:

5/13 x 2/9 = 10/117

The probability you get orange juice and a ham sandwich is,

⇒ 10/117

What is mean by Probability?

The term probability refers to the likelihood of an event occurring. Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one

Given that;

In a cooler there are 5 orange juices, 2 apple juices and 6 grape juices. In a large bag there are 2 ham sandwiches and 7 turkey sandwiches.

Hence, Total number of juice in a cooler = 5 + 2 + 6 = 13

And, Total number of sandwiches = 2 + 7 = 9

Thus, The probability you get orange juice and a ham sandwich is,

⇒ 5 / 13 × 2 / 9

⇒ 10/117

Learn more about the probability visit:

https://brainly.com/question/13604758

#SPJ3

Help fast please....

Answers

Answer:

46 yd²

Step-by-step explanation:

Help for brainiest
please explain how you got it :D it would help so I can understand how to do the rest

Answers

Answer:

Option D

Step-by-step explanation:

Formula to use: V=[tex]\frac{1}{2}(b*a)*h\\[/tex]

b=base of triangle   a=altitude of triangle  h=height of prism

Doing [tex]\frac{1}{2}(b*a)[/tex] is essentially finding the area of the triangle and after multiplying by h will give you the volume of the triangular prism.

Solve: V = [tex]\frac{1}{2}(3*3)*7[/tex]  or option D

Ps. Altitude is perpendicular or 90 degrees to the side I used for the base, so it wouldn't be option C.

ayuda plis es para hoy.​

Answers

Answer:

8.29

Step-by-step explanation:

Cada linea representa ,1

y como es la ultima linea de las 9 antes del 8,3 la respuesta es 8.29

PRETTY MUCH A FREE BRAINLIEST IF UR RIGHT, GOOD LUCK :D. Value of x is greater than or equal to 14

Options:

x>14

x<14

x≥14

x≤14

Answers

Answer:

3rd choice down. . . . . . .

x≥14  plz give me brainlyest

During a competition, numismatist Aditi has been given Rs. 200 in Rs.1 denominations. The judge asks Aditi to allocate the Rs. 1 denominations into a number of pouches such that any amount required between Rs.1 & Rs. 200 can be given by giving out a certain number of pouches without opening them. Aditi thinks and asks the judge to give her 'x' number of pouches to keep the money, where 'x' is the minimum number of bags required to keep the total money. Can you guess the value of 'x'?

Answers

9514 1404 393

Answer:

  8

Step-by-step explanation:

If the bags can either be given or not, each bag can assume one of two states. In order for there to be 200 possible combinations of items in one of two states, there must be at least log2(200) = 7.64 items. The minimum number of bags is x = 8.

_____

The contents of the 8 bags will be Rs. 1, 2, 4, 8, 16, 32, 64, 73.

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