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NeX [460]
3 years ago
7

In the past ten years, the population of a city decreased from 90,000 to 75,000 Find the percent decrease.

Mathematics
1 answer:
vfiekz [6]3 years ago
8 0
The answer is 31.5%.
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A carpenter is making doors that are 2058.0 millimeters tall. If the doors are too long they must be trimmed, and if they are to
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666 smocced out locced out
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3 years ago
Read each word problem and write an expression that would allow you to solve the problem.
Gnom [1K]

Answer:

The answers for your 10-question problem are

Problem 1  

4 miles

Problem 2

y = 4*x + 2

Where y is the amount spent in dollars, and x is the price per one bag of vegetables.

Problem 3

She needs to sell 10 glasses

Problem 4

y = 2*x

Problem 5

y = 2*x

Problem 6

y = (1.5)*x

Problem 7

y = (7)*x

Problem 8

y = (12)*x

Problem 9

y = 30*x

Problem 10

the statement is TRUE, m can have any value

Step-by-step explanation:

Problem 1

Jenna walks 1 mile in 12 minutes

This means that she covers 1/12 th of a mile in one minute

The equation that represents this problem is

y = (1/12)*x

Where y is the number of miles covered, and x is the walking time in minutes.

If she walks 48 minutes, she will travel  y = (1/12)*48 = 4 miles

Problem 2

Loaf of bread ----> $2

4 bags of vegetables -- > Price unknown

TOTAL AMOUNT SPENT

y = 4*x + 2

Where y is the amount spent in dollars, and x is the price per one bag of vegetables.

Problem 3

$1 per glass of lemonade

$9 dollars per supply

y = 1*x - 9

Where y is the amount obtained in dollars, and x is the number of glasses of lemonade sold.

if y >0, she will make profit,  (y>9) This means she needs to sell 10 glasses

Problem 4

Assuming that John's dad doubles the amount John makes each week.

The expression is

y = 2*x

Where y is the amount obtained in dollars, and x is the amount saved by John himself each week.

Problem 5

The donor is giving Christina 2 dollars per mile

The expression that represents this condition is

y = 2*x

Where y is the amount obtained in dollars, and x is the number of miles traveled.

Problem 6

For each pound collected, Kenna will receive $1.50

The expression that represents this condition is

y = (1.5)*x

Where y is the amount obtained in dollars, and x is the number of pounds of magazines collected.

Problem 7

Graham made 7 pennants in an hour. Based on this relation, He will make 14 in two hours and 21 in three hours.

The expression that represents this condition is

y = (7)*x

Where y is the amount of pennants made, and x is the number of hours worked on a day.

Problem 8

Maddy earns $12 per hour. Based on this relation, she will make $24 in two hours and $36 in three hours.

The expression that represents this condition is

y = (12)*x

Where y is the amount obtained in dollars, and x is the number of hours worked in a night.

Problem 9

Steven practices his trumpet for 30 min each day. The amount of time practiced is given by the following relation

y = 30*x

Where y is the amount of time practiced in minutes, and x is the number of days of the month that he practiced in.

Problem 10

Determine whether the statement is true or false

In m + 8, the variable m can have any value.

Since there are no restrictions imposed on the value of m, and the expression is not part of a certain equation or condition, the statement is TRUE. m can have any value

5 0
3 years ago
A band sells tickets to a concert cost either $15 for adults or $10 for students. A total of 150 tickets are sold. If the band m
kodGreya [7K]

Answer:

Number of adult tickets sold= 100

Step-by-step explanation:

Giving the following information:

Adults tickets= $15

Student tickets= $10

Number of tickets sold= 150

Total sales= $2,000

<u>First, we determine the systems of equations:</u>

15*x + 10*y= 2,000

x + y = 150

x= number of adults tickets sold

y= number of students tickets sold

<u>Now, we isolate x in one equation, and substitute it in the other one:</u>

x= 150 - y

15*(150 - y) + 10y = 2,000

2,250 - 15y + 10y = 2,000

250 = 5y

50= y

x= 150 - 50

x= 100

<u>Prove: </u>

15*100 + 10*50= 2,000

100 + 50 = 150

3 0
3 years ago
Read 2 more answers
Which is the equation of the line with slope 5 that contains point (-2, -3)?
aksik [14]
The equation of the line is A
5 0
3 years ago
Read 2 more answers
How many multiples of 7 are there between 100 and 1000.
vivado [14]
So after 100 its 105,112,119...........994
x=7(multiples of what we're finding), y=105(where we start from after 100), a multiplied by z=994
we have to find z

994=105+(z-1)7
994-105=7z-7
889+7=7z
896=7z
z= 128
8 0
4 years ago
Read 2 more answers
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