Mathematics Middle School

The two equations from the previous activity are given below.

k = 500 - a
3k + 10a = 3,600 (2)

Now use the substitution method to solve the modified system of linear equations. Solve the system to find the number of kids and adults who visited the carnival.

Answers

Answer 1

3 (500-a)+10 (a)=7200

1500-3a+10(a)=7200

1500+7a=7200

7a=7200-1500

7÷(7a=5700)

a=814.2

lol hagq

Answer 2
814.2 glad I could help!!!

Related Questions

Use the interactive graph to produce an orange line identical to the blue line. Then change the value of b only. Which equation would be parallel to, and have no points in common with, y = 2(x + 3)? y = x + 6 y = –2x –6 y = 2x – 3 y = 2x + 6

Answers

Answer:

Equation c

Step-by-step explanation:

[tex]y = 2x - 3[/tex]

Answer:

C

Step-by-step explanation:did you know the answer is C omg who knew thats crazy its C haha. ITS C !!!!! OMG!!! WOW!!!! THATS CRAZY ITS C!!!!! MAN THATS CRAZY!!!!!!! man

Please help me with this question

Answers

Answer:

The answer is C

Step-by-step explanation:

A) 64.25 - 7.71 = $56.54

B) 72.00 - 14.40 = $57.60

C) 68.75 - 12.38 = $56.38

D) 67.50 - 10.13 = $57.38

D is the answer !
(C, A, D,B)

6. How are slope and rate of change similar ? ( use complete sentence to explain )

Answers

Answer:

Finding Rate of Change. When finding the slope of real-world situations, it is often referred to as rate of change. “Rate of change” means the same as “slope.” If you are asked to find the rate of change, use the slope formula or make a slope triangle.

Step-by-step explanation:

The vertical change between two points is called the rise, and the horizontal change is called the run. The slope equals the rise divided by the run: . .... if coordinates of any two points of a line are given, then the rate of change is the ratio of the change in the y-coordinates to the change in the x-coordinates. (I have no clue if this is right.. )

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Show your work

Answers

Well start with reflecting abc over the y axis

NEED HELP MATH QUESTION

An ant has a mass of approximately 4 x 10-3 grams and an elephant has a mass of approximately 8 x 106 grams.



An ant can lift up to 100 times its mass. How much can the ant lift? Express answer in scientific notation.

Answers

Answer:

sup have you googled it?

Step-by-step explanation:

Mass of elephant/mass of ant = 8x10^6/4x10^-3 = 2x10^9. Therefore, mass of elephant = 2x10^9 times mass of ant.

Answer:

7x10^9

Step-by-step explanation:

PLS HELP ME WITH THIS!!

Answers

Man I can’t see Picture sorry

Answer:

a. 984,060,000 b.27,720,000

Step-by-step explanation:

the percents are 98% salt and 2% fresh

Find -8 ÷ - 1/2

1/16
- 1/4
16
-4

Answers

Answer:

who else got four

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

:D

What does the graph show?
A. Every hour, 3 miles is traveled
B. The graph starts at 3 miles.
C. After 8 hours, the distance is 7 miles.
D. Every 2 hours, 1 mile is traveled.

you can choose more than one answer....

Answers

Answer:

B. the graph starts at 3 miles

Answer:

B

Step-by-step explanation:

hope this helps!

Answer the question please

Answers

Answer:

B

Step-by-step explanation:

22.4/14=1.6

12.8/8=1.6

12/7.5=1.6

26/16.25=1.6

Tom is making a meatloaf with 5/9 pound of turkey and 5/6 pound of ground beef. Find the total number of pounds of meat?

Answers

Answer:

1 7/18

Step-by-step explanation:

17/18 Because the person above me answered right

A gym employee is paid monthly. After working for three months, he had earned $4,500. To determine how much money he will make over a six-month period, he created the table below.

1: If he continues to earn at the same rate, how much will he have earned after working 5 months?
2: After how many months will the gym employee have made $19,500?
3: Write an equation to represent the constant of proportionality.

Answers

Answer: %7,500 , the constant of proportionality would be 1500m (m=one month)

Step-by-step explanation: At this rate, by the time he gets to 6 months he will have made $9,000. Divide this by six to get $1,500 (the unit rate for 1 month). Multiply $1,500 by 5 to get your answer. hope this helps

(NOT SURE ON THE CONSTANT PROPORTIONALITY THING!!!)

After 5 months, he would’ve earned 7500
After 13 months because 1 month would be 1500 and times 13 19500.
1500 times x

Can someone help me I suck at these I have
8x divided by 2 x = 1/2
and
56k divided by 2k k = 3

Answers

the answer for the second one is28 k3 =3

Sophie takes out a loan of $16,500 to help pay her employees this month. The bank she takes the loan from charges her a 1.25% interest fee at the end of the month. How much will Sophie need to pay the bank back at the end of the month?

Answers

Answer: she will need to pay 13,200 by the end of the month

(12.9−3.1)×6.2−2+[tex]4^{3}[/tex]

Answers

Answer:

122.76

Step-by-step explanation:

A number line going from 0 to 4 in increments of 1.

There are 3 equals spaces between each number.

Find: 11/3 ÷ 2/3


The quotient is 5 and _____.

Answers

A number line going from 0 to 4 in increments of 1.

There are 3 equals spaces between each number.

Find: 11/3 ÷ 2/3

The quotient is 5 and _____.

Answer: 1/2

Step-by-step explanation:

I got this correct. <3

In the number line, 11/3 ÷ 2/3 is [tex]5\frac{1}{2}[/tex], The quotient is 5 and 1/2.

What is a number line?

A number line is a one-dimensional horizontal line where we can represent any real number. The origin of the number line is represented by zero left to it are all negative real numbers and right to it are all positive real numbers.

Given, A number line going from 0 to 4 in increments of 1 and there are 3 equal spaces between each number.

Therefore, 11/3 ÷ 2/3.

= 11/3 × 3/2.

= 11/2.

This can be written as [tex]5\frac{1}{2}[/tex].

So, The quotient is 5 and 1/2.

learn more about number line here :

https://brainly.com/question/13425491

#SPJ2

What is the distance between the points(−7, 7) and (−7, 8)?


a.1 unit

b.7 units

c.8 units

d.15 units

Answers

Answer:

1 unit to the right of point (-7,7) but to the left of the point (-7,8)

Step-by-step explanation:

PLEASE HURRY!!
In the time that it takes Car 1 to travel 93 km, Car 2 travels 111 km. If the average speed of Car 2 is 12 km/hour faster than the speed of Car 1, then what is the speed of Car 2? Write and solve a proportion

Answers

Answer:

Car 1=64 km/h

Car 2=74 km/h

Explanation:

The formula for speed is

s=dt

For the first car, we know d

and plugging it into the formula gives us

s1=93t

We know the second car is

12 km/h

faster and the distance is

111 km

, so the formula in terms of the first car's speed would be

s1+12=111

t=s2

Now we can solve for

s1

in the second equation

s1=111t−12

Now we can set the two

s1

equal to each other and solve for

t93t=111t−1293=111−12t=18t=32hours

Now we can plug

t

into the first car equation to solve for the speed of it

s

1

=93 km32h=62 km/h

We know the second car is

12 km/h

faster, so

62 km/h+12 km/h=74 km/h

Step-by-step explanation:

Look at the attached images to answer the question!

Answers

they vary directly (im just writing this cause my answer wasn’t long enough)
A vary directly
Reason:
When number of test increases time also increases

B vary directly
Reason:
When pounds increases cost also increases

What is the function rule represented by the following table?

x y
0 3
1 -1
2 -5

A. y = -3 x
B. y = -2 x - 1
C. y = -2 x + 1
D. y = -4 x + 3

Answers

Answer:

D. y = -4x + 3

Step-by-step explanation:

x y

0 3      -4(0) + 3 = 3

1  -1      -4(1) + 3 =  -1

2  -5    -4(2) + 3 = -5

D. y= -3x Hope this helps you on your test

Lin's family has completed 60% of a trip. They have traveled 30 miles. How long is the whole trip?

Answers

This one’s easy if you know how to do the fractions of 5.

The whole trip is 50 miles because 60% of 50 is 30 miles.

3/5 = 0.6

The number of miles the whole trip is 50 miles.

Given that, Lin's family has completed 60% of a trip.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Let the number of miles be x.

so, 60% of x=30

⇒ 60/100 ×x=30

⇒ 0.6x=30

⇒ x=30/0.6

⇒ x=50 miles

Therefore, the number of miles the whole trip is 50 miles.

To learn more about an equation visit:

https://brainly.com/question/14686792.

#SPJ2

i'll give brainliest if you're correct!

Answers

Answer:

1. C

2. B

Step-by-step explanation:

Answer:

I think it might be C and A but I'm not sure

Step-by-step explanation:

What is Half of a number m increased By five

Answers

I think the answer might be 1/2m + 5

Answer:

1/2m + 5

Step-by-step explanation:

What is 4.37 multiplied by 0.68?

Answers

Answer: 4.37 multiplied by 0.68 is 2.9716.

4.37×0.86=2.9716

Hope this helps!

The answer is 2.9716

Plz help!
Solve for x:
(-5 over 4) x - 5 = -35

1) 23

2) 24

3) -23

4) -24

Answers

Answer:

2) x = 24

Step-by-step explanation:

-5/4x - 5 = -35

~Add 5 to both sides

-5/4x = -30

~Multiply 4/5 to both sides

x = 24

Best of Luck!

X= 24
So it would be the second answer 2.) 24

whats the answer to (-6p + 7) . -4?

Answers

-3 i think i used a calculator
It is -3 maybe I’m not sure

Sebastian drank 3.5 bottles of Gatorade y esterday. Each bot tle contained 1.2 pints of Gatorade. What was the number of pints of Gatorade Sebastian drank yesterday?

Answers

Answer:

4.2 because 3.5 ties 1.2 would be 4.2 i think.

Step-by-step explanation:

Answer:

i think its 4.2

Step-by-step explanation:

Please help me on this.

Answers

Answer:

The third option. (the one where it intersects on the y line)

Step-by-step explanation:

If you solve for the system of equations, you will find that it is (0,3), so it intersects on the y line. Additionally, it is on the top because it is positive.

Will give brainly
!!

Answers

Answer:

wertyuiopjhgfdsw3456789pl,mnbgte78ywhhgr6ydusn56tnhfvbnbfgd

Step-by-step explanation:

use the numbers -4, -1, 3/2, or 2/3 to write an expression that is less than -4

Answers

Answer:

-4+ -1 = -5 which is less that -4

Pls help ASAP will give brainlies

Answers

Answer:

The answer is the third selection

Step-by-step explanation:

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