Step-by-step explanation:
We know that a linear equation with two variables has infinitely many ordered pair solutions that form a line when graphed. A linear inequality with two variables, on the other hand, has a solution set consisting of a region that defines half of the plane.
Brad put 10 crickets in his pets lizard cage. After one day, Brad's lizard had eaten 50% of the crickets he had put in the cage. By the end of the next day, the lizard had eaten 20% of the remaining crickets. How many crickets were left in the cage at the end of the second day?
Answer:
There are 4 crickets left
Step-by-step explanation:
10/2=5
20% of 5 is 1
5-1=4
Don't forget to brainliest me
Answer:
4 crickets
Step-by-step explanation:
On the first day, the lizard ate 50% of the 10 crickets it was given. 50% of 10 is 5 (10 times 0.5), so five crickets remain. The next day, the lizard ate 20% of the 5 remaining crickets. 20% of 5 is 1 (5 times 0.2), and 5-1=4, so 4 crickets are left.
An Xbox that normally sells for $390 is on sale at a 25% discount. What is the sale price of the Xbox? Round to the nearest cent.
Answer: $292.50
Step-by-step explanation:
The easiest way to do this is
Take $390 and multiply it by 0.75 (1-0.25)(.25 for the 25 percent off)
$390(0.75)
$292.50
Answer: 292.50
Step-by-step explanation:
Match each equation with a solution from the list of values.
1. 2a=4.6
2. b+2=4.6
3. c÷2=4.6
4. d−2=4.6
5. e+38=2
6. 18f=3
7. g÷85=1
(these aren't important below this)
85
158
2.3
2.6
6.6
9.2
24
USE THESE LETTERS PROVIDED TO GIVE ME AN ANSWER.
D
G
C
E
F
B
A
Answer:
1.C
2.E
3.B
Step-by-step explanation:
1. 2a/2=4.6/2= a=2.3
2. b+2-2=4.6-2= b=2.6
3. c/2*2= 4.6*2= c=9.2
I hope you understand
All the parts are solved below.
What is a function? What is equation modelling? What is a mathematical equation and expression?In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the functionEquation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.Given are the equations -
1. 2a=4.6
2. b+2=4.6
3. c÷2=4.6
4. d−2=4.6
5. e+38=2
6. 18f=3
7. g÷85=1
We have -
[1] -
2a = 4.6
a = 2.3
[2] -
b + 2 = 4.6
b = 2.6
[3] -
c ÷ 2 = 4.6
c x 1/2 = 4.6
c = 4.6 x 2
c = 9.2
[4] -
d − 2 = 4.6
d = 6.6
[5] -
e + 38 = 2
e = - 36
[6] -
18f = 3
f = 3/18
f = 1/6
[7] -
g ÷ 85 = 1
g x 1/85 = 1
g = 85
Therefore, all the parts are solved above.
To solve more questions on equations, expressions and polynomials, visit the link below -
brainly.com/question/17421223
#SPJ2
Pls help will give brainliest
Answer:
y = x - 1
Step-by-step explanation:
You know the y-intercept has to be -1. Also, to figure out the slope you can just pick out two coordinates that lie on the line, and use the slope forumla.
For example: (2,1) and (3,2)
[tex]m=\frac{2-1}{3-2} = \frac{1}{1} =1[/tex]
Simplify this expression. Enter your answers in the boxes.
8.9 – 1.4x + (–6.5x) + 3.4
_________–____________-- x
hey, i'm trying to get a phone 8 but i don't have enough money. i'm trying to figure out how long it'll take me to get it. if you can tell me how long it'll take ill give you brainliest :) i need $177, i'm getting an allowance of $5 a week after march 5. i have $16 rn.
Answer:
you would need to multiply each day by 5 so it would be it would take you 20 days to get 200 do it will take u less than 20 day:)
Answer:
It will take you about 33 weeks off of an allowance of 5$ a week
Step-by-step explanation:
HELP ME WILL MARK BRAINLIEST PLEASE I NEED HELP FOR BOTH QUESTIONS!!!!
I THINK YOU HAVE TO ZOOM IN A BITH PLSSSSS HELP MEE!!!!!!
Answer:
For the first problem A. and E.
For the second problem D. and E.
Step-by-step explanation:
For the first problem A is equivalent to 3/4 and E is less than 3/4
For the second problem 4 ÷ 0.5 = 8 and 5 × 4 = 20 + 3 = 23
Answer:
the first one's a and e.the second one is DNC
i need some help ill give a nice brainliest if u help
Answer:
Step-by-step explanation: Yes, they are equivalent.
50 POINTS!! A picture shows the net of the lateral surface of the cone. Which statement about this cone is NOT true?
A football stadium sells three different brands of bottled water: Crystal Clear, Pure Refresh, and Spring Fresh.
Answer:
50.7
Step-by-step explanation:
hebebejjsbwiwbwbwjwjwh
pls help pls i will make u a brainliest if its correct
help im just doing this for my brother :C
Answer:
578
Step-by-step explanation:
118 + 560 = 678
678 - 100 = 578
578 is your answer
Answer:
578
Step-by-step explanation:
Add 18 to 560 and you get 578. Reason why is because they subtracted 18 from 118 and now you got to add it to 560. Hope that made sense
12 gallons of water are used to completely fill 5 fish tanks. If each tank holds the same amount of water, how many gallons will each tank hold?
Answer:
2.4
Step-by-step explanation:
12 ÷ 5 = 2.4
have a nice day!
Write an expression for 4(x + 6)
Answer:
Your final answer will be, x^2 +4x -12
Step-by-step explanation:
Find the missing measure (x) of the triangle.
Answer:
x = 34 degrees
Step-by-step explanation:
all angles of a triangle add up to 180 degrees
x = 180-90-56 = 34 degrees
Solve this equation:
3 (5x + 2) - 7 (3x - 4) = (5 - 9x) 2
I need step by step explanation with details.
Thank you!
Answer:
x = - 2
Step-by-step explanation:
3(5x + 2) - 7(3x - 4) = (5 - 9x)2
15x + 6 - 21x + 28 = 10 - 18x
34 - 6x = 10x - 18
-12x = 24
x = -2
y−5x=3 solve for y please
Answer: INDEiAaaaaaaaaaaaaaaa
Answer:
y=-5x-3
Step-by-step explanation:
i have no explanation but I hope this helps!
Help 7TH GRADE math I give out good rating and BRAINIEST!
Answer:
12.6
Step-by-step explanation:
If 21 divided by 5 is 4.2, you should multiply 3 by 4.2 you'll then get 12.6. to double check, do 5 divided by 3, which is 1.67, and 21 divided by 12.6 is also 1.67. so side OP is 12.6! :)
Answer:
i don't know sorrryyy
Step-by-step explanation:
im very sorry because im sor busy
Which equation has the solution x = 6?
Select true if the equation has the solution x = 6. Select false if the equation does not have the solution x = 6. x3×6=18 is False, 4(x+2)=16 is true, x−2=2 is False and 3x + 8 = 14 is true.
Answer:
1. false 2. true 3. false 4. false
Step-by-step explanation:
ASAP HELP WANTED NOW!
During a game of tug-of-war, your teacher states that your team’s current position is -5 steps. What does this statement mean?
A. Your team is 5 steps forward from the starting point.
B. Your team is 5 steps back from the starting point.
C. The distance between your team and the other team is 5 steps.
D. Your team just took 5 steps forward.
PLEASE HELP ME!!
What is the surface area of the figure?
9514 1404 393
Answer:
B. 24 cm²
Step-by-step explanation:
The formula for the area of a triangle is ...
A = 1/2bh
Here, you have a base of 4 cm and a height of 3 cm, so the area is ...
A = (1/2)(4 cm)(3 cm) = 6 cm²
__
The rectangle on the right is 3+1.5 = 4.5 cm high, and 8 -4 = 4 cm wide. Its area is ...
A = WH
A = (4 cm)(4.5 cm) = 18 cm²
The total area is the sum of the areas of the parts:
total area = triangle area + rectangle area
total area = 6 cm² + 18 cm² = 24 cm²
PLEASE HELP THIS ASSIGNEMNT IS TIMED I will give brainliest!!
Two trains, Train A and Train B, weigh a total of 417 tons. Train A is heavier than Train B. The difference of their weights is 249 tons. What is the weight of EACH train?
Destiny just received two separate gifts from her great-great-grandmother.
The first gift is a box of 181818 chocolate candy bars, and the second gift is a pack of 121212 cookies.
Destiny wants to use all of the chocolate candy bars and cookies to make identical snack bags for her cousins.
What is the greatest number of snack bags that Destiny can make?
-1/2 (−4n+6)+3n=47 solve n=?
Answer:
N:10
Step-by-step explanation:
Answer:
N = 10
Step-by-step explanation:
isolate the variable by dividing each side by factors that don't contain the variable
PLZ GIVE BRAINLIEST
pls help asap giving out brainliest and high stars <33 7TH GRADE
1.) On Monday, 437 students went on a trip to the zoo. All 8 buses were filled and 5 students had to travel in cars. How many students were in each bus?
2.) Mike buys four equally priced DVD’s online. Each DVD costs the same amount. With a $5.98 shipping charge included, the total cost came to $79.94. Write and solve an equation to find the cost of each DVD.
3.) A rectangle has a length of 3 ⅞ inches and an area of 6 15/16 square inches. Write an equation that represents the area of the rectangle in terms of its length and width, w.
Answer:
1 i think
Step-by-step explanation:
Complete the following statement.
3 gal = pt
Answer:
24 pints
Step-by-step explanation:
x = # pints in 3 gal
8 p / 1 g = x / 3
cross-multiply:
x = 3(8) = 24
plz help. i will give brainliest
Mother has purchased 75 yards of green fabric and 125 yards of white fabric to make
green and white curtains.
What is the largest number of curtains she can make if she
wants all the curtains to be exactly the same length, and to have no fabric left over?
How many yards of each kind of fabric would be used for each curtain?
Answer:
190
Step-by-step explanation:
if you can help with any of these please do
I want a answer nowwwww
Answer:
I believe that it would be better to use the second scale, or 1ft to 500ft.
Step-by-step explanation:
If you used the first scale(1in to 10ft) then you would have a 75in model, or 6.25ft, this would be to big to display on your desk. If you used the second then your model would be about 1.5in which all though is small it would be better for display.
Answer:
1 inch
Step-by-step explanation:
1 foot = 500 feet
1 inch = 10 feet
^ if you do 12 x 10 it equals 120, which is less than 1 foot = 500.
But, if you want it a big it would be 1 foot = 500.