Answer:
([tex]\frac{31}{4} , \frac{-1}{8}[/tex])
Step-by-step explanation:
use substitution:
3x+2y=23
x=2y+8
plug in 2y+8 for x
3(2y+8)+2y=23
distribute:
6y+24+2y=23
combine like terms:
8y+24=23
solve the equation:
y=-1/8
substitute -1/8 for y:
x=2(-1/8)+8
solve the equation:
x=31/4
Without solving, identify whether this equation has a solution that is positive,negative, or zero:3x-5=-3
And please solve the equation
thanks
Answer:
I'm having problems with that too
Step-by-step explanation:
I need help with this please
Answer:
25. y=2x+1
26. $13
Step-by-step explanation:
25. 2x is the cost each day or the x, and the 1 is the initial fee, I found this because it said one day costs $3 and if I know that one days fee is $2 then I know that the y intercept or the price it starts at also known as a fee is $1. This is also backed up in the 4 day statement saying that 4 days is 9 dollars. I can do 9-1 to take away the fee and 8/2=4 so it is correct.
26. Since I already have the equation I can just plug in the vales and solve. y=2x+1, x=2 or the daily cost so 12+ (the fee) 12+1=13 so $13.
good luck, and have a great day. :)
Estimate the perimeter of the figure to the nearest whole number.
perimeter: about ___ units
Find the surface area of the prism.
Please help. You will get a noice amount of points.
Answer:
tacos = 2.50 dollars
burritos = 3.50 dollars
Step-by-step explanation:
y = burritos
x = tacos
2y + 5x = 19.50
5y + 2x = 22.50
tacos = 2.50 dollars
burritos = 3.50 dollars
HELP! I NEED THE TWO EQUATIONS AND THE COST OF ONE PACKAGE OF BROWNIES AND ONE PACKAGE OF CUPCAKES
Franco went to a bakery to buy desserts. A package of brownies costs $0.75 more than a package of cupcakes. Franco bought 2 packages of cupcakes and 4 packages of brownies for $24. Write a system of equations and solve it to find the price of one package of brownies and one package of cupcakes.
I WILL MARK BRANLIEST
Answer:
Brownie package = 4.25
cupcake package = 3.50
Explanation
4.25 x 4 + 3.50 x 2 = 24
PLZ MARK BRAINLIEST IF HELPED
Two angles are complementary. If one of the angles measures 57 degrees, how much does the other angle measure?
Please help I will be posting more questions after this one!!!!! HELP MEEEEE
Answer:
B
Step-by-step explanation:
Answer:
I think it's B.
Hope this helps!
Pls explain to me how to find the value of x.
Here are the pictures of the steps I took when solving it as well as the answer to what X is
5. Which would be a good first step to use to solve this system?
1st equation: y = 6x + 4
2nd equation: 5x + 2y = 12
A. Multiply the first equation by 2, and add the result to the second equation.
B. Substitute 5x + 12 for for y in first equation.
C. Substitute 6x + 4 for x in the second equation.
D. Substitute 6x + 4 for y in the second equation.
Answer:
d. substitute 6x +4 for y in the second equation
8. In the figure, lines a and bare parallel.
Select all the statements that are true.
b
1/2
(x-15)°/4
6/5
753
m21 = m25
mz3 = M24
m21 + m24 = 180°
m26 = 75°
m22 + m25 = 180°
All the correct statements that are true,
⇒ m ∠1 = m ∠ 5
⇒ m ∠2 + m ∠5 = 180°
⇒ m ∠6 = 75°
What is mean by Angle?An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.
Given that;
In the figure, lines a and b are parallel.
Now, By definition of alternate and corresponding angles, we get;
⇒ m ∠1 = m ∠ 5
⇒ m ∠6 = 75°
And, By definition of linear pair of parallel lines,
⇒ m ∠2 + m ∠5 = 180°
Thus, All the correct statements that are true,
⇒ m ∠1 = m ∠ 5
⇒ m ∠2 + m ∠5 = 180°
⇒ m ∠6 = 75°
Learn more about the angle visit:;
https://brainly.com/question/25716982
#SPJ7
Maria drinks 2 1/2 pints of milk a day. How much is this in cups?
Write your answer as a whole number or a mixed number in simplest form.
Answer:
5 cups
Step-by-step explanation:
Answer:
5 cups
Step-by-step explanation:
1 pint = 2 cups
2 1/2 pint = 5 cups
please help me i need to get this done quick
Answer:
It's 2
Step-by-step explanation:
I don't know what to write
this table shows a table of the amount collected for boxes sold. Choose all amounts that could be added to this table.
Answer:
$90, $135, $270
Step-by-step explanation:
For Each coin, state its worth as a percentage of $1?
Answer:5. is 500%
Step-by-step explanation:
What is the volume of the prism????????////
Answer:
6[tex](Feet)^{3}[/tex]
Step-by-step explanation:
2×2×[tex]\frac{3}{2}[/tex]
=6[tex](Feet)^{3}[/tex]
P.S. My twin sister's gonna have the same answer, her user is eternalvanimelda27
Im trying to do IXL and I dont understand the way my teacher teaches (ironic right?)
Can you please help?
the points (z,0) and (4,6) fall on a line with a slope of 6. What is the value of z?
If its not right im gonna report you
Answer:
z = 3
Step-by-step explanation:
First we want to find out how they found the slope of the line. To find the slope of the line, we use the slope formula: (y₂ - y₁) / (x₂ - x₁)
Plug in these values:
(6 - 0)/ (4 - z)
Simplify the parentheses.
= (6) / (4 - z)
Simplify the fraction.
= 6/(4 - z)
it is given that 6 is your slope. So let's add 6 to the left side of the equal sign.
6 = 6 / (4 - z)
To solve for z, we need to multiply both sides by (4 - z)
(4 - z)6 = 6
Now, divide both sides by 6 to isolate the expression of (4 - z)
4 - z = 1
Add z to both sides so it becomes positive.
4 = z + 1
Subtract 1 from both sides to isolate z.
3 = z
This is your answer.
Let's check it by plugging it back into the slope formula.
(6 - 0)/ (4 - z)
(6 - 0)/ (4 - 3)
= 6/1
= 6
Your answer is correct.
Hope this helps!
PLEASE HELP! TEN POINTS AND BRAINLIEST TO WHOEVER GETS IT RIGHT!
Which statements apply to the expression (3/5)3 ( 3/5 to the third power) check all that apply.
The base is 3/5
The base is three
The exponent is three
The expanded form is 3/5×3/5×3/5
Expanded expanded form is 3×3×3/5
3/5 to the third power equals 9/15
3/5 to the third power equals 27/125
Answer:
A,C,D and F
Step-by-step explanation:
Answer:
The base is 3/5, the exponent is three, the expanded form is 3/5 * 3/5 * 3/5, 3/5 to the third power is 27/125.
Step-by-step explanation:
I hope this helps! May I please have brainliest? :)
do you guys support animal testing? (putting drug into animals to see how it affects them)
Answer:
oh heck Nah!
Step-by-step explanation:
please help me I only have to do 5 more questions
Answer:
A
Step-by-step explanatio
Answer:
A and C
Step-by-step explanation:
5/7 x 610 = 435.7142857 or 435.7
3/2 x 610 = 915
2/3 x 610 = 406.6666667 or 406.7
5/4 x 610 = 762.5
A and C are correct because they are the only ones with an answer less than 610.
please help !! I need the new equation, the vertex, the zeros, the y-intercept, and the maximum or minimum value
Answer:
1.py. zeroes
Step-by-step explanation:
Write and solve an equation that can be used to find x, in the figure below:
Answer: x=40
Step-by-step explanation:
so you would add the two angles you already know.
30+63=93
The sum of the angles of a triangle is always 180°. Knowing this, you can do
180-93=87
so you know the third angle is 87°
plug this into the equation: 2x+7
2x+7=87
subtract both sides by 7
2x=80
divide by two
x=40
Brittany has a hoop. She wants to put tape around the edge of the hoop.
How long does the tape have to be to cover the hoop completely?
Answer: 9.42 feet
Step-by-step explanation:
circumference=diameter times pi
⬇️
c=3 * 3.14 =9.42
Answer: 9.42 feet
Step-by-step explanation: :p
A flute case is shaped like a rectangular prism. The case is 5 inches tall, 3 inches wide, and has a volume of 255 cubic inches. What is th elength of the flute case?
Answer:
The length of the case is 17 inches.
Step-by-step explanation:
A flute case is shaped like a rectangular prism with dimensions:
height = 5 inches;
width = 3 inches;
length = x inches.
The volume of the case is 255 cubic inches.
Use formula for the volume of the rectangular prism:
Thus,
The length of the case is 17 inches.
When a number is decreased by 54%, the result is 28. What is the original number to the nearest tenth?
Answer:
x=60.9
Step-by-step explanation:
Let x represent the number
x - 54%x = 28
x - 0.54x = 28
0.46x = 28
Divide both sides by 0.46
x = 28/0.46
x = 60.86
x = 60.9
is number 4 right? please explain how you do these types of problems
Answer:
No
Step-by-step explanation:
I haven't learned this but my brother says its incorrect, he is in Highschool, though he doesn't use Brainly.
y’all i need help lol photo attached with the problem
Answer:
the answers is A i think
Step-by-step explanation:
Louis wants to carpet the rectangular floor of his basement. The basement has an area of 507 square feet. The width of the basement is 1/3 its length.
What is the length of Louis's basement?
plz help i stayed all night thinking about this but still it doesn't click in my brain
Guys please help me and thank you
Answer:
c
Step-by-step explanation:
Joni earns $300 per week. If she gets a 25% raise, how much more money will she earn each week?
Answer:
$375 ($75 more dollars)
Step-by-step explanation:
25% of 300 is 75, so, 300+75 is 375.
Answer:
[tex]\huge\boxed{$75}[/tex]$75
Step-by-step explanation:
Joni currently earns $300 per week (given)
To find how much more she will earn each week, write an expression adding the original pay and the raise amount.
$300 + 25%
Find 25 as a decimal for multiplication
25% = 25/100 = 0.25
Write an expression to represent the scenario
Expression example 1:
$300 + 0.25(300)
This expression adds the original pay and the new raise together.
Expression example 2:
$300 (1.25)
This expression already takes the new pay into account by finding 125% of the original pay.
Simplify both expressions
Expression 1:
$300 + 0.25(300)
$300 + $75
$375
Expression 2:
$300 (1.25)
$375
Both expressions represent the same scenario and therefore come out to the same result. Now that we know how much Joni made after the raise, we need to find how much more money she will earn in a week with the following equation.
New amount - original amount = amount increase
Substitute known values into the equation
$375 - $300
Simplify
$75
Joni will earn $75 more each week.
Let me know if you have any questions!