Answer:
Step-by-step explanation:
System of linear equations - A set of two or more linear equations in the same variables.
Ex:
y = 2x + 8
y = x + 2
These are both linear equations, with same variables (x and y)
Solution(s) of a system of linear equations- An ordered pair that is a solution of the system. The point where the lines intersect or meet.
I'm not very sure if these are the exact words your teacher or lesson used, but these words should be perfectly fine.
Hope this helps!
The solution shown for the equation is incorrect. What is the correct solution? What is the error?
(CHECK IMAGE BELOW FOR EQUATION)
What is the error?
A. The right side of the equation should be 6 after dividing each side by -4.
B. The right side of the equation should be 8 after subtracting -8 from each side.
C. The left side of the equation should be - r after dividing each side by -4.
D. The left side of the equation should be - 8+4r after distributing.
Lindsay went to the circus with her mother. She spent $3.20 on a stuffed toy, $1.95 on a cherry crushed ice, and $2.55 on a package of candy. How much did Lindsay spend in total?
$6.70
$7.20
$7.70
$8.20
Answer:
C is the answer
Step-by-step explanation:
I used calculator
write a direct variation equation that relates 16 and 2
Upvote
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1
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Add commeAnswer:
y = -4x
When x = 4, y = -16
When y = 20, x = -5
Step-by-step explanation:
First off, definitions: Direct variations refers to two variables being related with neither being the denominator of a fraction. (nothing along the lines of y = 1/x)
So, given that, I simply found what the ratio was between the two values. Something like buying gas at the gas station. The ratio between the gas you get and the money you pay is the price per gallon of gas. In this case, the proportion is -4 (-16 divided by 4).
Thus we have a relationship. For each y, you have negative four x's. Thus, y = -4x.
Finding the value of x when y = 20 simply requires plugging values in. Remember, a fundamental principle in all of Algebra is substitution. If two things are equal, they are interchangeable. So, if you saw "3 + 4" in a mathematical expression, you could simply erase it and write 7, so long as no other mathematical rules (multiplication before addition, for instance) interferes.
Thus, if y = 20, we can take our original equation and replace y with 20.
y = -4x => 20 = -4x
Then, simply solve for x, keeping in mind that when two items in math are written against each other, it means multiplication. Thus, we reverse the multiplication to division and divide both sides of the equation by -4.
20 / -4 = -5
Answer:8
Step-by-step explanation:16
Question 5
Indicate the answer choice that best completes the statement or answers the question.
What is the value of x in the triangle below?
Answer:
I thank it is D
Step-by-step explanation:
hope this helps let me know if it is not helpful
tbh i think its c or b
sorry is c or b is not right
What is the median of this data set?
{11, 6, 11, 9, 7, 2, 5}
Enter your answer in the box
Answer:
The answer is 7 hope this helps :DD
Step-by-step explanation:
Answer for: K12 5.03 Quiz: Median
ANSWER CORRECTLY FOR 25 POINTS
Frank earns 57 dollars per week working part-time at a book store. He makes one dollar more for each book that he sells. The amount, A(in dollars), that Frank earns in a week if he sells b books is given by the following.
Answer:
A = 1.00b + 57.00
Step-by-step explanation:
A = total price
57: amount earned every week
1: amount per book sold
b: number of books sold
Have an amazing day!!
PLEASE RATE!!
1. Carbon-14 has a half-life of 5,700 years. Scientists use this fact to determine the age of things made of organic material. Suppose the average page of a book containing approximately 0.5 mg of carbon-14 is put into a time capsule. How much carbon-14 will each page contain after each of the following numbers of years?
a. How many half-years is each quantity of years?
b. How much carbon-14 remains after the number of years shown to the left?
c. Challenge: see if you can create a table that uses 5700 as part of the exponent, and the actual number of years given above. Challenge function:
Answer: Since 5700 years is the "half-life" exactly 0.25 mg will remain.
Step-by-step explanation: Well, we know that half of it will change into another form in 5700 years, so if you start with .5 mg than in 5,700 years you would have half or .25 mg. 11,400 is another half life so half of .25 = .125 mg. 22,800 is two more half lives so half .125 twice.
giving brainliest please help!
Answer:
D
Step-by-step explanation:
multiply acrossed for both fractions
True or False:
1# 9 time 9 times 3 = 3 to the power of 5
2# 7 + 7 + 7 = 3 + 3 + 3 + 3 + 3 + 3 + 3
3# 1/7 times 1/7 times 1/7 = 3/7
4# 6 + 6 + 6 = 6 to the power of 3
4. The table below shows how many minutes students in Mrs. Smith's class studied for a
test. Make a box plot to show the data.
Minutes Studying
60
45
90
60
30
90
90
60
60
60
30
30
60
90
45
45
30
90
Only the first question
Answer:
well find the mos number
Step-by-step explanation:
and that is median
HELP ASAP ly!! How would I solve this??
Answer:
81/450 or 18%
Step-by-step explanation:
Since you are trying to get the probability model for the chance silver will be selected, you add up 81,117 and 252. This gets you 450denominator and since you are trying to find the probability for sliver, you put 81 in the numerator. This gets the you fraction 81/450. If you divide it, you get 0.18. Now if you are trying to make a decimal into a percent, you move the decimal point two spots to the right. So, 0.18 becomes 18%.
Help meeeeeeeeeeeeee... please dont answer it if u dont know the ans or almost the ans
Answer:a/40=60/100
Step-by-step explanation: hop this helps you
Which fraction is equivalent to fraction with numerator 4 and denominator negative 9?
fraction with numerator negative 4 and denominator negative 9
fraction with numerator 9 and denominator 4
fraction with numerator negative 9 and denominator 4
fraction with numerator negative 4 and denominator 9
Answer:
The fraction that is equivalent to fraction with numerator 4 and denominator negative 9, is fraction with numerator negative 4 and denominator 9.
Step-by-step explanation:
4/-9 does not equal -4/-9
4/-9 does not equal 9/4
4/-9 does not equal -9/4
4/-9 does equal -4/9
Answer:
Step-by-step explanation:
The fraction that is equivalent to fraction with numerator 4 and denominator negative 9, is fraction with numerator negative 4 and denominator 9.
SOMEONE HELP QUICKLY PLEASE
four different equations that have –3 as the solution?
Answer:
-4 + 1
10 - 13
-1 x 3
-9/3
Step-by-step explanation:
Answer: -4 +1 -2+-1 1-4 -5+2
Step-by-step explanation:
HURRY I HAVE 8 MINUTES LEFT!
The graph for the equation y = x minus 4 is shown below.
On a coordinate plane, a line goes through (0, negative 4) and (4, 0).
Which equation, when graphed with the given equation, will form a system that has an infinite number of solutions?
O- y - x = -4
O- y - x = -2
O- y - 4 = x
O- y + 4x = 1
Answer: A: y-x = -4
Step-by-step explanation:
To have an infinite number of solutions, two linear equations must be on top of each other, (so they intersect at every point). What this question is really asking is the equation for the plotted line!
This is simple enough:
two points are given, so lets fine the slope:
Slope = (y2-y1)/(x2-x1) = (-4 -0)/(0-4) = -4/-4 = 1
the slope is 1:
putting this into slope intercept form, we have y = x + b.
since b is the y intercept, and that is already given as -4, our completed equation is:
y = x - 4
which can be rewritten as y - x = -4
So your answer is the first option.
Yo can someone help me out
Answer:
(d ) is the answer
I am sure
Step-by-step explanation:
Hey there!
Your answer is Option D.
Reason:
Product of 2and 9 = 2(9)
Product of 4 and 7 = 4(7)
Now; their sum = 2(9) + 4(7)
Therefore, your answer is Option D.
Hope it helps...
how many repeating digits are in 0.37?
Answer:
7
Step-by-step explanation:
Answer:
None
Step-by-step explanation:
No numbers repeat in this.
hope this helps!!!
sorry if it doesn’t.
What is the area of this triangle in the coordinate plane?
Answer:
A=25
Step-by-step explanation:
Triangle area formula: A= base x height/2
Base:12-2=10
Height:9-4=5
(10x5)/2=25
So it's 25.
On the coordinate plane, plot four points that are each 3 units away from the point (P = -2, -1). Write the coordinates of each point.
Answer: (-5, -1) (-2, 2) (0, 1) (-2, -3)
Step-by-step explanation: If this helped please consider giving me brainliest!
Have a good day! :D
The required four points are (-5,-1), (1,-1), (-2,-4) and (-2, 2), which are 3 units away from the point P(-2,-1).
What is a coordinate plane?A surface with two dimensions known as the coordinate plane is created by two number lines. The x-axis is a single number line that runs horizontally. The y-axis is a vertical number line, which is the other number line.
In the given plane,
Coordinate of point P is (-2,-1)
The four points that are 3 units away from the point P(-2, -1) can be,
(-5,-1), (1,-1), (-2,-4), (-2, 2)
The points (-5,-1), (1,-1), (-2,-4), (-2, 2) are presented on the coordinate plane.
To learn more about Coordinate plane on:
https://brainly.com/question/24134413
#SPJ2
for each of the number lines, write an absolute value equation in the form |x-c|=d, where c and d are some numbers, to satisfy the given solution set.
An absolute value that can represent the solution set is: |x - 2|=4
From the number line, we have the domain of the x values to be:
x = -4 to 6
This means that the least x value is -4, and the largest is 6
The absolute value equation is given as:
|x - c|=d
Assume that d = 4.
So, we have:
|x - c|=4
Assume that c is 2.
So, we have:
|x - 2|=4
When solved, we have:
x = -2 or x = 6
-2 and 6 are within the domain of the number line.
Hence, an absolute value that can represent the solution set is: |x - 2|=4
Read more about absolute value equations at:
https://brainly.com/question/12356796
Answer:
|b+6|=2
Step-by-step explanation:
Brainliest and please do on paper so i can understand keep change flip
Answer:
1/3 divided by 4 = 0.08333333333
Step-by-step explanation:
AHHHHHH HELP MEEEEEeeeeEe
Answer:
D
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
at least means greater than or equal to
2 books each week and the end goal is 32 books
divide 32 by 2 and you get that it will take about 16 or more weeks
A cable company charges $70 per month for cable service to existing customers.
a. Find a linear equation representing the relationship between x, the number of months of service, and y, the total amount paid in dollars by an existing customer.
b.For new customers, there is an additional one-time $100 service fee. Repeat the previous problem for new customers.
c.When the two equations are graphed in the coordinate plane, how are they related to each other geometrically?
Answer:
a: y=70x
b: y=70x+100
c: They are parallel to each other, with equation b's line being 100 dollars above equation a.
Step-by-step explanation:
They both have the same slope (70), but new customers will have a y intercept of 100 because of the one-time fee.
Don't forget to like and rate!
The equation is given by y = 70x and for the new customers it is given by y = 70x + 100.
A linear equation is of the form:
y = mx + b
where y, x are variables, m is the slope of the line and b is the y intercept
Let x represent the number of months of service, and y represent the total amount
a) A cable company charges $70 per month, hence:
y = 70x
b) The is an additional one-time $100 service fee, hence:
y = 70x + 100
Hence the equation is given by y = 70x and for the new customers it is given by y = 70x + 100
Find out more at: https://brainly.com/question/4281414
ANSWER THESE QUICKLY!!!! BRAINLIEST + 50 POINTS
How much paper will be needed to cover the triangular prism shown?
A. 84 in2
B. 86 in2
C. 90 in2
D. 180 in2
How much paper will be needed to cover the triangular prism shown?
A. 86 in2
B. 96 in2
C. 102 in2
D. 210 in2
How much paper will be needed to cover the cylinder shown?
A. 113.04 in2
B. 942 in2
C. 1,055.04 in2
D. 1,168.08 in2
Answer:
a,b,d
Step-by-step explanation:
The answer is a for the second picture.
And the answer is b for the first picture.
the answer is d for third picture.
Given the function: y=x-5. Find at least 3 points that are on the graph of the function. Plot the points in the coordinate plane. Is this a linear function? Explain.
Answer:
we need to know how to solve x so maybe give a little more help please
Step-by-step explanation:
can someone solve this ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
p*15%
p*15%*6%
Step-by-step explanation:
Answer:
Part A: 0.85p
Part B: 0.901p
Step-by-step explanation:
The phone's original price: 100%
The phone's sale price: 15% off the original price
p = original price of the phone
Part A:
100% - 15% = 85%
85% = 0.85
The expression: 0.85p
Part B:
6% = 0.06
0.06 * 0.85p ==> (the sales tax * the discounted price of the phone)
0.051p
0.85p + 0.051p
0.901p
Hope this helps!
What is the volume of the sphere? (Use 3.14 for pi.)
V Sphere = 4/3 x pi x r³
d = 42 cm so r (radius) = 21 cm
then
V ≈ 4/3 x 3,14 x 21³ ≈ 38 772 cm³
Gordon types 2,220 words in 30 minutes. Find the unit rate.
Answer:
74
Step-by-step explanation:
Jamie needs some clothes for school. He will purchase 5 socks for $ 1.31 each, 3 dozen t-shirts at $ 2.34 a dozen, and a pair of jeans for $13.38 . Jamie estimates that he will spend 35.00 on clothes . is Jamie estimation reasonable ? How much will he spend exactly?
Answer:
he was a little bit off but he was close because it $26.95
Step-by-step explanation:
1. 5 x 1.31= 6.55
2. 3x2.34=7.02
3. 6.55+7.02+13.38= 26.95
jamie’s answer was reasonable
jamie spent $26.95
Complete the table for this equation. y = 4x Enter your answers by filling in the boxes. x y 1 2 3 4 5
Answer: x = 1 , y = 34
x = 2 , y = 38
x = 3 , y = 42
x = 4 , y = 46
x = 5 , y = 50
Step-by-step explanation:
Answer:
hope this helps :)
Step-by-step explanation:
Formula: y = 4x
Knowing this information, you just need to substitute numbers 1, 2, 3, 4, 5.
y = 4(1) | Answer: 4
y = 4(2) | Answer: 8
y = 4(3) | Answer: 12
y = 4(4) | Answer: 16
y = 4(5) | Answer: 20