Which equation can be used in system of equations to solve for the unknown? CHECK ALL THAT APPLY
1) A=2
2) -6A+B=2
3) 3A-B+C=1
4) B=0
5) 9A-3B+C=1
Answers
Answer:
A and E
Step-by-step explanation:
edge 2021
Answer:
Option A and E are the correct answers.
Related Questions
1) Find the sum 4.5 + 5.9
Answers
Answer:
Step-by-step explanation:
Steps are below
step 1
4.5 + 5.9 equation
step 2
4.5 + 5.9 add them together by moving the points
4.5 + 5.9
10.4
Tired asl I need some help, thanks.
Answers
Answer:
C
Step-by-step explanation:
y=5-2x
3x-y=15
Substitute
3x-(5-2x)=15
Please help me slove this problem
7 = 4x - 5
Answers
Answer:
x = 3
Step-by-step explanation:
7 = 4x - 5
7 - 4x = -5
-4x = -5 - 7
-4x = -12
x = 12 ÷ 4
x = 3
Answer:
×=3
Step-by-step explanation:
7=4×-5
7-4×=5
-4×=-5-7
-4×=-12
×=12÷4
×=3
A culture started with 6,000 bacteria. After hours, it grew to 7,200 bacteria. Predict how many bacteria will be present after 19 hours. Round your answer to the nearest whole number
Answers
Answer:
that would be c i had that ques 5 mns ago
Step-by-step explanation:
Answer:
It’s 3600
Step-by-step explanation:
Eber ran 3 miles. He stopped to take a break every {3}{4) mile.How many times did Eber stop, including his final stop at the end of the run?
Answers
Answer:
4 times
Step-by-step explanation:
The total model is 3 miles, divided by 3/4 equals the multiplication problem 3/1 times 3/4 but use the reciprocal of 3/4 which is 4/3 so it would be 3/1 times 4/3 which is 12/3 which is equivalent to 4. :)
There are 4 times did Eber stop.
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Eber ran 3 miles.
And, He stopped to take a break every 3/4 mile.
Now,
Let number of times stop = x
So, We can formulate;
⇒ 3/4x = 3
⇒ x = 3 × 4 / 3
⇒ x = 12/3
⇒ x = 4
Thus, There are 4 times did Eber stop.
Learn more about the mathematical expression visit:
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HELPPPPPPP!!!!!!!!!!!!
Answers
Answer:
C
Step-by-step explanation:
As you saw in my comments, I explained it.
Thank you for letting me help!
Cheers!
- Kay :)
Which three quantities are needed in order to calculate the value of the Y-intercept for the linear
regression prediction equation?
The slope, the mean of X, and the total number of observations in the data
The slope, the mean of Y, and the total number of observations in the data
The mean of X, the mean of Y, and the total number of observations in the data
The mean of X, the mean of Y, and the slope
Answers
9514 1404 393
Answer:
(d) The mean of X, the mean of Y, and the slope
Step-by-step explanation:
A point on the linear regression curve is (mean(x), mean(y)). With that point and the slope, the equation of the line can be found. That equation will reveal the y-intercept.
y-intercept = mean(y) -slope·mean(x)
find the product of 4y²x(xy-2x²)
Answers
4y²x(xy-2x²)=4y³x²-8y²x³
Answer:
4y³x² - 8x³y²
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Exponential PropertiesStep-by-step explanation:
Step 1: Define
4y²x(xy - 2x²)
Step 2: Multiply
Distribute: 4y²x(xy) - 4y²x(2x²)Multiply: 4y³x² - 8x³y²find the midpoint of the segment with endpoints with coordinates at (-2,3) and (6,3)
Answers
-2 + 6 = 4/2 = 2
3 + 3 = 6/2 = 3
Solution: the midpoint is (2,3)
The figure is made up of a square and a rectangle. Find the area of the shaded region.
Answers
first we do
square is length 6 so base =6
10-6=4
the rectangle is 2 by 4
base=4
square is 6 by 6
rectangle is 4 by 2
split the triangles up
area of triangle=1/2base times height
rectangle triangle base=4
height=2, area=1/2 times 2 times 4=4
square triangle
flip 90 degrees clockwise so we have base=2
height=6
area=1/2 times 2 times 6=6
add
4+6=10
total area=10m^2
Noah picked 3 kilograms of cherries. Mai picked half as many cherries as Noah. How many total kilograms of cherries die Mia and Noah pick together?
Group of answer choices
Answers
Answer:
cherries picked by Noah =3kg
Mia picked = 1/2*3 = 1.5kg
Total cherries picked together = 3+1.5 = 4.5kg
Step-by-step explanation:
Answer:
4.5 or 4 1/2. Based on the given conditions, formulate: 3 + 3 / 2 Find common denominator and write the numerators. ++++=4.5
Step-by-step explanation:
CORRECT THIS ANSWER MARK A BRAIN LESS
Painter has 7/8 liters of paint remaining each statue requires 1/20 how many statues can she paint
Answers
Answer:
1/20 liters per statue
so you divide 7/8 by 1/20
7/8*20/1
17.5 statues
but there cant be decimal statues,
so 17 statues is the answer
Answer:
17 statues.
Step-by-step explanation:
7/8 / 1/20
= 7/8 * 20
= 140/8
= 17.5.
Awww please just determine the function equation, y intercept and slope.
Answers
Answer:
y = 3x + 45 is the function equation of y intercept and slope.
Four boxes of cookies cost $18 how much does one box of cookies cost
Answers
Answer:
$5.50
Step-by-step explanation:
Answer:
You would get 4.5 as your answer or 4 1/2
Step-by-step explanation:
You literally just do 18/4
And you get your answer
3(2y-3)-6=-12
i am in algebra 1.
Answers
Answer:
y = 1/2
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define
3(2y - 3) - 6 = -12
Step 2: Solve for y
Add 6 to both sides: 3(2y - 3) = -6Divide 3 on both sides: 2y - 3 = -2Add 3 to both sides: 2y = 1Divide 2 on both sides: y = 1/2Answer:
Step-by-step explanation:
here you go mate
step 1
3(2y-3)-6=-12 equation
step 2
3(2y-3)-6=-12 simplify
(3)(2y)+(3)(-3)+-6=-12
step 3
(3)(2y)+(3)(-3)+-6=-12 distribute
6y+(-9)+(-6)=-12
step 4
(6y)+(-9+-6)=-12 combine the terms
6y-15=-12
step 5
6y-15(+15)=-12(+15) add +15 to both sides
6y=3
step 6
6y/6=3/6
answer
y=1/2
find the unit rate round to the nearest hundredth calculator $170 for 14ft2
Answers
Answer:
don't expect people to help when you comment bs under their questions for points, mad weird
Jaxon is deciding between two landscaping companies for his place of business. Company A charges $45 per hour and a $150 equipment fee. Company B charges $35 per hour and a $200 equipment fee. Let
A
A represent the amount Company A would charge for
t
t hours of landscaping, and let
B
B represent the amount Company B would charge for
t
t hours of landscaping. Write an equation for each situation, in terms of
t
,
t, and determine the interval of hours,
t
,
t, for which Company A is cheaper than Company B.
Answers
Answer:
A
Step-by-step explanation:
It charges cheapeer
Solve the linear system using a table.
7a -b=-1
-4a - 2b = -2
A. (0,0)
B. (0,1)
C. (1,0)
D. (1,1)
Answers
B. (0,1)
Select all ordered pairs that satisfy the function y=4x+3.
Answers
I suppose that you should have given some pairs to choose from.
Anyway, I can tell you how to do it. Given a pair [tex](a,b)[/tex], you have to substitute [tex]a[/tex] and [tex]b[/tex] to [tex]x[/tex] and [tex]y[/tex] respectively, and see if you get something true.
For example, the pair [tex](1,7)[/tex] satisfies the function, because the substitution yields
[tex]7=4\cdot 1+3[/tex]
which is true. On the other hand, the pair [tex](19,3)[/tex] doesn't satisfy the function, because
[tex]3=4\cdot 19+3[/tex]
is clearly false.
Determine the value of x and y
Answers
where is the question , without question how can we find the Values
Question 24 of 25
What is the measure of R?
Answers
Because the two sides are equal, then the angles will be as well
Since both corresponding sides are the same on the isosceles triangle, the angles will also be the same
If I’m not mistaken
The Nice'n'Easy is selling gas for $2.14 per gallon of gas. How much will Sam have to pay for 14.5 gallons?
Answers
hope this helps! :)
Answer:
2.14 x 14.5 = $31.03
Step-by-step explanation:
Hope this helped have an amazing day!
Marshall has $0.34 in dimes and pennies. He has 7 coins altogether. How many coins of each kind does he have?
Answers
Dimes are 0.10 each
Pennies are 0.01 each
You need 4 pennies to get the 0.04
Then you would have 3 dimes .
3 x 0.10 = 0.30
4 x 0.01 = 0.04
0.30 + 0.04 = 0.34
In a study, subjects are randomly assigned to one of three groups: control, experimental A, or experimental B. After treatment, the mean scores for the three groups are compared. The appropriate statistical test for comparing these means is:
Answers
Answer:
Analysis of variance
Step-by-step explanation:
The appropriate statistical tool for this is the analysis of variance. The analysis of variance, also known as the ANOVA, is a statistical method which has the ability to separate data from observed variance into various components which is then use for more tests.
The anova gives an analysis of the differences that are in the group means of a sample.
The appropriate statistical test for comparing these means is Analysis of variance.
ANOVA stand for Analysis of variance. It is a statistical models and its associated estimation procedures are used to analyze the differences among means.
It simply provides a statistical test for two or more population to check if the means are equal or not, and therefore generalizes the t-test beyond two means.
Hence, the appropriate statistical test for comparing these means is Analysis of variance.
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In a particular triathlon the athletes cover 1/24 of the total distance by
swimming, 1/3 of it by running, and the rest by bike. What is the ratio of
the distance covered by bike to the distance covered by running?
Answers
Answer:
15/8
Step-by-step explanation:
Let "d" be the total distance, that is, the distance for swimming (s), running (r) and going by bike (b).
d = s + r + b [1]
1/24 of the total distance is covered by swimming.
s = 1/24 d [2]
1/3 of the distance is covered by running.
r = 1/3 d [3]
If we replace [2] and [3] in [1], we get
d = 1/24 d + 1/3 d + b
b = d - 1/24 d - 1/3 d
b = 24/24 d - 1/24 d - 8/24 d
b = 15/24 d = 5/8 d
The ratio of the distance covered by bike to the distance covered by running is:
b/r = (5/8 d)/(1/3 d) = 15/8
----------- are used to represent an unknown quantity in a mathematical expression.
HELP I WILL GIVE BRAINLEIST
Answers
Answer:
variables
Step-by-step explanation:
Which statements are ture about 5/6 and 7/10 ?Check all that apply
Answers
Answer:
is that all?
Step-by-step explanation:
isnt there more to the problem?
Ten percent of the items produced by a machine are defective. Suppose that twenty items are randomly chosen. Use this information to answer the following three questions. What is the probability that exactly 3 of the items are defective
Answers
Answer:
15%
Step-by-step explanation:
if 10% is to 20 then 15% is to 30
Theo borrows $8,000 for college expenses. He will pay a total of $10,280 after 6 years. What percent of interest did Theo pay?
i will give you 10 coins
Answers
9514 1404 393
Answer:
4.75%
Step-by-step explanation:
When simple interest is charged, the payback amount is ...
A = P(1 +rt) . . . . for annual rate r and a term of t years
Using the given values, we can solve for r.
10280 = 8000(1 +6r)
1.285 = 1 +6r . . . . . . . . divide by 8000
0.285 = 6r . . . . . . . . . . subtract 1
0.285/6 = r = 0.0475 = 4.75% . . . . . . divide by 6; express as %
Theo paid interest at the rate of 4.75%.
if p is directly proportional to 7 and p=12 when t =4 find the value of t when p=18
Answers
Answer:
When p=18, t=6
Step-by-step explanation:
If p and t are directly proportional, then:
p = k.t
Where k is the constant of proportionality.
We are given an initial condition: when p=12, then t=4. Substituting in the equation:
12 = k.4
Solving for k
k = 12/4 =3
The equation is:
p = 3t
Now we are required to find the value of t when p=18:
18 = 3t
Solving for t:
t = 18/3 = 6
t = 6
Thus, when p=18, t=6