Answer:
1. 3x+4y=30
2. 30x+40y=300
3. x+4/3y=10
Step-by-step explanation:
Jenny earns $5.50 per hour to babysit plus a flat fee of $10.50 for travel. If Jenny
earned $32.50 on Saturday, how many hours did she babysit?
Answer:
She must have earned 16 dollars
Step-by-step explanation:
PLS HELP I WILL HELP BACK 15 POINTS WILL GIVE BRAINLIEST Write the equation of a polynomial, in standard form, that has:
Zeros: 3, -2/5, 3i
leading coefficient of -5
Answer: -5x^3 -13x^2 -6x + 15ix + 39ix + 18i
Step-by-step explanation:
An equation with zeros at these numbers could be put in form x = number.
So, (x-3) could be set to 0 to get x=3.
So, you can look at these "answers" they give you and work backward to get:
(x-3)(x+2/5)(x-3i)
Multiply first two together.
x^2+2/5x-3x-6/5
simplify
x^2 - 2 3/5x -6/5
Change first term to have same denominator by multiplying by "1" in the form of -5/-5
-5x^2/-5 - 13/5x -6/5
Divide all terms by 1/5 (which is the same as multiplying each term by 5)
(-5x^2 -13x -6)
Now multiply by (x-3i)
-5x^3 -13x^2 -6x + 15ix + 39ix + 18i
What’s the surface area of 200 square inches ?
Answer:
5.77in
Step-by-step explanation:
A cube has 6 square faces, so each face would have area 200 sq in/6=33.33 sq in
Since the area of each face equals the square of the sides, the edge of the cube would be sqrt%2833.33sq+in%29= approx. 5.77 in
Please I need this
Answer:
1) not
2) QE
3) QE
4) QE
5) QE
6) QE
7) QE
8) not
9) QE
10) not
hope this helps you!
Write the number 2.1 x 10-6 in standard form.
Ordena de forma creciente los siguientes números enteros, colocando el signo de desigualdad mayor (>) o menor (<) correspondiente entre ellos a) 32 ; −2 ; −11 ; 6 ; −7 ; 20 ; −21 ; −32 ; 30 ; −16
Answer:
El orden de forma creciente de los números enteros es:
-32< -21< -16< -11< -7< -2< < 6< 20< 30< 32
Step-by-step explanation:
Ordenar de forma creciente números enteros implica ordenarlos de menor a mayor. Esto es, debes considerar primero el número que posea el menor valor y luego ir ordenándolos a medida que su valor vaya aumentando, para dejar en último lugar al que posea el mayor valor.
Para ordenarlos debes tener en cuenta que:
todo número negativo es menor que cero, mientras que todo número positivo es mayor que cero. de dos enteros negativos es mayor el que tiene menor valor absoluto. de los enteros positivos, es mayor el que tiene mayor valor absoluto.Entonces, en este caso el orden de forma creciente de los números enteros es:
-32< -21< -16< -11< -7< -2< < 6< 20< 30< 32
Explain the economic activities of the people in North America.
The people living in the north America are involved in different economic activities like animal husbandry, industries, services, farming, fishing etcc …
What is the value of b? b+4 b+38 b-19
Answer: For the first one b can be a higher or lower number
for the second one b can be a higher or lower number and the last one must be a higher number
Step-by-step explanation:
hope this helps :D
Express 4/10 as a decimal number, and identify another decimal number that is equal to it. 4/10 expressed as a decimal number is ___, which is equal to ___
Answer:
Step-by-step explanation:
Decimal number in mathematics is one in which the whole number and the fractional part is separated by a decimal point
If we divide 4 by 10 it will give us a a decimal number which was done below
4/10
=0.4
And also if we divide 40 by 100 we will still have a decimal of 0.4
0.4=40/100
Express 4/10 as a decimal number, and identify another decimal number that is equal to it. 4/10 expressed as a decimal number is 0.4 which is equal to _40/100__
What is the interval?
Does the table show a proportional relationship, if so , what is the value of y when x is 10
Yes, the given table shows a proportional relation with constant of proportionality 1/3.
What are proportional relation?Two variables x and y are in proportional relation if the relation between then is in the form y = k x, where k is the constant of proportionality.
Or we can say for all pairs ( x, y ) , y/x = k , k is constant then the table containing (x, y) values shows a proportional relationship.
From given table
When x= 5 , y =[tex]1\frac{2}{3}[/tex] =5/3
Then, y/x = (5/3)/5 = 1/3 =k
When x =6 , y =2
Then, y/x = 2/6 = 1/3 =k
When x = 7 , y = [tex]2\frac{1}{3}[/tex] = 7/3
Then, y/x = (7/3) /7 = 1/3 =k
When x=8 , y =[tex]2\frac{2}{3}[/tex] = 8/3
Then , y/x = (8/3) / 8 = 1/3 =k
Thus for each pair (x, y) given in the table the ratio y/x is same , this ratio is say k = 1/3
Therefore, for the given table y/ x = k or y =k x with k = 1/3 , and the table shows a proportional relation with constant of proportionality 1/3.
Also, Learn more about proportionality constant from the link below:
https://brainly.com/question/17793140
#SPJ2
There are 12 adults and 14 children at a picnic. What is the ratio of adults to total people at the picnic?
24 POINTS.
(U also have to explain the reasoning you used to find the value of P)
9514 1404 393
Answer:
P = 70 +4x
Step-by-step explanation:
From your previous work with the parking lot, you know its area is ...
A = 560 +32x
The width of the parking lot extension is (52 -20 -24) = 8 yards, so its area is ...
extension area = 8P
We want the extension area to be equal to the original area so that adding the extension will double the area:
extension area = A
8P = 560 +32x
P = 70 +4x . . . . . . divide by 8
Express in the form n : 1 . Give n as a decimal. 6 : 8
Step-by-step explanation:
1.n:1
6:8
2.cross multiply
3.8×n÷6×1
8n=6
4 divide both side by 6
=8n÷6=6÷6 :
=8n÷6=1.33...
therefore n=1.33...
Brainliest to right answer also based on answer 1 are the equations equivalent?
Answer:
Yes, they are equivalent, and the second question is B
Step-by-step explanation:
If you add x on both sides of equation A, then it comes up to 5x+2=6, which is equivalent to equation B. For the second question, you are just basically adding a variable to each side, so it is B.
i need help no this
Answer:
a) 0.8
b) 0.075
c) 0.04
d) 3.3125
Step-by-step explanation:
To find the decimal of a fraction, just divide.
And if it's a mixed number, first turn it into an improper fraction. For 3 5/16 multiply 3 by 16 then add the product to 5. It would be 53/16
Help me please ddddd
Answer:
ok what do you need help[on
Step-by-step explanation:
Answer:
a) Yes, 23/51 people in the neighborhood drive a van, with 23 being the highest owned number for any car type.
b) People in my neighborhood drive sports cars the least.
SUV is the second most driven car in my neighborhood.
c) The number of people that dress up for spirit week per gender in each grade.
add (4x^2-xy-y^2) and (x^2+5xy+8y^2) simplify your answer:
Answer:
To find a, b, and c, rewrite in the standard form ax2+bx+c=0ax2+bx+c=0.
a=1, b=3, c=0
Answer:
4x^2-4xy-3\frac{y^2}{2}x^2-5xy-3y^2 is 2
−3x^2 y^2 +8x^2 −18xy−6y^2
Step-by-step explanation:
If amna bought 1/3 pounds of sausages on Sunday and 2/5 of Turkey on Monday. How much more Turkey did she buy ?
Answer:
1/15
Step-by-step explanation:
1/3=5/15
2/5=6/15
6/15-5/15=1/15
PLEASE GIVE BRAINLIEST
Answer:
Amna bought 1/15 pounds of turkey more on Monday than she bought on Sunday.
Step-by-step explanation:
Turkey bought on Sunday = 1/3 pounds
Turkey bought on Monday = 2/5 pounds
2/5 - 1/3
= 6/15 - 5/15
= 1/15
Graph f(x)=-2|x+4| khan academy
Answer:
Step-by-step explanation:
Answer:
Vertex: (-4,0); points down; y-intercept: -8
Step-by-step explanation:
-x + 5 + 6x = 1 + 5x + 3
Answer:
There are no values of
x
that make the equation true.
No solution
Step-by-step explanation:
-x + 5 + 6x = 1 + 5x + 3
Group like terms
-x+6x+5=1+5x+3
Add similar elements:-x+6x=5x
5x+5=1+5x+3
Group like terms
5x+5=5x+1+3
Add the numbers 1+3=4
5x+5=5x+4
Subtract 5 from both sides
5x+5-5=5x+4-5
Simplify
5x=5x-1
Subtract 5x from both sides
5x-5x=5x-1-5x
Simplify
0=-1
The sides are not equal
No Solution
write an algebraic equation to represent the situation
3 increased by twice the number of dollars Rhonda made yesterday was 12.
A. 3d+2=12
B.2d×3=12
C.2d+3=12
D.3d×2=12
Answer:
C. 2d+3=12
Step-by-step explanation:
COULD I PLS GET HELP WILL GIVE BRAINLIEST IF POSSIBLE
Answer:1. f(x) is translated 15 units to the left 2. f(x) is vertically stretched
Step-by-step explanation:
I took this class last year
Answer:
f(x) is translated 15 units to the left 2. f(x) is vertically stretched
Step-by-step explanation:
Equation of the circle. Please help.
I need help for the slope:
Plz help meee
Answer:
slope = 3
Step-by-step explanation:
slope = 3/1
.......
......
Math is the only place where is not questionable as to why someone has 83.
Answer:
true
Step-by-step explanation:
can someone help me with this?
Answer:
Step-by-step explanation:
If you write 1 instead of y, x would be 5/8 so ratio is 1/5:8=8/5
In a game, players have 60 seconds to toss rings into boxes.
Rings that land in green boxes, g, earn 5 points
Rings that land in blue boxes, b, earn 10 points
Players must earn at least 50 points to win
Which inequality models the combination of tosses needed to win?
Answer: g*5 + b*10 ≥ 50.
Step-by-step explanation:
Let's define g = number of rings that land in green boxes.
and b = number of rings that land in blue boxes.
For each ring in the green box you earn 5 points, then if there are g rings in the green box, you have g*5 points.
And for the blue is similar, if there are b rings in the blue box, you will have b*10 points.
Then the total number of points that you will get is:
T = g*5 + b*10.
And the minimum that you need to win is 50 points, the inequality will be:
T ≥ 50
or
g*5 + b*10 ≥ 50.
write the equation of a line that has a slope of -1 and passes though (-4,9)
If solving a system of linear equations by elimination or substitution I get that 2=3, it means (check all that apply)
If the system of equations is 2 linear equations in 2 variables, there is infinity number of solutions
If the system of equations is 3 linear equations in 3 variables, there is infinity number of solutions
If the system of equations is 2 linear equations in 2 variables, the system has no solutions
If the system of equations is 3 linear equations in 3 variables, the system has no solutions
Answer:
If I get 2=3 in solving the system, it means the following:
If the system of equations is 2 linear equations in 2 variables, the system has no solutions If the system of equations is 3 linear equations in 3 variables, the system has no solutionsStep-by-step explanation:
The solution of linear system of equations implies that a point has to be found that holds true on all equations involved.
The system may consist of two equations involving two unknowns or may consist of three equation with three unknowns.
When a system of equation has no solution, the variables are removed in solving the equations and we get an equation or values in the form.
constant = constant
So,
If I get 2=3 in solving the system, it means the following:
If the system of equations is 2 linear equations in 2 variables, the system has no solutions If the system of equations is 3 linear equations in 3 variables, the system has no solutions