Answer:
True
Step-by-step explanation:
Suppose a system contains a large number of variables than equations, then there is a need to make assumptions of some values for the extra variables in order to solve the system. So, the assigning of these values can be done in several ways. Thus, the system cannot contain a unique solution.
Also, for a system of the linear equation:
[tex]AX = B[/tex] can have a unique solution if:
Augmented matrix(rank) = coefficient matrix(rank) = no. of variables.
Provided that there exist fewer equations and more variables,
Then;
coefficient matrix(rank) < no. of variables
Thus, the system cannot contain a unique solution.
A store sells an item for $35 after a 25% markup. What is the price the store paid?
Answer:
43.75
Step-by-step explanation:
25 divided by 100=.25
.25*35=8.75
8.75+35=43.75
The store paid a price of $28 for the item.
What is Mark up Percentage?Mark up percentage is the percentage of profit on a certain service or commodity.
We know the formula to calculate mark up percentage.
Mark up Percentage = [(Selling price - Cost) / cost] × 100
Here, given that,
Mark up percentage = 25%
Selling price = $35
We have to find the cost.
Let x be the price that the store paid for the item.
Substitute the given values in the formula for mark up percentage.
25 = [(35 - x) / x] × 100
Dividing both sides of the equation by 100,
25/100 = (35 - x) / x
0.25 = (35 - x) / x
Multiplying both sides with x,
0.25x = 35 - x
Adding both sides with x,
0.25x + x = 35
1.25x = 35
Dividing both sides by 1.25,
x = 35 / 1.25
x = 28
Hence the price of the item that the store paid is $28.
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someone please help me out
Answer:
x is 68 :)))
hope that helpsss
1 point
A rectangular ballroom is being carpeted. The room measures 12 feet by 11 feet. If the carpet costs $3.60 per square foot, then what is the cost of
the carpet?
Answer:
first lets find the area of the floor.
A=l*w where l=length and w=width
Plug in the data
A=14*12
A=168ft²
If 1 square foot of carpet is 2.90$, then 168 square feet are...
1 sqft 168sqft
_______ = ________
2.90$ x$
Cross multiply
1x=487.20
divide both sides by 1
x=487.20 dollars
Answer= $487.20
Step-by-step explanation:
1. (MC)
Rewrite the rational exponent as a radical
extending the properties of integer exponents. (2 points)
Based on the graph below, what is the y-intercept?
Answer:
the y intercept you are looking for is -3
A tree was 60 inches tall. Three years later it was 105 inches tall
Answer:
Im sorry but I think you have forgotten to pit your question innit
Answer:
Step-by-step explanation:
something is wrong with the question...
thanks for the points. ^_^
Find the cost price when,
(a) Selling price = Rs 725 and 15% gain
Step-by-step explanation:
Selling Price (SP) = Rs. 725
profit rate (P%) = 15 %
Now
Cost Price (CP)
[tex] = \frac{sp \: \times 100}{100 + p\%} \\ = \frac{725 \times 100}{100 + 15} \\ = \frac{72500}{115} \\ = rs \: 630.42[/tex]
Evaluate the sum of 9.1 and 368.8.
Answer:
377.9
Step-by-step explanation:
368.8 + 9.1 = 377.9
There is 1⁄3 gallon of water in a 3-gallon container. What fraction of the container is filled? (There’s also a picture :). )
Answer:
There is 1/3 gallon of water in a 3 gallon container. What fraction of the container is full? ONE-THIRD OF A GALLON DIVIDED BY 3 GALLONS EQUALS ONE-NINTH.
There is a tank with a capacity of 3 gallons, then the fraction of the container filled is 1/3.
What is a fraction?In mathematics, a fraction is represented by a specific number that designates a portion of an entire. A fraction is a piece or section of a whole, whereby a can have been any number, a particular value, or an object.
As per the given data provided in the question,
The total capacity of the container = is 3 gallons
The portion which is empty = 3-1/3 = 8/3
It means that 8/3 portion of the tank is empty and 1/3 portion of the tank is filled.
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c. What number is 40% of 1607?
Answer:
642.8
Step-by-step explanation:
1607 divided by 10 = 160.7 x 4 = 642.8
6x+4y=-6
2x+5y=9
Please help
Answer:
Step-by-step explanation:
Simplifying
6x + 4y = 6
Solving
6x + 4y = 6
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4y' to each side of the equation.
6x + 4y + -4y = 6 + -4y
Combine like terms: 4y + -4y = 0
6x + 0 = 6 + -4y
6x = 6 + -4y
Divide each side by '6'.
x = 1 + -0.6666666667y
Simplifying
x = 1 + -0.6666666667ySimplifying
6x + 4y = 6
Solving
6x + 4y = 6
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4y' to each side of the equation.
6x + 4y + -4y = 6 + -4y
Combine like terms: 4y + -4y = 0
6x + 0 = 6 + -4y
6x = 6 + -4y
Divide each side by '6'.
x = 1 + -0.6666666667
Simplifying
x = 1 + -0.6666666667
Simplifying
2x + 5y = 9
Solving
2x + 5y = 9
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-5y' to each side of the equation.
2x + 5y + -5y = 9 + -5y
Combine like terms: 5y + -5y = 0
2x + 0 = 9 + -5y
2x = 9 + -5y
Divide each side by '2'.
x = 4.5 + -2.5y
Simplifying
x = 4.5 + -2.5y
Answer:
(x,y)=(-3,3)
Step-by-step explanation:
hope you understand
........
What is the value of x?
What is the slope intercept form of the linear equation x + y = 12
Do Yr selffffffffffffffff i can't do this
Apply the distributive property to create an equivalent expression. ( 1 − 2 g + 4 h ) ⋅ 5 =
Answer:
{(1-2g) + 4h] x 5 =
Step-by-step explanation:
What is the following product? root(3, 4) * sqrt(3)
Answer:
It’s option C
Step-by-step explanation: just took the quiz on edge
Answer:
C
Step-by-step explanation:
Anna is baking cookies.The recipe ask for 3/4 cup of flour per batch.Anna wants to bake 4 batches of cookies.She made the model below to help her find the amont of flour in cups for 4 batches of cookies
Find the value of x
Não sei te responder amigo!
Answer:
8
Step-by-step explanation:
E is the midpoint of segment BC, so the segment BE would have to be 8.
Find the Area of the figure below, composed of a parallelogram and two semicircles. Round to the nearest tenths place.
Please see the picture
Help me
Test
Answer:
100.3 square units
Step-by-step explanation:
Area of the composite figure = area of parallelogram + area of circle
Note: 2 semicircles = 1 full circle
Area of the figure = a*h + πr²
Where,
a = 10
h = 5
r = ½ of 8 = 4
Plug in the value into the equation
Area = 10*5 + π*4²
Area = 50 + π*16
Area = 100.265482 ≈ 100.3 square units (nearest tenth)
What is an important requirement for an emergency fund?
Answer:
While some call having one to two months' wages in reserve ideal, most financial experts say that the recommended emergency fund amount should cover three to six months' worth of household expenses. That's a great idea, and a key part of any sound financial plan, but it also requires some effort to achieve.
1. p(x) = 5x3 - 10x2 ...
help would be greatly appreciated also you the goat
Erica knits 19 squares on Monday. Starting on Tuesday, she knits 4 squares each day.
How many squares does Erica knit by the end of the day on Friday?
Erica knits
squares by the end of the day on Friday.
Answer:
35
Step-by-step explanation:
16+ (4x4[4 days a week])
4x4=16
16+19
10+10=20
6+9=15
20+15=35
so therefore you're answer is 35
An employee was hired at a wage of $12 per hour. After a raise, she now earns $13.17 per hour.
Answer:
ok keep going more questions cause ido t get it what u trying to ask
What is the quotient of 27,036 and 9?
Answer:
the answer is 3,004 that is 27,036 ÷ 9
SOMEONE PLEASE HELP. WILL MARK BRAINIEST!!!
(9x2/3)x2/3 please help
Answer:
4
Step-by-step explanation:
=(9×2/3)×2/3
=(3×2)×2/3
=6×2/3
=2×2
=4
Please help with this pleaseee
Answer:
CED=126
Step-by-step explanation:
The total of all 3 angles should be 180
so:
180-38-16 (ABC is equal to ECD)
180-38-16=126
126=CED
Answer:
∠E= 126°
Step-by-step explanation:
the parallel lines create a transversal (the diagonal line that connects them)
this transversal rule shows us that
∠DCE=∠CBA
so ∠DCE= 38°
let's look at the triangle
∠C+∠D+∠E=180°
38+16+∠E= 180°
∠E= 126°
Help will do brainliest asked this before plz!!!!! ASAP!!!! A store manager combines trail mix that is 30% raisins with a trail mix that is 55% raisins. He makes 800 lb of trail mix that is 40% raisins. How many pounds of each mix does the manager use?
Answer:
480 and 320
I hope this helps you! I also had this question
SOMEONE Help me please
Answer:
The answer should be B. The mistake the studen made was subtracting 3/4 from 1, instead of multplying 3/4 and the 12 inside the brackets
Step-by-step explanation:
Which of the following equations have infinitely many solutions?
Choose all answers that apply:
А
-10x – 10 = –10x + 10
B
10x – 10 = -10x + 10
C
- 10x - 10 = -10r - 10
D
10x – 10 = -10x – 10
Answer:
B.
10× - 10 = - 10× + 10
but I'm not sure
plzzzzz help ASAP nowwwwwwww