The more convenient method to solve the given system of equations is by elimination.
Solving systems of linear equationFrom the question, we are to determine whether it would be more convenient to solve the system of equations by substitution or elimination
The given system of equations is
2 = 4y - 10 ----------- (1)
7x +12y = 7 ----------- (2)
In equation (1), we can see that there is no variable x in the equation. Thus we can solve for y and then substitute the value of y into equation (2).
That is,
From equation (1)
2 = 4y - 10
2 + 10 = 4y
12 = 4y
12/4 = 4y/4
3 = y
∴ y = 3
Now, we can substitute the value of y into equation (2) to determine the value of x
Hence, the more convenient method to solve the given system of equations is by elimination.
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I purchased a piece of meat from the supermarket and the instructions on the
packaging said I should cook the meat for 20 minutes for each 550grams of weight.
The meat weight written on the outside of the packaging was 0.733kg. How long will
it take to cook the meat if I follow the instructions?
The time it would take to cook the meat if I follow the instruction is 26.65 minutes.
How long would it take to cook the meat?
The first step is to determine how long it would take to cook 1 gram of meat.
20 / 550 = 0.0364 minutes
Now convert kg to gram
0.733 x 1000 - 733 grams
Multiply, the answer gotten in the first step by 733
0.0364 x 733 = 26.65 grams
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find using chain rule h(x) if h(x)= f(6x-7)
f(x)=5
f'(x)=-7
An object is traveling at a steady speed of 10 1/10 mi/h. How long will it take the object to travel 1 9/10 mi?
Answer:
30
Step-by-step explanation:
hello there
looking for help here. ill give brainliest if able to.
Answer:
5/6
Step-by-step explanation:
[tex]\frac{2}{3} +\frac{1}{6}[/tex] [tex]\frac{2}{3} = \frac{4}{6}[/tex] [tex]\frac{4}{6} + \frac{1}{6}[/tex] [tex]\frac{4+1}{6}[/tex] [tex]\frac{5}{6}[/tex]Therefore, the answer is 5/6! I hope this helped you.
AAAAAAAAAAAAAAAAAAAAAAA wdjewkhfewhjfuhegkufygqe ANSWER
Answer:
(8+t)^2-6 when t=2
Step-by-step explanation:
1: (8+2)^2-6
2: (10)^2-6
3: 100-6
4: 94
Is 4.006 greater than 1.305?
Answer:
Yes
Step-by-step explanation:
You look at the first number which is 4, it is greater than 1.
PLEASE HELP!!!!!!
WILL MARK BRAINLIEST!!!!
Answer:
1212.2323-122343.132112+1223.22342+2434+324323.000-34432
= 0.8488747544665746354244464
Step-by-step explanation:
Third-degree, with zeros of 2−i, 2+i, and 4, and a leading coefficient of −3.
Answer:
[tex]-3x^3+24x^2-63x+60[/tex]
Step-by-step explanation:
I apologize for poor handwriting.
State the degree for the polynomial:
pleaseee first person to answer it right gets brainliest!
Answer:
4
Step-by-step explanation:
the degree of the polynomial is the highest degree of any of the terms.
Which representations have the same rate of change of y with
respect to x as the equation x + 2y = 6?
Which equation represents a proportional relationship?
Answer:
I believe that B is the answer
please help ME I BEG YOU please
Find angel D
Answer:
135°
Step-by-step explanation:
angle d = (360°-90°)÷2
= 270°÷2
= 135°
1600 in expanded form
Answer:
In expanded form, the number 1600 can be shown as
1000
+ 600
+ 00
+ 0
7. Convert the subtraction problem into an addition problem.
10- (-5)
Answer:
10 + 5
Step-by-step explanation:
If you are subtracting a negative then it become adding a positive. A way to remember this is because it has matching socks.
Write an equation and solve: When a number is multiplied by 8, the product is 5. What is the number?
Answer:
Equation: 8x = 5
x = 5/8
Step-by-step explanation:
Equation:
x* 8 = 5
8x = 5
x = 5/8
-Chetan K
10. Insert three numbers between 24 and 44 to give five numbers in an arithmetic progression. Consider: a = 24 and 44 as the last term. Calculate the difference (d) to insert the three numbers.
Answer:
29,34,39
Step-by-step explanation:
t1=24
tn=t1+(n-1)d
t5=24+(5-1)d
t5=44
44-24=20
(5-1)*d=20
d=5
t5=24+5(5-1)=44
so sub it for 2,3,4
t2=24+5(2-1)=29
t3=24+5(3-1)=34
t4=24+5(4-1)=39
Classify the graph as a linear function, nonlinear function, or relation (non-
function).
A. Linear function
B. Nonlinear function
C. Relation
Answer:
The answer is C my friendThe given graph is represents a relation, Option C is correct.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
The graph is classified as a relation (non-function).
A relation is any set of ordered pairs, and a function is a special type of relation where each input (x-value) corresponds to exactly one output (y-value).
In other words, for a function, there are no repeated x-values with different y-values.
Linear Function Graph has a straight line so the graph is not linear function.
A nonlinear function is a function whose graph is not a straight line.
Its graph can be any curve other than a straight line.
Hence, the given graph is represents a relation, Option C is correct.
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If Jacob buys 6 jalapeño plants, what is the area of the garden'
Answer:
what is the area that each plant takes up exactly?
please let me know
find the value using suitable properties 1568x84-1568x84
0 zeroMark as brainlist ❤️❤️
The solution to 1568 × 184 - 1568 × 84 using suitable properties is; 156800
Distributive PropertiesWe want to solve;
1568 × 184 - 1568 × 84
Now, to solve this, we need to understand distributive property which is;
a(b + c) = ab + ac
Thus, applying distributive property to our question, we will have;
1568(184 - 84)
>> 1568(100)
>> 156800
In conclusion, the solution is 156800
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write the equation of a line parallel to the line 2x-3y=6 that passes through (-4,-1)
Answer:
2x+3y=6 is -2/3
A line passing through 0,4 does have the same slope Because they are both parallel. Which is from a slope-intercept form. This is needed in an equation of a line.
Y-y1 =m(x-1) Y-4= -2/3(x-0) 3Y-12 = -2x 3Y+2x = 12
A scuba diver descends in the water at a rate of 20 1/2 feet per minute for 2.8 minutes. He immediately changes course when he sees a large fish and ascends at a rate of 25 feet per minute for 2 minutes. What is the scuba diver's position relative to sea level after the 4.8 minutes?
Answer:
7.4 feet below sea levelStep-by-step explanation:
Assumed the starting point is the sea level 0.
After 2.8 min the diver is at position:
20 1/2 * 2.8 = 20.5 * 2.8 = 57.4 feet below sea levelThe position change after next 2 minutes:
25*2 = 50 feetThe position of the diver after 4.8 min:
57.4 - 50 = 7.4 feet below sea levelAnswer:
I tried to but they picture on but it did not work for some reason but the answer is -7.4
Step-by-step explanation:
Solve the system of equations using substitution or graphing.
y = –x2 + 4x + 5
y = x + 1
Answer:
The correct choice is option A) (-1, 0) and (4, 5).
Step-by-step explanation:
See the attached graph below.
As you can see, the two equations intersect at (-1, 0) and (4, 5).
What are the solutions to the equation x-7/x=6?
x= -7 and x = 1
x= -6 and x = -1
x = -1 and x = 7
0 x = 1 and x = 6
Answer:
i think it's x=-1 and x=7
Marta has five baseball cards. Jackson has less in number than Marta does. How many baseball cards could Jackson have ?
Answer:Jackson could have 4 or less baseball cards
Step-by-step explanation:
The logistics/operations manager of a mail order house purchases two products for resale: King Beds (K) and Queen Beds (Q). Each King Bed costs $500 and requires 100 cubic feet of storage space, and each Queen Bed costs $300 and requires 90 cubic feet of storage space. The manager has $75,000 to invest in beds this week, and her warehouse has 18,000 cubic feet available for storage. For every Queen Size Mattress purchased, they need to purchase at least twice as many King Size Mattresses. Profit for each King Bed is $300, and for each Queen Bed is $150.
18) What is the objective function?
A. Z = $150K + $300Q
B. Z = $500K + $300Q
C. Z = $300K + $150Q
D. Z = $300K + $500Q
E. Z = $100K + $90Q
19) What is the storage space constraint?
A. 200K + 100Q ? 18,000
B. 200K + 90Q ? 18,000
C. 300K + 90Q ? 18,000
D. 500K + 100Q ? 18,000
E. 100K + 90Q ? 18,000
20) Which of the following is not a feasible purchase combination?
A. 0 King Beds and 0 Queen Beds
B. 0 King Beds and 250 Queen Beds
C. 150 King Beds and 0 Queen Beds
D. 90 King Beds and 100 Queen Beds
E. 0 King Beds and 200 Queen Beds
21) For the purchase combination 0 King Beds and 200 Queen Beds, which resource is "slack" (not fully used)?
A. investment money (only)
B. storage space (only)
C. both investment money and storage space
D. neither investment money nor storage space
E. cannot be determined exactly
An ingot of metal shaped like the triangular prism below has a total mass of
25.6 kilograms. What is its density in grams per cubic centimeter.
Answer:
453
Step-by-step explanation:
9514 1404 393
Answer:
20 g/cm³
Step-by-step explanation:
The volume of the prism is the product of the area of its triangular base and its height. The triangle area is ...
A = 1/2bh
A = 1/2(16 cm)(8 cm) = 64 cm²
The height of the prism is 20 cm, so its volume is ...
V = Bh = (64 cm²)(20 cm) = 1280 cm³
The density of the ingot is the ratio of its mass to its volume.
ρ = M/V = (25,600 g)/(1280 cm³) = 20 g/cm³
The density of the ingot is 20 g/cm³.
Solve for X
Marking you the brainliest provided you got it right and with step by step explanation
Step-by-step explanation:
Value of x:
x = 180 - 140 = 40 (linear pair)Value of y:
180 - 40 + 180 - 28 = 292 (sum of supplementary angles with x and 28)Which of the following expressions are equivalent to −3.5(2 − 3n) − 2.5n?
A. −7 − 8n
B. −7 + 8n
C. −7 − 13n
D. −7 − n(10.5 − 2.5)
E. −7 + n(10.5 − 2.5)
Solve for the “x” in all the equation below. Show ALL work.
(1) - 2.x+8+ 7x = 48
(2) -15=r-6x +10
(3) - 8+ 2x - 4x + 2 = -16
Answer:
Step-by-step explanation:
(1):-2 x+7x= 48-8
<=>5 X= 40
<=>X = 8
(2),6X= 10+15+r
<=>X = (25+r):6
(3):2 x-4x= -16-2+8
<=>- 2x=-10
<=>x =5
f
(
x
)
=
−
2
x
2
+
2
x
+
4
Answer:
x=0
Step-by-step explanation:
f(x)=−2x2+2x+4
0=-4+2x+4
x=0