Answer:
z = 42
Step-by-step explanation:
The question can be answered in 2 steps as follows:
Step 1: Calculation of the constant of the variation
The equation for the joint variation can be given as follows:
z = cxy ................... (1)
Where;
z = 60
c = constant = ?
x = 5
y = 6
Substituting the values into equation (1) and solve c, we have:
60 = c * 5 * 6
60 = c * 30
c = 60 / 30
c = 2
Step 2: find z when x = 7 and y = 3
Since from Step 1 c = 2, we now use equation (1) and substitute the values into it to find z as follows:
z = 2 * 7 * 3
z = 42
what is the answer 4/1
Answer: i can revise my answer if it's not what u meant, but.... 4/1 is equivalent to 4 wholes, or just 4.
Step-by-step explanation:
Match the number or significant figure to the value or problem
Answer:
Which circumstance led the Confederacy to think that it could purchase weaponry and supplies to use in the Civil War?
A.
increased taxation on Southern states
B.
support from Britain and France
C.
an abundance of cotton in the Southern states
D.
profits from the large number of industries
Step-by-step explanation:
A 12 oz soda costs $1.25 in the vending machine. At that rate, how much would a
48 oz soda cost?
Answer:
$5
Step-by-step explanation:
48/12=4
1.25x4=5
Or you could set it up as a proportion
12/1.25=48/x
Evaluate b*2−16a+5 when a=1/2 and b=7.
Answer:
sdefrtghgg
Step-by-step explanation:
Given that a varied inversely as b, and b varies directly as the square of c, and a=1 when c=3 find the value of a when c=1/3
Please I need solvings for this thanks
Answer:
81
Step-by-step explanation:
When two variables have direct variation, as one variable increases the other variable increases or as one variable decrease, the other decrease. While for an inverse variation, as one variable increase, the other variable decrease or as one variable decrease, the other variable increase.
Given that a ∝ 1/b. Also b ∝ c².
Hence if k is the constant of proportionality, we have:
a ∝ 1 / c²
a = k / c²
When a = 1, c = 3, hence:
1 = k / 3²
k = 1 * 3²
k = 9
Therefore:
a = 9 / c²
When c = 1/3
a = 9 / (1/3)²
a = 9 / (1² / 3²)
a = 9 / (1 / 9)
a = 9 * 9
a = 81
ILL MARK BRAINLIEST
Answer:
7
Step-by-step explanation:
first,you need to create an eqaution and so since there are two bars,so its 2x-6=8
2x-6=8
+6=+6
cancel out(2x=14)
x=7
so, your answer is 7.hope this helps.
PLEASE HELP IM REALLY SICK AND CAN THINK SO HELP MEEEE
Answer:
A. y = 91.1765x - 346.5708B. 64 lbsStep-by-step explanation:
Part AUse the data in the table to get the best fit line, with equation:
y = mx + bTo do so follow the steps:
1. Let the Height be x and the Weight be y
Sum x and y
∑x = 5.3 + 5.4 + 5.3 + 6 = 22∑y = 140 + 150 + 130 + 200 = 6202. Sum x² and xy
∑x² = 5.3² + 5.4² + 5.3² + 6² = 121.34∑xy = 5.3*140 + 5.4*150 + 5.3*130 + 6*200 = 34413. Calculate m, considering n = 4 (number of data values)
m = (n∑xy -∑x∑y)/(n∑x² - (∑x)²) = (4*3441 - 22*620)/(4*121.34 - 22²) = 124/1.36 = 91.17654. Calculate b:
b = (∑y - m∑x)/n =(620 - 91.1765*22)/4 = -1385.883 /4 =-346.4708We got the best line fit formula:
y = 91.1765x - 346.5708Part BFinding y for x = 4.5:
y = 91.1765*4.5 - 346.5708 = 63.72345 ≈ 64 lbsJason surveyed 90 people on their preference of fruits or vegetables complete the two way frequency table
The values in the missing places are 26, 52, 14, 40 and 50
What is a frequency table?A table drawn up to show the distribution of the frequency of occurrence of a given characteristic according to some specified set of class intervals.
Given is a frequency table with some missing places,
For every missing places, we just need to add or subtract from the total.
Types of food Age
child adult (18+) Total
Fruit 26 26 52
Vegetable 14 24 38
Total 40 50 90
First missing place = 50-24 = 26
Second missing place = 26+26 = 52
Third missing place = 38-24 = 14
Fourth missing place = 26+14 = 40
Fifth missing place = 90-40 = 50
Hence, The values in the missing places are 26, 52, 14, 40 and 50
For more references on frequency table, click;
https://brainly.com/question/28931302
#SPJ2
Help me out!, legit answers pls.
Answer:
2
Step-by-step explanation:
A contestant in a weight loss competition wants to lose an average of at least 8 pounds
per month during a 5-month period. In the first 4 months they have lost the following
weight: 12 lbs, 9 lbs, 5 lbs, 8 lbs. How many pounds must the contestant lose in the fifth
month to meet the goal?
Answer:
In the fifth month the contestant must lose 6 pounds of weight.
Step-by-step explanation:
Given that the contestant wants to lose an average of 8 pounds of weight per month for 5 months, taking into account that in the first 4 months of the contest he lost 12, 9, 5 and 8 pounds respectively, to determine how much weight he should lose in the fifth month the following calculation must be performed:
8 x 5 = 40 (pounds to lose)
12 + 9 + 5 + 8 = 34 (pounds lost)
40 - 34 = 6
Therefore, in the fifth month the contestant must lose 6 pounds of weight.
Solve the system using addition and put the answer in orderd pair
X-5.5y=-18.5
-x+3.3y=11.9
The sum of two numbers is 16. The greater of the two numbers is one
more than four times the lesser number. Find both numbers.
Answer:
Step-by-step explanation: 2 + 2 = 4
please help I need help with this question??)):
Answer:
fourth degree monomial
Step-by-step explanation:
This is the answer by definition.
Select The correct answer.
What is the simplified form of 3/7- 5/7?
the answer is A -2/7
What point on the graph represents the unit cost at Florentino’s? What is the unit cost?
Answer: I think it 2,24
Step-by-step explanation:
thiannon is having a party. A total of 20 people are coming, How many pizzas
Will she need to buy if each person has 3 slices and the pizzas are sliced into
eighths?
Show your work and equation
Answer:
23
Step-by-step explanation:
adding with the problem
alison's stated,"The circumference of a circle is approximately six times the radius of a circle." Is Alison's statement correct? Explain your reasoning.
Write 2 7/10% as a fraction.
Step-by-step explanation:
Can you please reword your problem
Answer:
27/10
Step-by-step explanation:
x
2V2
45°
у
4V6
A) X= 4, y=
3
B) x=4V2, y=2V2
C) x = 4, y = 2V2
416
D) x=4V2, y=
3
Answer:
c
Step-by-step explanation: since i helped can i have brainlist please :D
What is the length of LM if L(3,4) and M(1,-2)? Round to the nearest tenth.
A) 7.2
B) 6.0
C) 2.8
D) 6.3
Answer:
We conclude that the length of LM if L(3,4) and M(1,-2) will be:
[tex]d = 6.3[/tex]
Hence, option D is correct.
Step-by-step explanation:
Given
L(3,4)M(1,-2)Determining the length of LM
(x₁, y₁) = (3, 4) (x₂, y₂) = (1, -2)The length of the distance between (x₁, y₁) and (x₂, y₂) can be determined using the formula
[tex]d=\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}[/tex]
substituting (x₁, y₁) = (3, 4) and (x₂, y₂) = (1, -2)
[tex]=\sqrt{\left(1-3\right)^2+\left(-2-4\right)^2}[/tex]
[tex]=\sqrt{2^2+6^2}[/tex]
[tex]=\sqrt{4+36}[/tex]
[tex]=\sqrt{40}[/tex]
[tex]=\sqrt{4\times 10}[/tex]
[tex]=\sqrt{2^2\times \:10}[/tex]
[tex]=2\sqrt{10}[/tex]
[tex]=6.3[/tex]
Therefore, we conclude that the length of LM if L(3,4) and M(1,-2) will be:
[tex]d = 6.3[/tex]
Hence, option D is correct.
PLS I need help!!!!!!
A recipe requires one quarter cup of milk as a base and then, in addition, 1 cup of milk for every 4 cups of flour. Choose a linear equation that describes the relationship.
y=4x + 4
y=4x+1/4
y=1/4x+4
y=1/4x + 1/4
answer fast
Which statement is true?
If a relationship is non-linear, it is not a function.
A graph of a curve is linear.
A graph that shows a constant rate of change is linear.
A non-linear relationship has a constant slope.
Answer:
a graph of curve is linear
Rudo is making pizzas he needs 3/4 cup of cheese to make one whole pizza. he has 3/8 cup of cheese?
Answer is below
↓↓↓↓↓
Solve the equations in Parts A and B using inverse operations. Check your solutions. In your final answer, include all of your work.
Part A:
[tex]2x^2+5=13[/tex]
Part B:
[tex]2x^{3} - 13 = 5[/tex]
Answer:
A) ±2
B) 2.08
Step-by-step explanation:
A) Given the equation
2x² + 5 = 13
Add the additive inverse of 5 to both sides
2x² + 5 + (-5) = 13 + (-5)
2x² + 5 - 5 = 13 - 5
2x² = 8
x² = 4
x= ±√4
x = ±2
Hence the value of x is ±2
b) 2x³-13 = 5
Add the additive inverse of -13 to both sides
2x³-13 + 13 = 5 +13
2x³ = 18
x³ = 18/2
x³ = 9
x = ∛9
x= 2.08
Hence the value of x is 2.08
PLEASE HELP ME ASAP I REALLY NEED HELP OR IM GONNA FLUNK
Simplify (-4x²+3x - 5) + (2x² +6x+7)
Please me!! I don't really don't understand how to do this problem
Answer:
1 is -8 2 is -9i
Step-by-step explanation:
when you combine the numbers on the left side they should equal the ones on the right side. -8+15=7 -3i-9i=-12i = 7-12i
Pleaseeee help I already have the graph.
Solve each system of equations below
a) 5x + 2y = 8
y = 3x - 7
Answer: 5x + 2y = 8 = x=-2/5y+8/5
y = 3x - 7= x= 1/3y+7/3
Step-by-step explanation:
Solve the equation using inverse operations. Check your solutions. In your final answer, include all of your work.
[tex]5 - 2x^2 = - 15[/tex]
Answer:
[tex]x=\sqrt{10}[/tex]
Step-by-step explanation:
The given equation is :
[tex]5-2x^2=-15[/tex]
We need to solve it using inverse operations.
Subtract 5 from both sides of the equation.
[tex]5-2x^2-5=-15-5\\\\-2x^2=-20\\\\2x^2=20\\\\x^2=10\\\\x=\sqrt{10}[/tex]
So, the solution of the given equation is [tex]x=\sqrt{10}[/tex].
