If y varies directly as x and y = 8 when x = 2, then does y = 3 when x = 12
Answer:
the initial statement is
y
∝
x
to convert to an equation multiply by k the constant
of variation
⇒
y
=
k
x
to find k use the given condition
y
=
3
when
x
=
2
y
=
k
x
⇒
k
=
y
x
=
3
2
equation is
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
∣
∣
∣
2
2
y
=
3
2
x
2
2
∣
∣
∣
−−−−−−−−−−−−
when
x
=
8
then
y
=
3
2
1
×
8
4
=
3
×
4
=
12
Step-by-step explanation:
1/5 + 2/3
9/13 - 5/13
1/4 + 1/2
2/9 + 5/6
11/12 - 4/6
8/3 + 2/4
4/5 + 6/30
Answer:
1. 13/15
2. 4/13
3. 3/4
4. 1 1/18
5. 1/4
6. 3 1/6
7. 1
Step-by-step explanation:
i will use the last one as an example, first reduce, so you would find the common denominator, in this case its 6, so you simplify 6/30 to 1/5. then you have 4/5+1/5, so since u have the same denominator, you can add the two numerators above the common denominator, so it would look like 4+1/5. then add the numbers. so you are left with 5/5 which in other words is 1. i hope this helps!
answers look at the photo, hope it helps
what is
5y+3=4y+8=146
Answer: y=15
Step-by-step explanation:
Solution for (5y+3)+(4y+8)=146 equation:
Simplifying
(5y + 3) + (4y + 8) = 146
Reorder the terms:
(3 + 5y) + (4y + 8) = 146
Remove parenthesis around (3 + 5y)
3 + 5y + (4y + 8) = 146
Reorder the terms:
3 + 5y + (8 + 4y) = 146
Remove parenthesis around (8 + 4y)
3 + 5y + 8 + 4y = 146
Reorder the terms:
3 + 8 + 5y + 4y = 146
Combine like terms: 3 + 8 = 11
11 + 5y + 4y = 146
Combine like terms: 5y + 4y = 9y
11 + 9y = 146
Solving
11 + 9y = 146
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-11' to each side of the equation.
11 + -11 + 9y = 146 + -11
Combine like terms: 11 + -11 = 0
0 + 9y = 146 + -11
9y = 146 + -11
Combine like terms: 146 + -11 = 135
9y = 135
Divide each side by '9'.
y = 15
For the dilation with center (0,0) shown on the graph, your friend says the scale factor is 5/2 . What is the correct scale factor? What mistake did your friend likely make?
Correct answer i know is 2/5, what did the friend do though? here are the choices
A.
Your friend found the ratio between non-corresponding sides.
B.
Your friend found the ratio between two sides of the image triangle.
C.
Your friend found the scale factor that enlarges to triangle abc to triangle a'b'c'
D.
Your friend found the ratio between two sides of the original triangle.
Answer:
i think its b
Step-by-step explanation: if its wrong im sorry its been a while sense i did this
GIVING BRAINLIEST!!! PRETTY SIMPLE QUESTION!!!
Mei subscribed to a magazine at a rate of $24 for 12 issues. When she placed her order, Mei used a coupon that added 3 free bonus issues to her subscription. How did the coupon impact the cost per issue of Mei’s subscription?
O The coupon lowered the cost per issue by $0.40.
O The coupon lowered the cost per issue by $1.38.
O The coupon raised the cost per issue by $0.13.
O The coupon raised the cost per issue by $0.67.
Answer:
The coupon raised the cost per issue by $0.67.
Step-by-step explanation:
Jeff bought a bottle of water for $2. He also bought some hot dogs for $3 each. Jeff did not spend more than $14 on the hot dogs and the bottle of water. Which inequality can be used to find h, the number of hot dogs that Jeff could have bought? A.3h−2≤14 B.3h+2≤14 C.3h−2≥14 D.3h+2≥14
Answer:
D. 3h + 2 ≥ 14
Step-by-step explanation:
Cost of Bottle water = $2
Cost of Hot dogs = $3
Number of hot dogs bought = h
Total cost of hot dogs = price × quantity
= 3 * h
= 3h
Jeff did not spend more than $14
Total cost of bottle water and hot dogs
3h + 2 ≥14
The correct answer is D
D. 3h + 2 ≥ 14
Pleaseeeeeee help
I literally have no idea what to do
Answer:
1. x=π/6+πn, 5π/6+πn
2. x=2π/3+2πn, 4π/3+2πn, π+2πn
3. x=5π/6+πn, 5π/3+πn
4. 2+√3
5. -(√(2-√3))/2
A yellowfin tuna weighs about 380 pounds. A bluefin tuna weighs 620 about pounds. If one fish of each species were caught per day, about how many more pounds of bluefin tuna than yellowfin tuna would be caught in a week? Solve the problem two different ways.
Answer:
1680 pounds
Step-by-step explanation:
Given that :
Weight of yellow fin tuna = 380 pounds
Weight of bluefin tuna = 620 pounds
If one fish of each species were caught per day
about how many more pounds of bluefin tuna than yellowfin tuna would be caught in a week?
Total pound of bluefin tuna caught in a week:
7 * 620 = 4340
Total pound of yellow tuna caught in a week:
7 * 380 = 2660
(4340 - 2660) = 1680 pounds
the population of China is about 1.4 x 10 ^ 9 people. Julie grew up in a town with a population of about 7,000 people. How many times greater is the population of China than Julies town? Please answer this in scientific notation
Answer:
200000
Step-by-step explanation:
I believe that 200000x7000 = 1400000000 (The answer to the China population equation), therefore should be correct. Hope this helped.
please can someone smart help me,please do not answer if you dont know the answer,also answer all these questions please:).
Answer:
Number 7: 22.10 divided by 2.6 = 8.5 or 8.50 (depending on what your teacher prefers.
Step-by-step explanation:
Not sure about question 2 or 10
In the Everglades National Park in Florida, there are 200 species of birds that migrate. This accounts for !" of all the species of birds sighted in the park. A. Write an equation to find the number of species of birds that have been sighted in Everglades National Park. B. There are 600 species of plants in Everglades National Park. Are there more species of birds or plants in the park? Explain.
Answer:
A)[tex]\frac{4}{7} y = 200[/tex]
B) There are more species of plants as the number of species of birds that have been sighted in Everglades National Park is 280
Step-by-step explanation:
Total number of species of birds that migrate = 200
We are given that [tex]\frac{4}{7}[/tex] of all the species of birds are sighted in the park
a)Write an equation to find the number of species of birds that have been sighted in Everglades National Park.
Let y be the number of species of birds that have been sighted in Everglades National Park.
We are given that[tex]\frac{4}{7}[/tex] of all the species of birds are sighted in the park
So, [tex]\frac{4}{7} y = 200[/tex]
[tex]y = \frac{200 \times 7}{4}[/tex]
y=280
B)There are 600 species of plants in Everglades National Park. Are there more species of birds or plants in the park?
So, There are more species of plants as the number of species of birds that have been sighted in Everglades National Park is 280
Answer:
the one at the bottom
Step-by-step explanation:
Lines AB and CD are parallel. Find the measures of the three angles in triangle ABF.
What is the angle measurement for A, B, and F. (Make sure they are degrees)
Can you help me with this math question?
A = 42°
B= 23°
F = 115°
Step-by-step explanation:
The required measures of the three angles in triangle ABF are A = 23°, B = 42°, and F = 115°.
What are Alternate Interior Angles?Alternate Interior Angles are defined as the pair of angles created on the inner side of the parallel lines
Given that Lines AB and CD are parallel.
To determine the measures of the three angles in triangle ABF.
For finding ∠F,
∠CDF = 180° - 157° = 23°
∠F = 180° - ∠C - ∠CDF
∠F = 180° - 42° - 23°
∠F = 115°
However, if a transversal intersects two parallel lines, then each pair of alternate interior angles is equal.
So ∠A = ∠CDF = 23°
And ∠B = ∠C = 42°
Thus, the required measures of the three angles in triangle ABF are A = 23°, B = 42°, and F = 115°.
Learn more about Alternate Interior Angles here:
brainly.com/question/2125016
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Which of the following are true statements about any regular polygon? Check all that apply.
Answer:
A regular polygon has these characteristics:
3 or more sidesClosed shapeA polygon can not have one or two sides because that would be a line. It must have more than three sides, or else it is not a polygon.
A polygon is always a closed shape - it can not be an open shape or else it would not be a polygon, it would be considered an outline.
Hope this helps you!
Answer:
the picture below should help
how are unit rates and equivalent ratios realted?
Answer:
A unit rate is a special kind of ratio, where the second number, or the denominator, is equal to one. With a unit rate, you are comparing a quantity to one. Some common unit rates are miles per gallon, price per pound, and pay rate per hour. ... Next, divide the price by the pounds so you can find the unit rate.
Step-by-step explanation:
Answer:
A unit rate is a special kind of ratio, where the second number, or the denominator, is equal to one. With a unit rate, you are comparing a quantity to one. Some common unit rates are miles per gallon, price per pound, and pay rate per hour. ... Next, divide the price by the pounds so you can find the unit rate.
Step-by-step explanation:
Which behavior would be unethical
A a regular hotel receives his favorite window table even though another reserved it
B a hotel has overbooked and made alternate for some of their confirmed guest
C a hotel offers discount rates in the off season
D a hotel offers different rates to corporate guest and individuals
I HAVE 2 MIN PLEASE HELP ME PLEASE
Answer:
The answer is -91. 7 times -13 is -91.
MARK ME BRAINLIEST!!
0(1234+ 556 +780 x 4859/8393 + 83931) =
Answer:
I'm pretty sure its 0...since anything multiplied by zero is 0
first person who answer correctly gets a brainllest The perimeter of a rectangle is 64 feet. The length of the rectangle is 3 times the width of the rectangle. If w represents the width of the rectangle, the equation that represents the perimeter is 2 (3 w) + 2 w = 64. Which shows the first step that should be taken to verify that the width of the rectangle is 8?
Answer:
2(3(8))+2(8)=64
Step-by-step explanation:
Here, w represents the width of the rectangle,
∵ length of the rectangle is 3 times the width of the rectangle,
So, length = 3w,
Since, the perimeter of a rectangle, P = 2(length + width)
= 2(w + 3w)
= 2w + 2(3w)
If P = 64 feet,
⇒ 2w +2(3w) = 64
⇒ 2w + 6w = 64
⇒ 8w = 64
⇒ w = 8
Verification :
P = 2(8) + 2((3(8)) = 16 + 48 = 64 feet
Hence, the first step that should be taken to verify that the width of the rectangle is 8 is 2(3(8))+2(8)=64
Note : a solution obtain from an equation is verified by substituting the value in the equation.
Answer:
im sorry this doesn't help but its not d
Step-by-step explanatio
Which term does not represent the same data as the others?
range
output
x-value
second element
Answer: x-value
Step-by-step explanation:
the x-value is the input, domain and 1st element.
Answer:
x-value
Step-by-step explanation:
Which of the following real numbers is NOT and irrational number?
A 35
B 51
C 29
D 49
Answer:
B
Step-by-step explanation:
cause i said so
10x - 4 = 16
What does x equal to?
Answer:
x = 2
Step-by-step explanation:
First isolate the variable:
10x - 4 = 16
+4 +4
10x = 20
Then get x by itself:
10x = 20
x = 20/10
x = 10
Evaluate the function for the given value.
h(a) = 3a + 3
Find h(7).
Answer:
h(7) = 24
Step-by-step explanation:
Hi there !
h(a) = 3a + 3
replace a = 7
h(7) = 3×7 + 3
= 21 + 3
= 24
Good luck !
Please help me the picture is above I’ll mark as the brainliest, please just edit and write on the picture above and send it. Tank you. :)
Answer:
function is a parabola, with a lowest point of -4
Step-by-step explanation:
g(x)=x^-4
g(-3)= -3^2-4 = 9-4 = 5
g(-2)= -2^2-4 = 4-4 = 0
g(-1)= -1^2-4 = 1-4 = -3
g(0)= 0^2-4 = 0-4 = -4
g(1)= 1^2-4 = 1-4 = -3
g(2)= 2^2-4 = 4-4 = 0
g(3)= 3^2-4 = 9-4 = 5
i will give u brainliest
Answer:
≈ 7.35
The square root of 54 is close to 7.
7 squared = 49 and that is close to 54, but the square root of 54 is slightly larger
What is the simplified expression for 4 power 4 multiplied by 4 power 3 over 4 power 5? (1 point)
The solution to the problem is 16.
first, you must set up the equation.
[tex]4^4*\frac{4^3}{4^5}[/tex]
Then, simplify exponents.
256*[tex]\frac{64}{1024}[/tex]
Next, simplify the equation.
16
3/2 times 1/4 times 5/3
Answer:
5/8
Step-by-step explanation:
Take it step by step if you have trouble.
DM me on discord at BLAƆK PIΩK#6762 for math tutor
$15/hour
[tex]\frac{3}{2} * \frac{1}{4} =\frac{3}{8}[/tex]
[tex]\frac{3}{8} *\frac{5}{3} =\frac{15}{24}[/tex]
Question 7 (1 point)
Maria has a bank containing nickels, dimes, and quarters. In all there are 22 coins totaling $2.55. The number of dimes is 4 less than the
number of nickels and quarters combined. Find the number of nickels, dimes, and quarters in Maria's bank. Type your answer in that order
using numbers only.
x= number of nickels
y number of dimes
z = number of quarters
Blank 1:
Blank 2:
Blank 3:
Question 8 (1 point)
Suppose you invested $5000 in three different funds for one year. The funds paid simple interest of 8%, 10%, and 7% respectively. The total
interest at the end of the year was $405. You invested $500 more at 10% than 8%. How much did you invest in the 10% fund?
x= money invested in 8% fund
y-money invested in 10% fund
Answer:
answer for 8 is 1500
Step-by-step explanation:
what is the squared root of 64?
Answer:
8
Step-by-step explanation:
Answer:
the square root is 8
Step-by-step explanation:
Using the graph, determine the coordinate of the y-intercept of the parabola.
Answer:
(0,8)
Step-by-step explanation:
The parabola intercepts at 8 on the y axis, and since the interception has zero x value, x=0.
The graph the coordinate of the y-intercept of the parabola is (0, 8).
What is Intercept?The points where a line crosses an axis are known as the x-intercept and the y-intercept, respectively.
When you know the slope of the line to be investigated and the given point is also the y intercept, you can utilise the slope intercept formula, y = mx + b. (0, b). The y value of the y intercept point is denoted by the symbol b in the formula.
Given:
From the parabolic graph we can see that the intersecting point (0, 8)
Now, the y- intercept is the point in the vertical axis.
As, from the graph the coordinate of the y-intercept of the parabola is (0, 8)
Learn more about intercept here:
https://brainly.com/question/14180189
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Write each decimal as a mixed number in simplest form.
6. 3.6
7. 10.4
8. 2.11
Answer:
3 and 3/5
10 and 2/5
2 and 11/10
Step-by-step explanation: