15
Explanation:
If y varies inversely as x, the two variables can be represented in an equation in the form
y
=
k
x
where
k
is some constant.
We are given that
y
=
5
when
x
=
6
. We can plug this into the above equation to find what
k
is:
5
=
k
6
30
=
k
Based on this we can create our equation:
y
=
30
x
And then find
x
when
y
=
2
:
2
=
30
x
2
x
=
30
x
=
15
Decrease 117 kg in the ratio 10:13
Answer:
90kg
Step-by-step explanation:
it is so because, to decrease a number by a ratio you have to multiply with the smallest number and divide with the biggest one. For example 117 in the ratio 7:3. 117×3=351 which is divided by 7 and is equal to 50.14.
The value 117kg decreased in the ratio 10:13 will be 90kg
Ratios and proportionGiven the ratio 10:13. To reduce 117kg in this ratio, we will follow the steps:
Step 1: Multiply 117 by the smallest value
117 * 10 = 1170
Step 2: Divide the result by the largest value to have:
Value = 1170/13
Value = 90kg
Hence the value 117kg decreased in the ratio 10:13 will be 90kg
Learn more on decrement here: https://brainly.com/question/2328454
Select an equation that is equivalent to a^2-144b^2 a) (a-12b)^2 B) (a+12b)^2 C) (a-12b)(a+12b) C) a^2-24ab+144b^2
Answer:
C) (a-12b)(a+12b)
Step-by-step explanation:
a^2-144b^2 = (a-12b)(a+12b)
This is the formula that when two terms squared are written with a minus sign between them their factors are the product of the original numbers once with a plus sign and once with the minus sign.
This can be explained by multiplying them.
(a-12b)
*(a+12b)
a²- 12ab
+12ab - 144b²
a² +0 - 144b²
We see we get the same answer as applying the formula above.
Find mAB.
I need help!
Answer:
Im working on it hold tight!
Step-by-step explanation:
i need all the steps to the solution
Answer:
,,,,,, ,,,,,,,,,,,,,,,,,,
The O'Neals purchased 2 adult and
4 children's tickets to see the show
and paid $46.50. The Gerrigs paid
$62.25 on their 3 adult and 5
children's tickets. What is the cost of
an adult ticket?
20
Answer:
See in the picture
Step-by-step explanation:
I solved the valye for the ticket using linear systems, defining X and Y as the ticket value for adults and children.
I write the number seven with a bar on it. I hope you understand it (see 7.5 in the picture)
45% of Ms. Stacey's students will go on a field trip to the museum. If 90 of Ms. Stacey's students went to the museum field trip how many students does she have overall? A. 40.5 B. 50 C. 200
Answer:
c
Step-by-step explanation:
Number of students = number of students that went to the museum / percentage of students that went to the museum
90 / 0.45 = 200 students
Solve this 15 points HURRY UP
Answer:
23
Step-by-step explanation:
I think it is 23 so try this
Answer:
it's like calculating a volume in a prisim
14×6×6
504
A survey of 5,913 American adults concludes that 53% of them prefer Captain America to Ironman. Find the Margin of Error. Type your answer as a Percentage rounded to 1 decimal.
Answer:
1.3%
Step-by-step explanation:
Phat = 0.53
1 - phat = 1 - 0.53 = 0.47
Sample size, n = 5913
Assume the confidence level = 95%
Zcritical at 95% = 1.96
Margin of Error = Zcritical * √(phat(1 -phat)) / n
Margin of error :
1.96 * √((0.53 * 0.47) / 5913)
1.96 * 0.0064905
= 0.0127215
= 0.0127215 * 100%
= 1.272%
= 1.3%
A line crosses through the points (0,2) and (-10, -16). Which of the following is the slope of the line?
A. 9/5
B. 5/9
C. -9/5
D. 1/3
Answer:
A). 9/5
Step-by-step explanation:
To find the slope, plug the values of x and y into the slope formula.
y2 - y1 / x2 - x1
-16 - 2 / -10 - 0
9/5
what is the area of this figure?
Answer:
A = 147 m²Step-by-step explanation:
The area of this figure is a sum of areas of a rectangle 5 m × 21 m and a triangle with base of 21 m and hight of 4 m.
A = 5×21 + 0.5×21×4 = 105 + 42 = 147 m²
What is the value of x? Round to the nearest tenth
Answer:
x = 8
Hope this helps!
Reflect the point (3,6) across the x axis
Reflect the point (3,6) across the y axis
Answer:
(3, -6) reflected across the x axis
(-3, 6) reflected across the y axis
Step-by-step explanation:
Marty was renting a boat and wanted to get the best plan. Rental and plan A charges a fee of $50 plus $25 per hour. Plan B charges a fee of $10 plus $35 per hours. Write a system of equations that represent the situation above.
Answer:
Step-by-step explanation:
does anyone know the answer?
Answer:
E
Step-by-step explanation:
Answer:
It's E l did that before
Which pair of expressions below are equivalent?
O 3q + 7q and 10q
O 3(79) and 10q
Oq+r+rand 3qr
3q + 7q and 10q?
Answer:
iit's the 3q+ 7q =10q one
Answer:
O 3q + 7q and 10q
3q + 7q and 10q?
i need help with this
Answer:
I believe H is the answer.
Step-by-step explanation:
Double checking.
Are there any properties that hold for base - 10 logarithms that would not be valid for the logarithm base e ? Why ? Are there any properties that hold for base - 10 logarithms that would not be valid for some positive base b, such that b ≠ 1 ?
Answer:
.
nhuxu
Step-by-step explanation:
vxxgfx
Please answer correctly I will mark you Brainliest!
Answer:
5 metres
Step-by-step explanation:
Remember this!
[tex]\sf{Volume \ of \ Rectangle = Length \times Breadth \times Height}[/tex]
Hope it helps :)
Please help with math
Answer:
I think it is 3/3
Step-by-step explanation:
can someone plz plz plz help me?????
a) x+1+x+1+x+1+x+1=56 x=6.5
b) 2(6.5)+1=14cm
PLEASE HELP NO LINKS!! The temperature change in a chemistry experiment was –2C every 30 min.
The initial temperature was 6 C. What was the temperature after 4 h?
Answer:
what do you mean
Step-by-step explanation:
?
Answer:
The temperature change in a chemistry experiment was -2C every 30 min. The initial temperature was +6C. What was the temperature after 4 h
4 hours = 8 half hours
0, 1, 2, 3, 4, 5, 6, 7, 8 half hours
6, 4, 2, 0, -2, -4, -6, -8, -10
-10 degrees C
help pls 20 points
this is geometry/algebra
Answer:
cymath.com
Step-by-step explanation:
The total cost of 5 boxes of pasta is $13.00. There are 12 ounces of pasta in each box. Each box of past costs the same amount.
What is the cost, in dollars, of the minimum number of boxes needed to total 48 ounces of pasta?
Answer:
minimum =4 cost= 10.40
Step-by-step explanation:
hope this helps:))
Mrs. Logan traveled at an average speed of 55 miles per hour for 3.5 hours and then traveled at an average speed of 60 miles per hour for 2.5 hours. What was the total distance in miles that Ms. Logan traveled during this time?
Answer:
55 mph for 3.5 hours would be 192.5 miles. 60 mph for 2.5 hours would be 150 miles. The total of mile Ms. Logan went is 342.5.
Need help with this question asap please please
Answer:
M< D = 105⁰
Step-by-step explanation:
the sum of the opposite angles of a cyclic quadrilateral is 180⁰
hence, <ADC + <ABC = 180⁰
<ADC + 75⁰ = 180⁰
<ADC = 180⁰ - 75⁰
< ADC= 105⁰
jamie is in charge of covering the display box in felt including the bottom what is the total area to be covered
a.23
b.176
c.172
d.1260
Answer:
c. 172 in^2
I did this!
The surface area of the solid is 176 in².
What is surface area?Surface area is the amount of space covering the outside of a three-dimensional shape.
Given that a solid figure made by joining two cuboids, we need to find the total surface area of the solid,
So, we will find the TSA of lower and upper cuboids and then minus the base area of the upper cuboid as it is a overlapping,
Also, the formula used for TSA of a cuboid = 2(LH + WH + LW)
L = length, W = width and H = height,
So,
TSA = 2(7·3 + 3·5 + 5·7) + 2(4·3 + 3·1 + 4·1) - 1·4
= 2(21 + 15 + 35) + 2(12 + 3 + 4) - 4
= 2 × 71 + 2 × 19 - 4
= 142 + 38 - 4
= 142 + 34
= 176 in²
Hence the surface area of the solid is 176 in².
Learn more about surface area click;
https://brainly.com/question/29298005
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Jason is building a toy box for his little brother Tom. He has painted all six pieces of wood on the outside only. How much area did Jason paint if the lid has a length of 3.5 feet and a width of 3.5 feet and the toy box is 2 feet tall?
Answer:
52.5 feet
Step-by-step explanation:
3.5x2.5x2=52.5
Raymond used 36 cubes to build the first layer of a rectangular prism. The edge length of each cube was 1 inch. The finished prism had a total of 8 layers. What is the volume of Raymond's prism in cubic inches?
Answer:
[tex]Volume = 288in^3[/tex]
Step-by-step explanation:
Given
[tex]Base\ Cubes = 36[/tex]
[tex]Layers = 8[/tex]
Required
The volume of the prism
The number of base cubes represents the base area and the number of layers represents the height of the prism.
So, the volume is calculated as:
[tex]Volume = Base\ Cubes * Layers[/tex] i.e Base Area * Heights
[tex]Volume = 36 * 8[/tex]
[tex]Volume = 36in^2 * 8in[/tex]
[tex]Volume = 288in^3[/tex]
What is the measure of ∡U in the figure shown? ∘
Answer:
∠ U = 70°
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
120° is an exterior angle of the circle , then
∠ U + 50° = 120° ( subtract 50° from both sides )
∠ U = 70°
A spinner and 4 cards are shown below:
A spinner with 5 equal sectors is shown in the figure. The colors Green, Blue, Purple, Yellow, and Red are marked on it. The arrow points at the purple color. Four cards are shown on the right side. The colors Red, Yellow, Blue, and Pink are marked on them.
Jane spins the spinner and selects a card without looking. What is the probability that the spinner stops at purple and a pink card is selected?
1 over 20
1 over 5
1 over 4
9 over 20
Answer: 1 over 20
Step-by-step explanation: If the spinner has 5 parts to it at purple is one of those parts then the spinner has a 1/5 chance of it landing there.
If there are 4 cards and 1 of them are pink then there is a 1/4 chance of picking pink(if done randomly)
So if we mutiply 1/4 and 1/5, we get 1/20
That is how I arrived at my answer of 1 over 20