Answer:
The missing value is 5.
Step-by-step explanation:
Since we already have x-value for the equation. What we need to do is to substitute the value of x in the equation.
Substitution
[tex]5x - 2y = 30[/tex]
Then we substitute x = 8 in the equation.
[tex]5(8) - 2y = 30 \\ 40 - 2y = 30 \\ 40 - 30 = 2y \\ 10 = 2y \\ \frac{10}{2} = y \\ 5 = y[/tex]
Answer Check
It is better to check the answer before jumping to the conclusion. We can check if the answer is right by substituting both terms in the equation. If the equation is true then the answer is correct. If the equation is false then one of the term is incorrect.
[tex]5x - 2y = 30[/tex]
Substitute x = 8 and y = 5 in the equation.
[tex]5(8) - 2(5) = 30 \\ 40 - 10 = 30 \\ 30 = 30[/tex]
The equation is true for (8,5)
Therefore, the missing value is 5.
I need help please!!!!!!!!!!!!!!!!!!!
Answer:
A sand dune stands 5 feet above sea level. The hill is eroding at a rate of 1 foot per 20 years. Let y represent the height of the sand dune after x years. Which equation represents the situation?
y = negative StartFraction 1 Over 20 EndFraction x minus 5
y = negative StartFraction 1 Over 20 EndFraction x + 5
y = negative 20 x minus 5
y = negative 20 x + 5
Step-by-step explanation:
please give answers asap!! correct answers only
Answer:
15 units
Step-by-step explanation:
UW is the midsegment of ΔVXY,
By midsegment theorem of a triangle,
"Segment joining the midpoints of two sides of a triangle is parallel to the third side and measure of midsegment is half of the length of the third side."
UW = [tex]\frac{1}{2}(XY)[/tex]
Since, XY = 30 units
UW = [tex]\frac{1}{2}(30)[/tex]
= 15 units
Therefore, length of the midsegment UW = 15 units will be the answer.
the sum of allmultiples of 6 between 10 & 87 is equal to
The sum of all multiples of 6 between 12 and 87 is equal to 624.
How to get the sum?
The multiples of 6 are of the form: 6*n
Where n is an integer.
The multiples between 10 and 87 are:
6*2 = 12
6*3 = 13
...
6*14 = 84
Then the sum of all these multiples can be written as:
[tex]6*2 + 6*3 + 6*4 + ... + 6*14\\\\= 6*(2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14) = 624[/tex]
The sum of all multiples of 6 between 12 and 87 is equal to 624.
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Find the value of X in the triangle shown.
Congruent Figures
A
Acellus
If AABC = ADEC,
ZB = x + 15 and ZE = 6x - 65
B
D
E
X = [?]
Enter
A company loses 345,000 in 2011
Answer:
they lose 20,000,000 in 2021 how much of a difrence is this
Step-by-step explanation:
Oceanside Bike Rental Shop charges a 15 dollar fixed fee plus 9 dollars an hour for renting a bike. Dan paid 69 dollars to rent a bike. Which equation when solved would show how many hours the bike was rentented? Let h = hours
Answer:
Step-by-step explanation:
Dan paid 69 divided by 9 = H - 15
A baker uses chocolate with 75% cocoa for his famous cake. But the supplier delivered 100 lb of chocolate with 70% cocoa. The baker needs to melt and mix the delivery with chocolate that has 90% cocoa. How much of the 90% chocolate should he use.
Answer:
33 1/3 pound of cocoa
Step-by-step explanation:
;)
GIVING BRAINLIST TO WHOEVER ANSWERS
What is the distance between points A and B?
Answer:
I think it is B
Step-by-step explanation:
Hope this helped have an amazing day/month/year!
The population of California is approximately 38,040,000. The population of Texas is about 2.606 × 107. What is the approximate total population of these two states?
Answer:
Step-by-step explanation:
California population 3.804 x10^7
texas population 2.606x 10^7
total= 6.4 x10^7
Answer:
c
Step-by-step explanation:
Find the value of each trigonometric ratio.
Answer: C
Step-by-step explanation:
u have insta
Answer:
sine = opposite / hypotenuse
sine C = 8 / 15
sine C = .53333333333333
Step-by-step explanation:
Mike drove 397 miles on 8 hours. About how many miles did she drive each hour?
Answer:
49.6
Step-by-step explanation:
just divide 397 by 8
Answer:
About 49.63 miles per hour
Step-by-step explanation:
but this is the answer
hope this helps
(2)+(-13)=
whats the answer?
Answer:
[tex] - 11[/tex]
Step-by-step explanation:
[tex]2 + ( - 13) \\ 2 - 13 = - 11[/tex]
There are 15 parking garages downtown. Each parking lot can hold 175 cars. About how many parking spaces are available at the downtown garages?
Answer:
2625
Step-by-step:
A copper wire has a mass of 9.09grams and a volume of 1.01cubic centimeters. Calculate its density.
Write your answer to the hundredths place.
Answer: The density of copper should be the same in a wire as it is in a chunk,
so the answer is 8.9 g/cm3.
Solve the system of equations.
13r - 6y = 22
2 = y + 6
Answer:
The answer is just r = -2/13
If the electrician charges $65 an hour, how much will Laura's total for the electrical work be, including
the parts and ceiling fan?
Show your work
Answer:
Given: Electrician charges= $65/ hour
Step-by-step explanation:
let the total time(total hours) he worked for Laura be 't'
if for one hour, he charges $65
then for 't' hours he will charge=$65 * t
total charges for the parts and ceiling fan=$65t
A water well drilling rig has dug to a height of -15 feet in three hours. If the rig has been running constantly and is currently at a height of -192.5 feet, for how long has the rig been running?
22.25 hours
97.4 hours
38.5 hours
12.8 hours
what is the quotient - 3/7 divided by 1/2
Answer:
Step-by-step explanation:
(-3/7)/(1/2)=
(-3/7)*(2/1)=-6/7
Answer:
The person above is correct :D The answer is -6/7 and pls give him brainliest i got it right cuz of him/she
Step-by-step explanation:
Jones is getting a new laptop. The regular price is $986. The store is offering an 18% discount. What is the cost of the laptop not including tax
How many ways are there to choose five doughnuts if there are eight varieties (and only the type of each doughnut matters)?
Answer:
There are 56 ways to choose 5 from 8 varieties.
Step-by-step explanation:
a) Choosing 5 out of 8
This is a combination problem, given by the formula below:
C(n,r)=?
C(n,r)=C(8,5)
=8!/(5!(8−5)!)
= 56
b) A combination is the number of ways to choose a sample of r elements from a set of n distinct objects where order does not matter and replacements are not allowed. The result of this combination of 5 out of 8 varieties shows that there 56 ways one can choose. The formula is given by 8 factorial divided by (5 factorial by 3 factorial).
which is true when x-3<2
Hey there!
“x – 3 < 2”
Let’s change your current question into a(n) equation to make it EASIER to solve (this is for temporary purposes ONLY)
• Temporary question
x – 3 = 2
• First: ADD BOTH SIDES by 3
x – 3 + 3 = 2 + 3
• CANCEL: –3 + 3 because that gives you 0
• KEEP: 2 + 3 because that helps solve for x
• New temporary question: 2 + 3 = x
2 + 3 = 5
The temporary question answer is: x = 5 ✅
NOW LETS SOLVE FOR YOUR ACTUAL EQUATION (just saying it REQUIRES the SAME steps as the temporary question just a TAD bit differently!)
x – 3 < 2
• FIRST: ADD both SIDES BY 3
x – 3 + 3 < 2 + 3
• CANCEL: –3 + 3 because that gives you 0
• KEEP: 2 + 3 because that helps us compare the answer with x
• New equation: x < 2 + 3
2 + 3 = 5
x < 5
Answer to your given question is: x < 5 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
angie needs to buy 156 candlesbfor a party. each package has 8 candles. how many packages should Angie buy?
20 packages
Step-by-step explanation:
Divide 156 by 8 and you get 19.5. Angie needs 156 candles, so you round 19.5 to 20.
Question 4 (20 points)
Find the mean median mode and range of : 16, 22 14, 12, 20, 19, 14, 11
16 16 145
16 14 15 11
оа
Ob
ос
Od
16 15 14 11
16 14 14 11
help me please help me ..
Answer:
26 is the correct answer.
fatma is 26 years old.her daughter is 4 years old. in how many years will fatma be doubled her daughters ago?
Answer:
my answer aint as good as the other persons but there right it would be 18 years
Step-by-step explanation:
Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and prepreview ads before the movie starts. Many complain that the time devoted to previews is too long. A preliminary sample conducted by The Wall Street Journal showed that the standard deviation of the amount of time devoted to previews was five minutes. Use that as a planning value for the standard deviation in answering the following questions.a. If we want to estimate the population mean time for previews at movie theaters with a margin of error of 78 seconds, what sample size should be used
Answer:
57
Step-by-step explanation:
Given that :
Standard deviation (σ) = 5 minutes = (5 *60) = 300 seconds
Margin of Error, E = 78
Assume a confidence interval of 95%;
Using the relation :
((Zα/2 * σ) / E)²
(1 - α)/2 = (1 - 0.95)/2 = 0.05 /2 = 0.025
Z0.025 = 1.96
Sample size = ((1.96 * 300) / 78)²
Sample size = (588 / 78)^2
Sample size = 7.5384615^2
Sample size = 56.828
= 57 samples
WILL DO ABSOLUTELY ANYTHING FOR THIS ONE HELP ASAP TIMES
Given:
The graph of a function [tex]y=h(x)[/tex].
To find:
The interval where [tex]h(x)>0[/tex].
Solution:
From the given graph graph it is clear that, the function before x=0 and after x=3.6 lies above the x-axis. So, [tex]h(x)>0[/tex] for [tex]x<0[/tex] and [tex]x>3.6[/tex].
The function between x=0 and x=3.6 lies below the x-axis. So, [tex]h(x)<0[/tex] for [tex]0<x<3.6[/tex].
Now,
For [tex]-1<x<0[/tex], the graph of h(x) is above the x-axis. So, [tex]h(x)>0[/tex].
For [tex]0<x<1[/tex], the graph of h(x) is below the x-axis. So, [tex]h(x)<0[/tex].
For [tex]1<x<2[/tex], the graph of h(x) is below the x-axis. So, [tex]h(x)<0[/tex].
Only for the interval [tex]-1<x<0[/tex], we get [tex]h(x)>0[/tex].
Therefore, the correct option is A.
Which method shows the two triangles are congruent?
A . SSS
B . SAS
C . ASA
D . AAA
Answer:
SAS
Step-by-step explanation:
It's the only answer that can satisfy with the figures
By B. SAS (side, angle, side) congruency theorem shows the two triangles are congruent
What is congruency?We know two similar planer figures are congruent when we have sides or angles or both that are the same as the corresponding sides or angles or both.
The congruency theorem should always be consecutive angles or sides to the corresponding consecutive angles or sides.
Side PR and VS are congruent also m∠R and m∠V is similar and the sides VT and QR is also congruent.
Therefore, The congruency theorem that holds this is SAS.
learn more about congruency here :
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