If y varies directly with x, and y= 10 when x = 5, find y when x 15.
Answers
Answer:
30
Step-by-step explanation:
Set up the proportion y=kx k equals y over x
y=2x
y=30 if x is 15
Related Questions
What is .05866 as a fraction?
Answers
.05866 as a fraction is 2933 / 50000
Explanation: Convert to a mixed number by placing the numbers to the right of the decimal over 100000. Then reduce the fraction.
For every person who has the flu, there are 6 people who have only flu-like symptoms. If a doctor sees 40 patients, determine approximately how many patients you would expect to have only flu-like symptoms.
Answers
Answer:
Approximately 7 people.
Step-by-step explanation:
Make a proportion of x/6 and divide 40 by 6. We get 6.23333...
This is approximately 7 people.
Decrease £700 by 44.5%
Answers
Answer:
700*44.5/100 will be what we have to reduce from £700.
So we have to reduce £311.5 from £700
Which gives us £388.5
5 5
2 t-shirts and 3 hats costs £12.
5 t-shirts and 4 hats costs £23.
Find the cost of a t-shirt.
Find the cost of a hat.
Answers
Step-by-step explanation:
Suppose the cost of each t-shirt is x
and the cost of each hat is y
according to question
[tex]\Rightarrow 2x+3y=12\quad \ldots(i)\\\Rightarrow 5x+4y=23\quad \ldots(ii)\\\text{solving (i) and (ii) we get}[/tex]
[tex]x=3\ \text{and}\ y=2[/tex]
So, the cost of a t-shirt is £3
the cost of a hat is £2
answer the one in the screenshot
pls male it all correct
or i will report u
Answers
Answer:
21. yes 22. yes 23: no 24:no 25:yes
EZ
Answer to this equation 5x^2+2=7
Answers
Answer:
x=1
Step-by-step explanation:
Answer:
x= 1 and x= -1
Step-by-step explanation:
[tex]5x^{2} +2=7[/tex]
(subtract 2 from both sides)
[tex]5x^{2} =5[/tex]
(divide by 5 from both sides)
[tex]x^{2} =1[/tex]
(take the square root from both sides)
x=±√1
so,
x= 1
and
x= -1
Gaste el 60% de lo que no gasté: del resto perdí el 40% de lo que no perdí. De lo que me quedaba no ahorré 50% más de lo que ahorré. Si lo que ahorré es de S/. 70: ¿Cuánto tenia al principio?
Answers
Donna is going to swim 20 laps. She has completed 6 laps. What fraction of laps has she completed? What fraction of her swim remains?
Answers
Answer:
1.6/20
2.14/20
Step-by-step explanation:
How do you write 133/50 as a percentage?
Answers
Answer:
266%
Step-by-step explanation:
133/50 =
2 33/50 =
266 %
Hope that helps!
Answer:
lol 266%
Step-by-step explanation:
hope this helps!
Use trigonometry to work out the size of angle x. Hypotenuse= 10cm, Adjacent= 9cm
Answers
9514 1404 393
Answer:
25.8°
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you of the trig relations in a right triangle.
Cos = Adjacent/Hypotenuse
cos(x) = (9 cm)/(10 cm) = 0.9
Using the inverse cosine function, we can find the angle given its cosine.
x = arccos(0.9) ≈ 25.8°
Angle x is about 25.8°.
Question in picture
Answers
Answer:
x=21
Step-by-step explanation:
17x + 50 should equal to 19x + 8
so,
50 - 8 = 42 it means 42 shoul equal to (19x - 17x) = 2x.
so if 2x = 42 = 2x/2 = 42/2 = x = 21...
Write a verbal statement that represents the expression
h
÷
8
.
Answers
Answer:
the variable h divided by 8. The quotient of h and 8
Step-by-step explanation:
100 – x = 58
HELP ME
Answers
Answer:
Your correct answer is x = 42 .
My Step-by-step explanation:
Just turn the problem around by changing the subtraction to addition: 100 – x = 58 means the same thing as 100 – 58 = x, so x = 42.
HELP ASAP WILL GIVE 30 points. A toy box measures 4 ft by 3 ft by 2 ft. Explain whether increasing
the height by four times, from 2 ft to 8 ft, would increase the volume
by four times.
Answers
Answer:
yes, the volume would be increased by 4
Step-by-step explanation:
the volume for a box is l x w x h
lets say l = 4, w = 3, and h = 2
this would give us a volume of 24
now calculate the new volume: l x w x 4h
4 x 3 x (4 x 2) = 96 which is 4 times bigger than 24
2 x 3 x 4 = 24
8 x 3 x 4 = 96
(24 x 4 = 96)
If you think about it, you are essentially stacking four equal size boxes on top of each other, which combines is 4x the original box size.
8. Solve for x. Round to the nearest hundredth If necessary.
Answers
Answer:
11.47
Step-by-step explanation:
The cosine of an angle is equal to the ratio of the adjacent side to the hypotenuse.
Find the last side of the triangle using the Pythagorean theorem.
good luck, i hope this helps :)
What are the next four terms of the arithmetic sequence 122, 111, 100, ...?
Answers
Answer:
89, 78, 67, 56
Step-by-step explanation:
The next four terms of the arithmetic sequence is
As we can see that from the given sequence that 11 is deducted from each following number
122, 111, 100, 89, 78, 67, 56
122, (122 - 11), (111 - 11)
So the above represent the next four terms
helppppp pleaseeeee im giving 15 for this ;^;
im in dire need for multiple questions. this is 2/5
Answers
Answer:
C
Step-by-step explanation:
when it asks for the zeroes its asking for when the equation passes the x=0 and it passes x=0 at (0,-3) and (0,1) so the answer is c
hope this helps (:
Solve. (x-4)²=5
PLEASE HELP
Answers
Answer:
A
Step-by-step explanation:
(x-4)^2=5
(x-4)(x-4)=5
x(x-4)-4(x-4)=5
distribute
x^2-4x-4x+16=5
combine like terms
x^2-8x+16=5
move terms to the left and combine
x^2-8x+11=0
use the quadratic formula and simplify
x=-(-8)+/-2 to the square roots of 5 over 2
separate and solve
x=4+ square root of 5
x=4- square root of 5
ANSWER: x=4+/- square root of 5
PLS ASSAAAAPPP IMMA CRY( MAY U PLS SHOW HOW TO DO IT LIKE THE WORK)!!
Darwin's house is located on the edge of a park. He leaves his house and walks north along the edge of the park for 5 blocks. He turns and walks 12 blocks west in the park. He then walks directly back to his house in a straight line across the park. Determine the total distance of his trip. HINT: you must find the length of the hypotenuse
Answers
Answer:
here you go
Step-by-step explanation:
14 feet:___ yards _foot make sure its both yards and foot please and explain I have been suffering with this problem
Answers
Step-by-step explanation:
4.66666 yard 14 feet =4yd 2 feet
x - 12 = -48 *
pls help quick
Answers
Answer:
x = -36
Step-by-step explanation:
Add 12 to both sides
x - 12 + 12 = x
(12 cancels out)
-48 + 12 = -36
x = -36
How many solutions does the equation 3(x + 2) - 10 = 4x - 6+ xhave? A infinitely many solutions B two solutions one solution D no solution
Answers
Answer:
Step-by-step explanation:
3(x+2) -10 = 4x + 6 +x
3x +6 -10 = 5x+6
-10 = 2x
x = -5
One solution
What is the quotient of m^6 over 5 divided by 5 over m^2
Answers
Answer:
[tex]\frac{m^{6}}{5}[/tex] / [tex]\frac{5}{m^2}[/tex] = [tex]\frac{m^8}{25}[/tex]
Step-by-step explanation:
[tex]\frac{m^{6}}{5}[/tex] / [tex]\frac{5}{m^2}[/tex]
= [tex]\frac{m^{6}}{5}[/tex] * [tex]\frac{m^2}{5}[/tex]
= [tex]\frac{m^8}{25}[/tex]
What two methods are the best choices to factor this express
4x2 - 26x + 30
Factor by grouping.
Factor out the GCF.
o Use the difference of squares rule.
Use the perfect square trinomial rule.
Answers
Correct method to factor this expression are:
Factor by grouping.
Factor out the GCF.
What is factorization?A number or other mathematical object is factorised or factored in mathematics by expressing it as the product of numerous factors, often smaller or simpler things of the same sort. The four primary methods of factoring are the Grouping technique, the Difference in Two Squares, the Sum or Difference in Cubes, and the Greatest Common Factor (GCF). Numerous issues might be resolved by using the factoring of integers. Similar to this, factoring is an extremely effective method in algebra that is utilised at all levels. It offers a common approach to simplifying complex statements as well as, of course, solving quadratic equations.
The equation becomes:
= 4x² - 26x + 30
= 2 (2x² - 13x + 15)
= 2 (2x² - 10x - 3x + 15)
= 2 {2x (x - 5) - 3 (x - 5)}
= 2 (2x - 3) (x - 5)
Thus, the two methods are the best choices to factor this express are:
Factor by grouping.
Factor out the GCF.
To know more about factor refer to:
https://brainly.com/question/25829061
#SPJ1
In AEFG, the measure of ZG=90°, FG = 21 feet, and EF = 63 feet. Find the measure
of ZE to the nearest degree.
Answers
Answer:
44
Step-by-step explanation:
5.5x+15.5>32
Pls help
Answers
Answer:
x>3
Step-by-step explanation:
Answer:x<3
Step-by-step explanation:because
Which equation can be solved
Answers
Answer: Choice B) 2x-60 = 180
===========================================================
Explanation:
A bit of the question got cut off. I'm assuming the full question reads "In this diagram, the measure of angle RQS is 60 degrees less than the measure of angle PQS"
The portion underlined is the part cut off where I'm making the assumption. If that assumption is correct, then we have
angle PQS = xangle RQS = x-60Those two adjacent angles form a straight line of 180 degrees
(anglePQS) + (angleRQS) = 180
(x) + (x-60) = 180
2x-60 = 180
which points to choice B as the answer.
Answer:
Step-by-step explanation:
∠RQS = x - 60°
∠RQS = 180° - x
x - 60° = 180° - x
2x - 60° = 180°
combine these radicals -12√12-2√3
-50√3
-22√3
-26√3
-10√12
Answers
Answer:
[tex] - 26 \sqrt{3} [/tex]
I'm sure about the answer.
.Evaluate (103)^3using identity.
Answers
Answer:
1092727(103) ^3 =(100+3) ^3
=(100) ^3 +3 ^3 +3×100×3(100+3)
=1000000+27+90000+2700
=1092727
Step-by-step explanation:
Hope it is helpful....
Answer:
It would be equal to 1092727
Step-by-step explanation:
You would expand and get 103 times 103 times 103.
I didn't know what identity ur talking about
Record: 0/5 Score: 0 Penalty: 1 off
Complete: 0%
Jereme Nixon
Using Trig to Find Angles
Mar 01, 12:19:51 PM
?.
In AQRS, the measure of ZS=90°, QR = 7.7 feet, and SQ = 6.5 feet. Find the measure
of ZR to the nearest tenth of a degree.
R
7.7
Answers
Answer:
Step-by-step explanation:
57.6
