Answer: See explanation
Step-by-step explanation:
The information given in the question can be turned into an equation as:
2u + y = 30 ........ i
5u + y = 42 ........ ii
Subtract i from ii
3u = 12
u = 12/3 = 4
A pair of socks cost $4
Since 2u + y = 30
2(4) + y = 30
8 + y = 30
y = 30 - 8 = 22
A pair of slippers cost $22
Find the perimeter and area of this shape
[tex] \boxed{ \sf{Area \: = 57 \: {cm}^{2} }}[/tex]
[tex] \boxed{ \sf{Perimeter = 34 \: cm}}[/tex]
See workings in the attached picture !
Hope I helped ! ツ
Have a wonderful day / night ! ♡
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x and y are two non-zero real numbers such that: x²-y²=15 and x+y=3√5. then x-y=
A. √15
B. √5
C. -3√5
Answer:
[tex](x-y)=\sqrt{5}[/tex]
Step-by-step explanation:
[tex]We\ are\ given\ that:\\x^2-y^2=15\\x+y=3 \sqrt{5}\\Now,\\We\ know\ that,\\If\ x\ and\ y\ are\ two\ real\ numbers,\\Then:\\(x+y)(x-y)=x^2-y^2\\Here,\\Substituting\ (x+y)=3\sqrt{5}\ in\ the\ LHS\ and\ (x^2-y^2)=15\ in\ the\ RHS,\\(x+y)(x-y)=x^2-y^2\\3\sqrt{5} (x-y)= 15\\Hence,\\(x-y)=\frac{15}{3\sqrt{5} } \\(x-y)=\frac{5*3}{3\sqrt{5} }\\(x-y)=\frac{5}{\sqrt{5} } [Cancelling\ 3\ from\ the\ numerator\ and\ denominator]\\(x-y)=\frac{\sqrt{5}*\sqrt{5} }{\sqrt{5} }\\(x-y)=\sqrt{5}[/tex]
Find 18.5% of 500- I couldn’t seem to figure this one out for some reason I dunno
Answer:
92.5
Step-by-step explanation:
18.5
[tex] \frac{18.5}{100} \times 500 \\ \\ [/tex]
100 times 5 is 500
so 100 is cancelled and 500 becomes 5
therefore 18.5 times 5 is equal to 92.5
Answer:
92 1/2 or 92.5
Step-by-step explanation:
how to solve?
Put it into a percent proportion :D!
Percent proportion is is/of=%/100 or a/w=p/100
The a stands for "part"
and the w stands for "whole"
p stands for "percent"
Is/of=%/100 will help you figure it out if it's in a mathmatical sentence.
Since they did NOT give you what the "is" is, you put the variable "a"
a/ =
Next,
Since it said "of"
You put of underneath the unknown number "is" (a)
a/500=
Now put in the percent
a/500=18.5/100
Now cross multiply!
Then you should get 92.5!
HOPE THIS HELPS :DDD
A housing developer wants to create 45 house lots for every 10 acres of land. All the house lots will be the
same size and shape. Which of these is closest to the amount of land required to create 105 house lots?
A. 11 acres
B. 25 acres
C. 42 acres
D. 63 acres
Answer:
25 acres
Step-by-step explanation:
25 acres hope this helps
HELP ASAP!!!!! PLEASE
Answer: imma say A
Step-by-step explanation: sorry if wrong
what is the least common denominator of the rational expressions below? 1/x^2-4/3x^2+15
Answer:
3x^2(x+5)
Step-by-step explanation:
[tex]4 \frac{1}{9} + 1 \frac{1}{2} [/tex]
[tex]4 \frac{1}{2} \div \frac{3}{5} [/tex]
need help please
Step-by-step explanation:
[tex] \tt{ 1. \: \: 4 \frac{1}{9} + 1 \frac{1}{2}}[/tex]
⇢ [tex] \tt{ \frac{37}{9} + \frac{3}{2} }[/tex]
⇢ [tex] \tt{ \frac{37 \times 2 + 3 \times 9}{18} }[/tex]
⇢ [tex] \tt{ \frac{74 + 27}{18} }[/tex]
⇢ [tex] \tt{ \frac{101}{18}} [/tex]
⇢ [tex] \boxed{ \tt{5 \frac{11}{18}} }[/tex]
---------------------------------------------------------
[tex] \tt{ \: 2. \: \: 4 \frac{1}{2} \div \frac{3}{5}}[/tex]
⇢ [tex] \tt{ \frac{9}{2} \times \frac{5}{3}} [/tex]
⇢ [tex] \tt{ \frac{9 \times 5}{2 \times 3}} [/tex]
⇢ [tex] \tt{ \frac{45}{6}} [/tex]
⇢ [tex] \boxed{ \tt{7 \frac{3}{6}} }[/tex]
Hope I helped ! ♡
Have a wonderful day / night ! ツ
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Kimberly has a job to tile a room 14 x 12 ft with 1 ft square tiles. How many tiles Does he need?
please help and please explain how you got the answer, thank you!!
Answer:
327
Step-by-step explanation:
[tex]\frac{(3+9)8}{2} (2)+9(11)+8(11)+3(11)+10(11)=96+88+33+110\\ = 327[/tex]
Answer:
60
Step-by-step explanation:
So we have all four side lengths: 8, 3, 10, and 9. Since there's one diagonal side, the best way to solve this is to split the shape in two. So the area of the first shape would be 24 because 8 x 3 is 24. The other one would be different. The side length is 8, so we multiply 9 by 8 and get 72. But since it's a triangle, we have to divide that by 2. Then we get 36. If you add 36 and 24, you get 60. That would be your area.
If u had 693 cats and 593 died
Answer:
you would have 100 cats left
Please help me with this brainly
it's C because the floor area is 120 square feet and the walls are 8 feet so if you multiply 120 × 8 you get 960.
Mrs. Pints wrote the volume formula as
“V=Bh”. What does ”B“ represents
Answer B stands For Base and h stands for Height
PLS HELP ILL GIVE BRAINLIEST AND EVERYTHING ELSEE
Which model is equivalent to 4(2x +4)?
Answer:
option 4 should be the correct answer
A full glass of water can hold 1/6 of a bottle.
How many glasses of water can be filled with 3 1/2. bottles of water?
Answer:
21 glasses
Step-by-step explanation:
6 glasses in a bottle
3 x 6 = 18
3 glasses in half a bottle
18 + 3 = 21
Answer:
21 glasses
Step-by-step explanation:
let 'g' = glasses of water
create a proportion, glasses over bottles equals glasses over bottles
1 = g
1/6 7/2
cross-multiply: 1/6g = 7/2
cross-multiply: 2g = 42
g = 21
What is the perimeter of a square with a length of 19 meters?
Answer:
76 m
Step-by-step explanation:
If each side has a length of 19 m, then the perimeter is 19m*4 = 76 m
A circle has a radius of 4in what is the area of the circle?
Answer:
A≈50.27in²Step-by-step explanation:
A=πr2=π·42≈50.26548in²
I hope it's help
Answer:
50.24
Step-by-step explanation: 1
C = 4 inches
4 in x 2 = 8
8 x 3.14 = 25.12
Step-by-step explanation: 2
C = 2 x 8 = 16
16 x 3.14 = 50.24
~Hope this helps!
~Hocus Pocus
WILL GIVE BRAINLIEST IF RIGHT
The graph below shows the relationship between the number of miles traveled and the time.
Which statement about the unit rate of the graph is true?
A. The unit rate is 1.
B. The unit rate is 30.
C. The unit rate is 1/12.
D. The unit rate is 12.
Answer:
where are the graphs
Step-by-step explanation:
Question Help
Writing Ann's car can go 238 miles on 7 gallons of gas. During a drive last weekend, Ann used
8 gallons of gas. How far did she drive? Use pencil and paper. Explain how the problem changes
if you were given the distance Ann drove last weekend instead of how much gas she used.
Answer:
272
Step-by-step explanation:
do 238 divided 7 you get 34 then you multiply it by 8
Given :
Writing lan's car can go 238miles on 7 gallons of gas.
During a drive last weekend, lan used
8 gallons of gas.
To find :-
How far did he drive?
Solution :-
According to Question ,
Car can go 238 mi on 7 gallons of gas.
Using Unitary Method ,
On 1 gallon of gas it will go 238/7 mi
On 8 , it will go 238/7*8= 272miles
Hence the required answer is 272 miles.
Can anyone give me the awnser?
Answer:
Step-by-step explanation:
You want to reverse the algebra and solve for y. First you want to subtract the 'a' to both sides.
x - a = -2by^2
Divide by -1 on both sides
-x + a = 2by^2
Divide by 2b on both sides
(-x + a)/2b = y^2
Take the square root of both sides
[tex]\sqrt{(-x+a)/2b}=y[/tex]
Help me please thanks
Answer: P = 79 feet
Step-by-step explanation:
V = (l)(w)(h)
171,114 = (57)(38)(p)
171,114 = 2,166p —> multiply
79 = p —> divide both sides by 2,166
A family purchased tickets to a museum and spent a total of $38.00. The family purchased 4 tickets. There was $1.50 processing fee for each ticket
Answer:
38/1.50x4=101.33...
Step-by-step explanation:
Answer:
The answer is 8
Step-by-step explanation:
Solve −6x+6−7=2x+8 for x. How would I solve this?
Answer:
Step-by-step explanation:
−6x+6−7=2x+8
-1-8=2x+6x
8x=-9
x= -[tex]\frac{9}{8}[/tex]
Find Cos b in the triangle
Answer:
3/5
Step-by-step explanation:
SOHCAHTOA
Cos- adjacent/hypotenuse
adjacent side: 3
hypotenuse: 5
adj/hyp: 3/5
How is the solution of 2y=8 related to the solutions of 2y < 8
—
Answer:y=4 and the bottom is boundary point
Step-by-step explanation:
Answer:
y=4 and the bottom is boundary point
Step-by-step explanation:
Find the length of side BC.
Give your answer to 3 significant figures.
Answer:
BC ≈ 19.4 cm
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos71° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{AB}{BC}[/tex] = [tex]\frac{6.3}{BC}[/tex] ( multiply both sides by BC )
BC × cos71° = 6.3 ( divide both sides by cos71° )
BC = [tex]\frac{6.3}{cos71}[/tex] ≈ 19.4 cm ( to 3 significant figures )
There is a guitar that originally costs $249.99. It is on sale for 15% off. You also have to pay 6% sales tax. How much will you pay for the guitar? Please show work!!!
Answer:
225.24099
Step-by-step explanation:
249.99(0.15) = 37.4985
249.99 - 37.4985 = 212.4915
212.4915(0.06) = 12.74949
212.4915 + 12.74949 = 225.24099
The black triangles are similar. Find the value of x.
27
X
16
18
Answer:
x=24
Step-by-step explanation:
tell me if you want the steps
Answer:
x=24
Step-by-step explanation:
solve the inequality for x: -2x - 2 - 3
D) x > - 5
Answer:
Step-by-step explanation:
lets solve the inequality by adding like terms
-2x-5>0 ?
-2x>5
x>-5/2
I had 13 dollars. My mom gave me 10 dollars. My dad gave me 30 dollars. My Aunt, My Uncle, and Grandma gave me 100 dollars. I had another 7 dollars. How much did I have?
Answer:
370
13+10+30+100+100+100+7=370
Kate is going to purchase a coat for $38, pants for $45, and 2 pairs of shoes for $34 each. If she has $180 to spend, how much will she have left over after she buys everything she wants?
Answer:
151
Step-by-step explanation:
38+45+2(34)=151