Answer:
18
Step-by-step explanation:
tis too simple use logic u can answer that
Solve using elimination.
–9x − 9y = –18
8x + 9y = 20
Solve using elimination.
–9x − 9y = –18
8x + 9y = 20
Solve using elimination.
–9x − 9y = –18
8x + 9y = 20
Solve using elimination.
–9x − 9y = –18
8x + 9y = 20
Solve using elimination.
–9x − 9y = –18
8x + 9y = 20
There are 135 people in a sport centre. 77 people use the gym. 62 people use the swimming pool. 65 people use the track. 27 people use the gym and the pool. 23 people use the pool and the track. 31 people use the gym and the track. 4 people use all three facilities, A person is selected at random. What is the probability that this person uses at least 2 facilities?
write two equilent ratios 5 and 12
Answer:
2 equivalent ratios to 5:12 and how to find them are below.
Step-by-step explanation:
10 : 24- multiply each factor by 2 (5 x 2) + (12 x 2)
15 : 36- multiply each factor by 3 (5 x 3) + (12 x 2)
Hope this helps :3
Help me on this I’d appreciate it please show work
Answer:
Height is 60 inches.
Step-by-step explanation:
The colored triangle that stands in the center of the pyramid is a right triangle. The side of the pyramid is 64, so the bottom edge of the colored triangle is 32. That 32 inch side is a leg of the right triangle. The other length given is the hypotenuse, 68 inches. We can use Pythagorean theorem.
x^2 + 32^2 = 68^2
x^2 + 1024 = 4624
x^2 = 4624 - 1024
x^2 = 3600
square root both sides.
x = 60
There are 1200 balls in a ball pit. 35.5% of them are green. How many green balls are there?
Answer:
426
Step-by-step explanation:
35.5% of 1200 is 426
what is the value of x to the nearest tenth?
Answer:
The value of x to the nearest tenth is 10.5.
Step-by-step explanation:
What is the perimeter of a square which has the same area as a circle
with circumference of 471?
[tex]\textit{circumference of a circle}\\\\ C=2\pi r ~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=471 \end{cases}\implies 471=2\pi r\implies \cfrac{471}{2\pi }=r \\\\\\ \textit{area of a circle}\\\\ A=\pi r^2\qquad \implies A=\pi \left( \cfrac{471}{2\pi } \right)^2\implies A=\pi\cdot \cfrac{471^2}{4\pi^2} \implies A=\cfrac{471^2}{4\pi }[/tex]
[tex]\textit{area of a square}\\\\ A=s^2~~ \begin{cases} s=side\\[-0.5em] \hrulefill\\ A=\frac{471^2}{4\pi } \end{cases}\implies \cfrac{471^2}{4\pi }=s^2\implies \sqrt{\cfrac{471^2}{4\pi }}=s \implies \cfrac{471}{2\sqrt{\pi }}=s \\\\\\ \stackrel{\textit{perimeter of a square}}{4s\implies 4\left( \cfrac{471}{2\sqrt{\pi }} \right)}\implies \cfrac{942}{\sqrt{\pi }}~~ \approx~~531.47[/tex]
Mrs. Green was at the supermarket. She bought a pot roast that cost $15.50 regular price, but was on sale for 30% off. How much did she pay for the pot roast?
Answer:
$10.85
Step-by-step explanation:
30% off of 15.50 is 10.85
A rental car company charges $90 per week and $0.22 per mile or $40 per week and $0.32 per mile. How many miles per week must a customer drive to make the second option the equivalent or better choice?
Enter the answer as an integer.
(Click For List)
miles
Answer:
dist less than 500 miles
Step-by-step explanation:
let the dist be x
90+.22x > 40+.32x
50 > .1x
500 > x
Alex saved x dollars.
Ethan saved 1/3 more than that.
Write an equation for the amount of money Ethan saved. Be sure to use decimals in your
equation.
fill in the table below (image provided)
Answer:
h = s+100
and just plug in the value of s. I have done it in the figure
Can someone solve this pls
Step-by-step explanation:
I hope that this answer help you.
Bob and Latoya both drove to a baseball game at a college
stadium. Bob lives 70 miles from the stadium and Latoya lives
60 miles from it, as shown in the accompanying diagram. Bob
drove at a rate of 50 miles per hour, and Latoya drove at a rate
of 40 miles per hour. If they both left home at the same time,
who got to the stadium first?
Answer:
Bob arrived 1 minute earlier than latoya
Step-by-step explanation:
Bob's time
= 70/50 = 1.4 hours
Latoya's time
= 60/40 = 1.5 hours
If they both left home at the same time, who got to the stadium first.
3-2(x+1)+(5x-4) in simplest form
3( x - 1 )
Hope this helps.
Answer:
3(x - 3)
Step-by-step explanation:
3-2(x+1) + (5x-4)
(3 - 2x - 2) + (5x - 4) <-- you don't have to put parentheses, but it helps us see the problem better
1 - 2x + 5x - 4
3x - 3 --> 3(x - 3)
Please help me I need it
Answer:
10
Step-by-step explanation:
Plugging in the values we get : 9/3 + 7
The easy part is simplifying:
(1) 9/3 (3) +7
(2) 3+7 = 10
Answer:
D
Step-by-step explanation:
[tex]\frac{p}{3}[/tex] + q ( substitute p = 9, q = 7 into the expression )
= [tex]\frac{9}{3}[/tex] + 7
= 3 + 7
= 10 → D
Lenore lives in a state where sales tax is 10%. This means you can find the total cost of an item, including tax, by using the expression c + 0.10c, where c is the pre-tax price of the item.
Use the expression to find the total cost of an item that has a pre-tax price of $84.00.
Function is
f(c)=c+0.10cPut 84.00$
[tex]\\ \tt\hookrightarrow 84.00+0.1(84.00)[/tex]
[tex]\\ \tt\hookrightarrow 84.00+8.4[/tex]
[tex]\\ \tt\hookrightarrow 92.4[/tex]
There are 8 cups of pasta in 22 servings. Write a proportion that gives the number x of cups of pasta in 3 servings.
one proportion is:
Answer:
Step-by-step explanation:
Cups: servings
8 : 22 :: x : 3
Product of means = product of extremes
22*x = 3*8
[tex]x = \dfrac{3*8}{22}=\dfrac{3*4}{11}=\dfrac{12}{11}=1\dfrac{1}{11}[/tex]
find the equation of the line
Answer:
Y = 1/4x+2
Step-by-step explanation:
So to find the slope of the line you can use rise/run to do this you can pick two points and count how may squares is going up and how many is going to the left.
For this problem the two points can be (0,2) and (4,1) and if we count how many squares it goes up by we can see its 1 and if we count from (0,2) to (4,1) horizontally the space is 4
To find y-int it is just where the line crosses the y axis
Find the arc length of the semicircle,
Either enter an exact answer in the terms of pi or use 3.14 for pi and enter your answer as a decimal.
_____ Units
Answer:
12.56
Step-by-step explanation:
8*3.14=25.12 - circumference
25.12/2= 12.56 - arc length
PLS MARK BRAINLIEST ; )
x +y = y-m
what is m
Answer:
m = -x
Step-by-step explanation:
x +y = y-m
subtract y on both sides which will cancel them out, we are left with
x = -m
multiply both sides by -1 to get rid of the -m
x × -1 = -x, -m × -1 = m
final answer: m = -x
Let's solve
x+y=y-mx=y-y-mx=0-mx=-mm=-xDone!
who ever gets it right gets brainly
Answer:
B
Step-by-step explanation:
I did it mentally and cannot be asked to show working out. Forgive me
... all values of x.
1/2(6x - 10) -x
Answer:
x=2.5
Step-by-step explanation:
I think your equation is meant to be: 1/2(6x-10)=x.
3x-5 = x
2x = 5
x = 2.5
Principal 20,000.00 apr 3% time 5 years
Answer:
It's the total amount owed on your car loan. Knowing that the annual interest rate on the loan is 3% and that it must be repaid in a year
Step-by-step explanation:
Enter the solutions from least to greatest.
(3x -6)(-x +3)=0
Answer:
x = 2, 3.
Step-by-step explanation:
Since the equation equals 0, we can determine that:
3x-6=0
-x+3=0
Let's solve 3x-6=0.
Add 6 to both sides of the equation:
3x=6
Divide both sides by 3:
x=2
Let's solve -x+3=0.
Subtract 3 from both sides of the equation:
-x=-3
Divide by -1:
x=3
If
p
=
3
and
q
=
12
, evaluate the following expression:
4
q
−
p
p
+
q
Answer:
51
Step-by-step explanation:
4x12-3x3+12
48-9+12=51
At a restaurant, six burgers and three orders of the fries cost $19.50. What is the cost, in dollars, of two burgers and one order of fries?
Answer: $6.50
Step-by-step explanation: You have 6 burgers and 3 fries for 19.50
and need to know what 2 burgers and 1 fries is so you divide 6 by 3
3 by3 and 19.50 by three to get your answer.
hope this helps!
Based on this graph, is the relationship between number of rows and number of chairs a proportional relationship?
Answer:
Yes
Step-by-step explanation:
As the number of rows increases the number of chairs also increases according to the graph
PLEASE HELPPP
Households in a city produced a total of 125 000 tonnes of waste in 2017. The total amount of waste is expected to fall by 2% each year.
Calculate the total amount of waste these households are expected to produce in 2020.
(3 marks)
Using an exponential function, it is found that the total amount of waste these households are expected to produce in 2020 is of 117,649 tones.
What is an exponential function?A decaying exponential function is modeled by:
[tex]A(t) = A(0)(1 - r)^t[/tex]
In which:
A(0) is the initial value.r is the decay rate, as a decimal.In this problem, we have that:
The households produced a total of 125 000 tonnes of waste in 2017, hence A(0) = 125000.The total amount of waste is expected to fall by 2% each year, hence r = 0.02.Thus, the equation is:
[tex]A(t) = 125000(1 - 0.02)^t[/tex]
[tex]A(t) = 125000(0.98)^t[/tex]
2020 is 3 years after 2017, hence the amount is:
[tex]A(3) = 125000(0.98)^3 = 117649[/tex]
The total amount of waste these households are expected to produce in 2020 is of 117,649 tones.
You can learn more about exponential functions at https://brainly.com/question/25537936
-
3х - 4y = 15
7x+y= 4
Substitution
Answer:
3x-4y=15
7x+y=4
Solve7x+y=4 for y:
7x+y=4
7x+y+−7x=4+−7x (Add -7x to both sides)
y=−7x+4
Step: Substitute −7x+4 for y in 3x−4y=15:
3x−4y=15
3x−4(−7x+4)=15
31x−16=15 (Simplify both sides of the equation)
31x−16+16=15+16 (Add 16 to both sides)
31x=31
(Divide both sides by 31)
x=1
Step: Substitute 1 for x in y=−7x+4:
y=−7x+4
y=(−7)(1)+4
y=−3(Simplify both sides of the equation)
Answer: x=1 and y=−3
Triangle RST has these angle measures:
m∠R=102°
m∠S=18°
m∠T=60°
v order them least to greatest.
ST
RS
TR
Answer:
tr,sr,st
Step-by-step explanation:
wider the angle, the side opp to it will be big
so side opp to <r = st which wil be biggest
side opp to <s = tr which will be smallest
so order will be tr, sr, st
