Answer:
$250
Step-by-step explanation:
I just looked up the question and saw the exact same one so.
2x+3y=13
4x-y=-2
Thanks
Answer:
2x+3y=13 ------(1)
4x-y=-2 -----(2)
Multiply (1) by 2,
=> 4x + 6y = 26. ---(3)
Subtract (2) from (3),
4x - 4x + 6y + y= 26 + 2
7y = 28
y = 4
x = (13-3(4))/2
x = 1/2.
HOPE IT HELPS!!!
hi someone pls help me!
Step-by-step explanation:
let y = f(x)
82 = x^2 + 1
81 = x^2
x = ±9
y = (3)^2 + 1
y = 10
26 = x^2 + 1
25 = x^2
x = ±5
Topic: Functions + Graphs
If you like to venture further, feel free to check out my insta (learntionary). It would be best if you could give it a follow. I'll be constantly posting math tips and notes! Thanks!
can someone please help me with the 2 questions below. (they go together)
Answer:
r=√(A/π)
r=2.8
Step-by-step explanation:
We want to get (r) alone on one side
A=πr^2
divide each side by π
A/π=r^2
square root each side
√(A/π)=r
r=√(A/π) is the answer to your first question.
now we are given A
r=√((25)/3.14)
put the left side into a calculator
r=2.8216632
round to nearest tenth of a centimeter
r=2.8
HURRRYYY!!!
Which relation is a function?
Answer:
so its d so circle d ok
d is the answer
Sam cleaned 1/3 of his house in 50 minutes. How many hours will it take him to clean his entire house?
please give me the correct answer and full explanation
This is equivalent to equivalent to 2 hours, 30 minutes.
======================================================
Work Shown:
1/3 of the house = 50 minutes
3*(1/3 of the house) = 3*(50 minutes)
3/3 of the house = 150 minutes
1 house = 150 minutes
-----------
Sam will need 150 minutes to clean the whole house
Divide this over 60 to convert to hours
150 minutes = (150/60) hours
150 minutes = 2.5 hours which is the final answer
-----------
Or you could say the following
150 minutes = 120 min + 30 min
150 minutes = (120/60) hr + 30 min
150 minutes = 2 hr + 30 min
This shows that 2.5 hours is equivalent to 2 hours, 30 minutes.
Jalen is making a circular pizza with a circumference of 44 inches. What is the approximate radius of Jalens pizza?
A. 22 inches
B. 28 inches
C. 7 inches
D. 14 inches
Answer:
A
Step-by-step explanation:
Just divide 44 by 2 and it would give u the answer, Hope this helps :)
Answer:
A
Step-by-step explanation:
hope its correct :)
i need help a s a p !!!!!!
Answer:
72.8
Step-by-step explanation:
Do pythagereams theorem a squared plus b squared equals c squared
Using the trend line y = 9x + 2, complete the residual table for the data shown.
pls complete it (picture)
Answer:
Step-by-step explanation:
the 7cm and the 3cm is 21 cm^2 the 4cm and the 5cm is 20cm^2
the 11cm and the 2cm is 22cm^2
basically if your looking for the largest area then the 11cm and the 2 cm is your answer.
336.752-31 =
And you have to show solving step.And round it to the nearest ten
Answer:
The answer is 10.9
Step-by-step explanation:
hope this helps
336.752÷31= 10.86296774
And round it to the nearest ten which is 10.9
Write the ratio 2/3.5
in simplest form.
Answer:
The given ratio, in simplest form, is 4/7.
Step-by-step explanation:
Rewrite 2/3.5 as 4/7 by multiplying both the 2 and the 3.5 by 2. This eliminates the decimal fraction.
The given ratio, in simplest form, is 4/7.
The given 2/3.5 in simplest ratio form is 4 : 7.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
Given, A ratio 2/3.5 this can be written as 2 : 3.5 as we know a/b can be written as a : b.
Now, Multiplying 10 to remove the fraction,
2×10 : 3.5×10.
20 : 35.
4 : 7.
learn more about proportion here :
https://brainly.com/question/7096655
#SPJ2
it takes 10 pounds of potatoes to make 15 pounds of mashed potatoes. at this rate, how many pounds of mashed potatoes can they make with 15 pounds of potatoes.
Answer:
17.5
Step-by-step explanation:
10 potatoes = 15 mashed
15 potatoes = 17.5 mashed
Answer:
Step-by-step explanation:
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Your school is donating items to the local food pantry. Your homeroom is
having a competition to see who will donate the most items. You have
already donated 14 items and plan to donate 3 more each week. Your
friend has already collected 8 items and plans to collect 5 more items
each week. How many weeks will it take for both of you to have collected
the same amount? How much will each of you have collected at that
time? *
Answer:
It will take 3 weeks for both of us to have collected the same amount. Each of us will have collected 23 items at that time.
Step-by-step explanation:
Let x=weeks
Me: y=14+3x
Friend: y=8+5x
14+3x=8+5x
14=8+2x
6=2x
3=x
y=14+3(3)=23
Guys I have a question So I have a 22% on my math class and there are 3 assignments worth 100 points if I did those assignments what would my grade be???
Anybody wanna answer this
y = 1/3x - 4
2x - 6y = -24
solve by elimination or substitution
part 4 Help ASAP
math
Answer:
The answer is n ≤ −48.
Step-by-step explanation:
plzz help what is the domain of the given function
A ........,.......,,......,.,...
plz i really need help
Answer:
280 children
Step-by-step explanation:
Answer:
D. 280 children
Step-by-step explanation:
The random variable X takes on the values of 2, 5, n, and 15. The probability distribution of X is shown in the following table
The question is missing some parts. Here is the complete question.
The random variable X takes on the values of 2, 5, n and 15. The probability distribution of X is shown in the table below.
The expected value of X is 9.1. What is the value of n?
a) 8
b) 8.52
c) 10
d) 12
e) 14.4
Answer: d) 12
Step-by-step explanation: In a probability distribution, Expected Value is the average (or mean) value a distribution can assume.
The Expected Value, E(X), can be determine by:
[tex]E(X)=\Sigma xP(x)[/tex]
in which
x is how many times an event happens
P(x) is the probability of an event happening
The table below n is x and expected value is 9.1, then:
[tex]9.1=2*0.1+5*0.4+0.2n+15*0.3[/tex]
[tex]9.1=0.2n+6.7[/tex]
[tex]0.2n=2.4[/tex]
n = 12
Value of n in this probability distribution is 12.
The value of n in the discrete probability distribution given is 12.
The the sum of [P(X) × X] in a discrete probability distribution is the expected value
From the discrete probability table given :
P(X) × X can be expressed as :
E(X), expected value = 9.1(0.1 × 2) + (5 × 0.4) + (15×0.3) + 0.2n = 9.1
0.2 + 2.0 + 4.5 + 0.2n = 9.1
6.7 + 0.2n = 9.1
0.2n = 9.1 - 6.7
0.2n = 2.4
n = 2.4 / 0.2
n = 12
Therefore, the value of n in the table is 12
Learn more :https://brainly.com/question/18153040
Select all the expressions which are equivalent to three times the sum of six and five.
A. 3 × 6 + 5
B. 3(6 + 5)
C. 3 × 5 + 6
D. (6 + 5) + (6 + 5) + (6 + 5)
E. 3 + (5 × 6)
ill give brainlyest
Answer:
A b c
Step-by-step explanation:
Answer:
A,D,E
Step-by-step explanation:
Ann earned $3 an hour for babysitting and $4 an hour for gardening. If she worked 5 hours babysitting and 3 hours gardening. How much money will she have made in the week?
Answer: 3 multiplied by 5 = 15 4 multiplied by 3 = 12
Step-by-step explanation:
15+12=27 please pick brainliest.
Please help me answer this question fast!!!!!!
~What trend do you observe?
~What do you think explains this trend?
Answer:
The trend is upwards. There is an upward trend.
Step-by-step explanation:
I think that the more money a candidate spent, the more votes they got.
y=586x=1000 1172x+2y=2000
Answer:
klmqe
Step-by-step explanation:
Answer:
The answer is that this equation is false it does not equal. 688792≠2000
Step-by-step explanation:
If yu plug in the values of x and y you will get 688792 and that is not equal to 2000.
I need to find the measure of angle c
Write an equation in point-slope form of the line that passes through the given point and with the given slope m.
(-8,5), m=2
Step-by-step explanation:
Just use the equation y-y1=m(x-x1)
Where you plug in (-8,5) at your and x1. Then you do the Algebra.
If UW = 7x-27, find UW
Answer:(_＼ヽ
＼＼ .Λ＿Λ.
＼( ˇωˇ)
> ⌒ヽ
/ へ＼
/ / ＼＼
ﾚ ノ ヽ_つ
/ /
/ /|
( (ヽ
| |、＼
| 丿 ＼ ⌒)
| | ) /
`ノ ) Lﾉ
(_／
Step-by-step explanation: your welcome! Tehehehehe
are the ratios 2:1 and 20:6 equivalent
Answer:
no
Step-by-step explanation:
HTH :)
Answer:
Step-by-step explanation:
From what I got when I was calculating. I believe they are not equivalent
0.
Tilly and GiGi require different brands of dog food. Tilly’s food costs $65.00 and GiGi’s food costs $35.00. Tilly’s food comes in a 30lb bag and GiGi’s comes in a 20lb bag. Tilly and GiGi’s owners stocked up on bags of food for the dogs by spending $370 for a total of 170lbs of dog food.
Write a system of equations that best models t, the number of bags of Tilly’s dog food, and g, the number of bags of GiGi’s dog food.
65t+35g=370
30t+20g=170
65t+30g=370
35t+20g=170
t+g=370
65t+35g=370
65t+30g=170
35t+20g=370
Answer:
OK I hear you well
Thanks for you
