Answer:
37
Step-by-step explanation:
just add the two numbers like they are not negative.
If x-5=12, what is the value of x-9?
Answer
8
Step-by-step explanation:
5+12=17 and 17-9=8
If 2,x,18,and15y are in the proportion find the value of x
Answer:
if your proportion is [tex]\frac{2}{x}[/tex] = [tex]\frac{18}{15y}[/tex] then your answer would be 1.667 or 1 [tex]\frac{2}{3}[/tex]
edit: your answer could also be [tex]\frac{5}{3}[/tex]
What is the reciprocal of 7/11 in simpliest form
Answer:
11/7is your answer ....
Step-by-step explanation:
hope its help you
Two cities on a map is 7.5 centimeters.The map is 1 centimeter represents 30 kilometers.What is the distance between the cities in kilometers?
Answer:
225 kilometers
Step-by-step explanation:
7.5 times 30 equals 225
Which expression is equivalent to 4(x + 6), if x = 8 ?
A. 8 + x + 8 + 6
B. 8x - 8
C. 8 + x + 6
D. 8x + 24
Answer:
B
Step-by-step explanation:
4(8+6)=56
8(8)-8=56
Answer:
b
Step-by-step explanation:
the equation equals 56 and b equals 56 as well
PLEASE HELP
y = 4x-9
y=x-3
Your work using substitution
Answer:
-36
-3y
Step-by-step explanation:
F
Answer:
(4,-7)
Step-by-step explanation:
y=4x-9
y+3=x
y=4(y+3)-9
y=4y+12+9
y=4y+21
y-4y=21
-3y=21
y=-7
Now use y to find x
y+3=x
-7+3=4
x=4
Here are two nets. Mai said that both nets can be assembled into the same triangular
prism. Do you agree? Explain or show your reasoning.
HELP ASAP IT'S AN EMERGENCY
(6.2x10^17)+(1.2x10^15)
Answer:
621200000000000000
Step-by-step explanation:
(6.2×10^17 )+(1.2×10^15)
6.2×100000000000000000+1.2×10^15 ≈6.212⋅10^ 1 7
620000000000000000+1.2×10^15 ≈6.212⋅10^ 1 7
620000000000000000+1.2×1000000000000000≈6.212⋅10^ 1 7
620000000000000000+1200000000000000≈6.212⋅10^1 7
621200000000000000
Answer:
6.212×10^17
Step-by-step explanation:
[tex] = ( 6.2 \times {10}^{17} ) + (1.2 \times {10}^{15} )[/tex]
[tex] = (620 \times {10}^{15}) + (1.2 \times {10}^{15} )[/tex]
[tex] = 620 \times {10}^{15} + 1.2 \times {10}^{15} [/tex]
[tex] = (620 + 1.2)\times {10}^{15} [/tex]
[tex] = 621.2\times {10}^{15} [/tex]
[tex] = 6.212 \times {10}^{17} [/tex]
I hope it helped u :)
Help me please
Which polygons are similar to palygon a
Answer:
I believe it's B because they look very similar
In an office building, 39 offices are currently being rented. This represents 30% of the total units. How many offices are there in the building?
There are __ offices in the building
Answer:
130 offices are in the building
Step-by-step explanation:
first 39/x = 30/100
secondly, you cross multiply 39 x 100 and 30 x x
100 x 39= 3900
3900/30 = 130
Answer:
ANS. = 130
30% or 30/100=39offices
use cross multiplication
100/30 x 39/1 (note 30/100 is inversed to 100/30) math. law
10/3 x 39/1 (using divisor 10)
10/1 x 13/1 (using divisor 3)
10 x 13 = 130
Ans = 130 offices
Ans.Checked
30% of 130 offices
30/100 x 130/1
3/10 x 130/1 (10 as divisor)
3/1 x 13/1 (10 as divisor)
3 x 13 = 39
39 offices
Q.E.D
The employees of a firm that manufactures insulation are being tested for indications of asbestos in their lungs. The firm is requested to send three employees who have positive indications of asbestos to a medical center for further testing. If 30% of the employees have positive indications of asbestos in their lungs, find the probability that eleven employees must be tested in order to find three positives. (Round your answer to three decimal places.)
Answer:
0.070
Step-by-step explanation:
Y = number on trial
Y has a negative binomial distribution
r = 3
P = 30% = 0.3 probability of positive indication.
P(Y = 11) probability of 11 employees that must be tested to get 3 positives
Y-1Cr-1*p^r*q^(y-r)
Y-1 = 11-1 = 10
r-1 = 3 -1 = 2
10C2 x 0.3³x0.7⁸
45x0.027x0.05764801
= 0.070
This is the probability that 11 employees must be tested to get 3 positives.
Jim is an archaeologist who wants to determine the age of a fossil. The half-life of Carbon-14 is 5730 years. Jim determines there must have been 6.6 grams of Carbon-14 in the fossil when the animal was alive. Now there is only 1.2 grams of Carbon-14 remaining. What is the age of the fossil?
14,092.54
13,119.45
16,345.18
15,540.97
Answer:
14,092.54
Step-by-step explanation:
I just had this question and got it right.
8(3x-2)-8x=9(2x-6) find x
Answer:
x=19
Step-by-step explanation:
8(3x-2)-8x=9(2x-6) Distribute.
24x-16-8x=18x-54 Combine like terms.
16x-16=18x-54 Subtract 16x from both sides (getting rid of a variable first
-16x -16x is easier).
-16=2x-54 Add 54 to both sides.
+54 +54
38=2x Divide both sides by 2.
/2 /2
19=x
Hope this helps!! Have a great day ^^
match the angle with it's corresponding classification
Answer:
∠TPR = right angle
∠SPQ = acute angle
∠QPT = obtuse angle
Step-by-step explanation:
Right angles are 90°, acute angles are angles less than 90°, obtuse angles are angles more than 90°
are the triangles below acute obtuse or right
Answer:
Acute
Step-by-step explanation:
Answer:
B = acute
C = acute
Step-by-step explanation:
None of them have degrees over 90 degrees
sorry for the late reply lol
Which inequality is represented by the graph?
A. y > -2/3x+1
B.y < -2/3x +1
C.y < -3/2x +1
D.y> -3/2x +1
Answer:C
Step-by-step explanation:
56x + 40 = 48x + 104
Answer:
56x-48x=104-40
8x=24
X=3
Step-by-step explanation:
the answer is 8
]explanation subtract 56-48 and 104-40 you should get 8x=64
divide 8/8 and 64/8 and the answer is 8
2) Chicken soup is 3 cans for $0.55. How much would a
dozen soup cans cost?
Answer:
It would cost $2.20
Step-by-step explanation:
If 3 cans = $.55
then 3*4 = 12
soooo 4*.55 = 2.20
Hope this helps!!!
Write the whole number 7 as an improper fraction.
Improper Fractions means
The numerator is greater than (or equal to) the denominator.Then the Answer is :
[tex] = \dfrac{21}{3} [/tex]Convert 5/6 into a decimal
Answer:
Divide the numerator, 5, by the denominator, 6, to express the fraction 5/6 as a decimal. You can do this on either a calculator or using long division by hand. The answer will equal 0.83333 with the number 3 repeating endlessly.
Step-by-step explanation:
We can write 5/6 into a decimal as 0.84.
What is decimal numeral system?The decimal numeral system is the standard system for denoting integer and non-integer numbers.
Given is to write 5/6 into a decimal.
We can write 5/6 as a decimal below -
{x} = 5/6
{x} = 0.84
Therefore, we can write 5/6 into a decimal as 0.84.
To solve more questions on decimal, visit the link below -
https://brainly.com/question/4954886
#SPJ5
A newspaper is launching a new advertising campaign in order to increase the number of daily subscribers. The newspaper currently (t0) has 26,000 daily subscribers and management expects that number, S(t), to grow at the rate of subscribers per day, where t is the number of days since the campaign began. How long (to the nearest day) should the campaign last if the newspaper wants the number of daily subscribers to grow to 49,000?
Answer:
57 days
Step-by-step explanation:
Given that:
t(0) = 26000
Growth rate (S'(t)) = 80t^1/2
Targeted number of subscribers = 49000
Take the integral of the growth rate :
∫80t^1/2dt = [(80t^(1/2 + 1)) / 1/2 + 1] + C
[(80t^(1/2 + 1)) / 1/2 + 1] + C = (80t^3/2) / 3/2 + C
(80t^3/2) * 3/2 + C = (160/3)t^3/2 + C
(160/3)t^3/2 + C
Let C = t(0)
(160/3)t^3/2 + 26000 = 49000
(160/3)t^3/2 = 49000 - 26000
(160/3)t^3/2 = 23000
Multiply both sides by 3/160
t^3/2 = 23000* 3/160
t^3/2 = 69000/160
t^3/2 = 431.25
t^(3/2 * 2/3) = 431.25^2/3
t = 57.080277
t = 57 days (approx.)
A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the given equation. Using this equation, find out the maximum amount of profit the company can make, to the nearest dollar. y=-x^2+78x-543
Answer:975
Step-by-step explanation:
How do you write 7.28 x 104 in standard form?
Select the correct answer from the drop-down menu.
A company sells its products to distributors and boxes of 10 units each. it's profits can be modeled by this equation, where p is the profit after selling n boxes.
p = -n² + 300n + 100,000
Use this equation to complete the statement.
The company breaks even, meaning the profits are only $0, when it sells _____ boxes.
Options for Blank:
A: 200 or 500
B: 500
C: 150
D: 200
Answer:
B. 500Step-by-step explanation:
Given the profit made by a company modeled by the function
p = -n² + 300n + 100,000
The company breaks even when p = 0
To get the number of boxes sold when the company breaks even, we will substitute p = 0 into the equation.
0 = -n² + 300n + 100,000
multiply through by -1
0 = n² - 300n - 100,000
n² - 300n - 100,000 = 0
(n² - 500n) + (200n - 100,000) = 0
n(n-500)+200(n-500) = 0
(n+200)(n-500) = 0
n+200 = 0 and n-500 = 0
n = -200 and n = 500
Since n cannot be negative
Hence n = 500
This means that the company breaks even when it sells 500 boxes
Which sentence can represent the inequality
kevin and joe each manage a shop that sells CDs. Kevin’s shop is in the high street and Joes is in the rentail park.
Answer:
Number of CDs sold each day Frequency
0 – 10 10
11 – 20 34
21 – 30 24
31 – 40 13
41 – 50 7
51 – 60 12
Can someone please help me with this, I will mark you as brainliest
Answer:
1st answer is 1/2x^5
2nd answer is m^3/16p^2q^2
3rd answer is 2r^4+9r^3
Kane is training for a marathon. He starts by running 3 miles during every training session.
Each week plans to increase the distance of his run by mile.
1/4
Let w be the number of weeks. Write an expression to show the distance Kane
runs in a training session after w weeks.
Answer:
1/4w + 3 the answer has to be 20 characters long so ignore this
Answer:
Step-by-step explanation:
Given
Required
Determine the distance for w weeks
This will be calculated using the following Arithmetic progression formula
Where
Substitute these values
Open Bracket
Collect Like Terms
Take LCM
3.Which of the following is not a perfect cube?
a) 216
b) 1000
c) 243
d) 1331
