Answer:
Step-by-step explanation:
Their present ages is 50 and 70.
Let Ages of two persons is 5x,7x
Eighteen years ago their ages were (5x-18),(7x-18) Their ratio is 8:13 so…
(5x-18)/(7x-18)=8/13
13(5x-18)=8(7x-18)
65x-234=56x-144
65x-56x=234–144
9x=90
x=10
According to Given Questions Assume that,
The Present Age of A and B be 5 x and 7 x years Respectively
: [tex] \implies[/tex] A's Age 8 years = ( 5 x - 8 ) years
: [tex] \implies[/tex] B's Age 8 years = ( 17 x - 8 ) years
: [tex] \implies[/tex] ∴ 5 x - 8 / 7 x - 8
: [tex] \implies[/tex] = 7 / 13
: [tex] \implies[/tex] 13 ( 5 x - 8 ) = ( 7 x - 8 )
: [tex] \implies[/tex] 65 x 49 x - 56
: [tex] \implies[/tex] 16 x = 48
: [tex] \implies[/tex] = 48 / 16 = 3
A's Present Age of 5 years = ( 5 × 3 ) = 15 years
B's Present Age of 7 years = ( 7 × 3 ) = 21 years
Hence, present ages of the girls are 15 years and 21 years.Helpppppp plssssssss
ill mark brainlist plss help
Answer:
It's 1080 miles.
Step-by-step explanation:
All you need to do is multiply the length and width together to get the area.
A = l*w would be the formula.
Draw a model to show 4.4 divide by 4
Answer:
Hope this Helps! Also Answer is 1.1
Step-by-step explanation:
Which of the following graphs shows a pair of lines that represents the equations with the solution (3, −6)?
Answer:
the last one
Step-by-step explanation:
Mrs.flossi is having
Answer:
8
Step-by-step explanation:
Answer:
Mrs.Flossi is having 8 teams
Step-by-step
the full question wasent there but i did it on I-Ready nd got it correctly i hope this helps
PLS PLS PLS PLS PLS HELP I WILL GIVE BRAINLIEST
Answer:
I wont give you the answers, but i will show you how
Step-by-step explanation:
add all the numbers together and then when you want to find a probability make them fractions
for example:
P(blue eyes): 12/80
then simplify the fractions
which statement is true?
Answer:
the 3rd one is the true one
Solve for x. around your answer to the nearest tenth
2.5/10=X/50
Answer:
x = 12.5
Step-by-step explanation:
Cross multiply and solve for x
Answer:
x=12.5
hope this helps:)
solve the quadratic equation 2x^2-5x+1=x+4
Answer:
Step-by-step explanation:
Combine like terms in 2x^2-5x+1=x+4: 2x^2 -6x - 3 = 0
The coefficients of this quadratic are {2, -6, -3}. Apply the quadratic formula. Start by finding the discriminant, b^2 - 4ac:
b^2 - 4ac = (-6)^2 - 4(2)(-3) = 36 + 24 = 60
Because the discriminant (60) is positive, we know that this quadratic has two real, unequal roots:
-(-6) ± √60 6 ± (√4)(√15)
x = -------------------- = ----------------------
2(2) 4
or:
6 ± 2√15 3 ± √15
x = ----------------- = ----------------
4 2
Graph the line y=3x-8
Divide.round your answer to the nearest whole number 87,040.65÷9
Answer: 9671.0 is the answer :)
Answer:
19
Step-by-step explanation:
The perimeter of a rhombus with one side equal to 7mm
Answer:
28 mm
Step-by-step explanation:
All sides of a rhombus are equal in length and there are 4 sides so do 7 * 4 = 28mm.
Answer:
Perimeter of Rhombus: 28mm
Step-by-step explanation:
If one side of a Rhombus is 7mm, then its perimeter is 28 because all sides of a Rhombus is equal.
=> Perimeter of Rhombus: 7 x 4=> Perimeter of Rhombus: 28mmHoped this helped.
Help plz, Its math question
can someone help pls
Answer:
A. parallelogram
Step-by-step explanation:
I need help pls pls pls pls
Answer:
9(w+8) factor 9
Step-by-step explanation:
factor expression
9w+72 divide both side by 9
9/9w+72/9
w+8
Answer:
9 (w + 8)
I'm sorry I can't explain it but here's the answer
Quick! Will give brainliest!
Janie was asked to bring water for her daughter's soccer team. The coach told her he wants each player to drink
1
8
gallon of water after a game. There are 9 players on the team. How much water should Janie bring?
StartFraction 1 Over 72 EndFraction gallons
1 and one-eighth gallons
9 and one-eighth gallons
72 gallons
Answer:
1 gallon and 1 pint
Step-by-step explanation:
I guess that the actual amount of water needed per player is 1/8 of gallon and not 18 gallons.
You will need to bring 9 x 1/8 = 9/8 = 1 ¹/₈ gallons or 1 gallon and 1 pint
1 gallon = 4 quarts = 8 pints = 16 cups = 128 ounces
or
1 gallon = 3.785 liters
The US is one of the few countries (along with Liberia, and Myanmar) that still uses the imperial system to measure things, e.g. inches, feet, yards, pounds, miles, pints, gallons, etc. The rest of the world uses the metric system, e.g. meters, liters, kilograms, etc.
I GIVE BRAINLIEST FOR EXPLANATION AND CORRECT ANSWER EXTRA POINTS 7
Indicate whether there is exactly one solution, infinitely many solutions, or no solution to the equation shown.
2x - 4 = 2(x - 2)
Answer:
Infinitely many solution
Step-by-step explanation:
Simplify
2x - 4 = 2x - 4
Lets see:
if we put 1:
2 - 4 = 2 - 4
-2 = -2
Now lets try another number : 2
4 - 4 = 4 - 4
0 = 0
So we can say that there is more than one solution
this cancels out single solution and no solution
There are infinitely many solutions to the given algebraic expression 2x - 4 = 2(x - 2).
The algebraic expression is an expression that is composed of variables and their arithmetic operations.
From the given parameters
2x - 4 = 2(x - 2)Open brackets
2x - 4 = 2x - 4Since we are having the same algebraic expression on both sides;
Then, we won't be able to get exactly one solution but an infinite number of solutions.
This is because any number that is being substituted for the value of x will always give a different solution.
Learn more about algebraic expression here:
https://brainly.com/question/4344214
Find the missing length of the triangle.
12 cm
15 cm
Answer: 9
Step-by-step explanation:
How would you factor this 2x^3 + x^2 + 5x + 6. The factored form should not have any radicals or imaginary numbers.
Answer:
(x+1)(2x2−x+6)
Step-by-step explanation:
KOFI electronics bought a shipment of TVs at a net price of $477.36 each, after discounts of 15%, 10%, and 4%. What is the list price?
Answer:
The list price of each TV would be $ 350.57.
Step-by-step explanation:
Since KOFI electronics bought a shipment of TVs at a net price of $ 477.36 each, to determine the list price after discounts of 15%, 10%, and 4%, the following calculations must be performed:
100-15 = 85
477.36 x 0.85 = 405.756
100-10 = 90
405.756 x 0.9 = 365.1804
100-4 = 96
365.1804 x 0.96 = 350.573184
Thus, after the discounts were made, the list price of each TV would be $ 350.57.
A car dealership increased the price of a certain car by 6%. The original price was $34,500.
(a) Fill in the blank to write the new price in terms of the original price.
Write your answer as a decimal.
New price = ] » Original price
(b) Use your answer in part (a) to determine the new price.
New price: $]
Answer:
$36570
Step-by-step explanation:
The original price is 34500, so the %given must be the increase in price :
34500x(1+6%)
=34500x1.06
=36570//
What are the coordinates of the point (-9,10) after being reflected across the x-axis on a coordinate plane?
Answer:
-9,-10
Step-by-step explanation:
The X is on the axis and nothing will change, and the Y will flip sides.
The coordinates of the point after being reflected across the x-axis are (-9, -10).
When a point is reflected across the x-axis on a coordinate plane, its y-coordinate changes sign while its x-coordinate remains the same.
The original point is (-9, 10).
After reflecting across the x-axis, the y-coordinate changes sign, so the new point becomes:
(-9, -10).
So, the coordinates of the point after being reflected across the x-axis are (-9, -10).
To know more about coordinates;
https://brainly.com/question/33635791
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ANSWER MY QUESTION AND ILL ANSWER YOUR QUESTIONS
Which property of equality is used to solve –9.5 = x/1.5?
CHOICES :
1. distributive
2.subtraction
3.addition
4.multiplication
Step-by-step explanation:
it is not distributive because distributive is distributing a certain number into parentheses or if you have an exponent that would be distributing. it is also not subtraction. i am really sorry i dont know the full answer but i wanted to help as much as i possibly could i felt sad just scrolling by. i hope it helps you have a 50 50 now so i hope this helps
Find the 20th term of the sequence.
1600, 1200, 900, ...
First approach :
The above series can be seen as
1600 , (1600–400) 1200, (1200–300) 900 .
So we see that the values are getting decreased by 400,300 respectively.
Hence the next term in the sequence will be 900–200 = 700.
Other approach could be :
A geometric progression with ratio as 3/4.
1600*(3/4) = 1200
1200*(3/4) = 900
900*(3/4) = 675
Taking the above two approaches in mind,the two possible answers could be 700 or 675
Um- here ya go
The 20th term of the sequence.
1600, 1200, 900, ..., is 6.76.
What is a geometric sequence?A unique kind of sequence called a geometric sequence has a constant ratio between every two succeeding terms. This ratio is regarded as one of the geometric sequence's common ratios.
aₙ=a₁(r)ⁿ⁻¹
Given:
A geometric sequence,
1600, 1200, 900, ...
To find the common ratio:
take the ratio of successive terms
r = The value of the second term / the value of the first term
r = 1200/1600 = 0.75.
The explicit formula of a geometric sequence is,
aₙ=a₁(r)ⁿ⁻¹
aₙ= 1600(0.75)ⁿ⁻¹
a₂₀ = 1600(0.75)¹⁹
a₂₀ = 6.76
Therefore, the 20th term is 6.76.
To learn more about the geometric sequence;
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put in number bond 301+ 49
Answer:
350
Step-by-step explanation:
Answer:
350
Step-by-step explanation:
349 + 1 = 350 this should be easy.
Please help I’ll mark you as brainliest if correct!
Answer:
Answer J
Step-by-step explanation:
To simplify the concept, we can change the inequality to y+3 >= 5. The variable "y" is "-1/2(x)" We know that y must be greater than or equal to "two." The only way this is possible is if x itself is equal to or less than -4.
Plzz help i dont know how to do this
4, 2, 4, 1, 8, 9, 7, 5, 2, 8
By how much would the range decrease if the number 7 replaced the number 9 in the set?
Answer:
0
Step-by-step explanation:
The range is the difference between the lowest and highest values. Since 9 is still the highest value, the range would not change by any amount by replacing 7 with 9.
help me on this it is 70 points
Answer:
10.4 or 52/5 or 10 2/5
Step-by-step explanation:
Answer:
I got 2/5
Step-by-step explanation:
Hope I helped.