Answer:
The present age of the mother is 40 years
Step-by-step explanation:
Let the age of the mother be M and that of the daughter D. Given that the mother is now 2 1/2 times old as her daughter Mary then
M = 2.5D
Given that Four years ago the ratio of their ages was 3:1
The mother's age 4 years ago was
= M - 4
and that of the daughter then was
= D - 4
Hence
(M - 4)/(D - 4) = 3/1
Cross multiply
M - 4 = 3(D - 4)
M - 4 = 3D - 12
M = 3D - 12 + 4
M = 3D - 8
Substitute into the first equation
3D - 8 = 2.5D
3D -2.5D = 8
0.5D = 8
D = 8/0.5
= 16 Years
M = 2.5D
M = 2.5 * 16
= 40 Years
What is the value of 3.45 + 2.6 + 32.007?
Answer:
38.057
Step-by-step explanation:
someone plz help figure this out i need it today
Can u make the picture closer
The costs for going to a dog beach are $7 for 1 dog, and $2 for each additional dog. Write an equation for this situation, when going to the beach with at least one dog.
Answer:
$7+$2(x-1)-y
Step-by-step explanation:
$7+$2(x-1)=y where $7 is fixed fee and $2(x-1) represents $2 more for every ADDITIONAL dog more than the first dog.
PLEASE ANSWER IN SCIENTIFIC NOTATION WITH STEPS PLEASE DUE BY 10:15 AM NO BOTS
Answer:
i think is c.
Which of the following statements shows the inverse property of addition?
O y + (-y) = 0
Oy+0=y
Oty=y
O y + y = 2y
Answer:
[tex]y + (-y) = 0[/tex]
Step-by-step explanation:
Required
Which represents addition inverse
This property illustrates the addition of a number and its inverse (i,e, negation)
So, we have:
[tex]-y + y = 0[/tex]
or
[tex]y + (-y) = 0[/tex]
If 661,17A is a multiple of 12, then what is A?
Answer:
A=6
Step-by-step explanation:
A can only be a number 1-9 so try every number.
661,176/12 = 55098
Hope this helped! :)
Martin's bank account balance is negative. Each week that his
account remains negative the bank charges $36.50. Martin did
not make any deposits and now his bank account balance is
-$182.50. How many weeks was his account negative?
Answer:
5
Step-by-step explanation:
182.50/36.50 per week= 5 weeks
Find the distance between the points (1,8) and (9, 2).
Write your answer as a whole number or a fully simplified radical expression. Do not round.
units
Answer:
[tex]distance = \sqrt{(x_{1} -x_{2})^2+(y_{1} -y_{2})^2 }\\\\[/tex]
[tex]=\sqrt{(9-1)^2+(2-8)^2 }\\\\=\sqrt{8^2 + 6^2}\\\\=\sqrt{64 +36 }\\\\=\sqrt{100} = 10units[/tex]
helppppp me its for a grde
Answer:
567.7
Step-by-step explanation:
This is the correct answer because 7.4 would be the radius & 9.9 would be the height.
V=πr2h
3=π·7.42·9.9
3≈567.7
Hope this helps please mark as brainliest! Thx!➕➖➗
Find the volume of the prism below.
3 ft
8 ft
6 ft
Answer:
3: 27
8; 512
6; 216
Step-by-step explanation:
PLEASE HELP, I WILL MARK BRAINLIEST!
Answer:
5
Step-by-step explanation:
There are 5 different segments.
Use the vertical line test to determine whether y is a function of x
Answer:
Not a function of x
Step-by-step explanation:
A vertical line intersects the graph twice, which immediately tells us that y is not a function of x here. If y were a function, the vertical line would intersect the graph in only one place.
No, A vertical line intersects the graph doubled, which instantly tells us that y exists not a function of x here. If y existed a function, the vertical line would intersect the graph in just one area.
What is Vertical line test?If a vertical line can be drawn to connect the graph of a function in more than one place, then stands NOT a function. If it exists not feasible to draw a vertical line to touch the graph of a function in more than one place, then y exists as a function of x.
No, A vertical line intersects the graph doubled, which instantly tells us that y exists not a function of x here. If y existed a function, the vertical line would intersect the graph in just one area.
Therefore, the correct answer is option B. No.
To learn more about vertical line test
https://brainly.com/question/1821791
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is it a solution or not
y = 2x
y = x + 1
find the area of a trapezoid
Answer:
the right answer is
270 squared unit
Ricky and Lucy are 40 miles apart on bicycles heading towards each other on the same road. Ricky bicycles at 8 mph and Lucy rides at 6 mph. In how many hours will they meet?
Answer:
2.86 hours
Step-by-step explanation:
Ricky and Lucy are 40 miles apart on bicycles heading towards each other on the same road. Ricky bicycles at 8 mph and Lucy rides at 6 mph. In how many hours will they meet?
Speed = Distance/time
Distance = Speed × time
t = ?
Hence,
8mph ×t + 6 mph × t = 40 miles
8t + 6 t = 40 miles
14t = 40 miles
t = 40/14
t = 2.86 hours
They will meet in 2.86 hours
Which number is included in the set of integers that when added to 24 gives a sum of less than zero? Select all that apply.
7
-2
4
3
0
9
Answer:
immma send you the link friend me on hereStep-by-step explanation:
Which fraction is equivalent to -(7/8)
1. -7/8
2. -7/-8
3. -(-7/8)
4. -(7/-8)
Answer:
A. The others are equivalent to 7/8
What is equivalent to square root of 2 over 2? Select all that apply
Answer:
The answer is 2.
Step-by-step explanation:
I need the correct answer please and thank you.
Answer:
1,156 I think that’s right
Step-by-step explanation:
Can someone help me ASAP
Answer:
A) 1/2
Step-by-step explanation:
blue/total number of spins
30/60
1/2
Ans: 1/2
I need help with this question hurry
Answer:
a b c and f
Step-by-step explanation:
rectangle parallelogram square and rhombus
Help please I am struggling thank you
The answer is 904.8 yd³
Step-by-step explanation:
The formula for a sphere's volume is 4/3πr²
r in this case is 12/2 which is 6. That means that r=6 which gives us 904.78 which is rounded to 904.8.
Answer:
904.32
Step-by-step explanation:
v= [tex]\frac{4}{3\\}[/tex][tex]\pi[/tex][tex]r^{3}[/tex]
first cube the radius (6) (radius is half of the diameter 12)
6x6x6 = 216
multiply by pi
216 x 3.14 = 678.24
multiply by 4/3
[tex]\frac{678.24}{1}[/tex] x [tex]\frac{4}{3}[/tex] = [tex]\frac{2712.96}{3\\}[/tex] = 904.32
find the area of a circle with a radius of 4.25 meters. round your answer to the nearest hundredth
Answer:
56.74502 units^2
Step-by-step explanation:
area = pi*radius^2
area = (3.14159265359)(4.25)^2
area = 56.74502 units^2
I need help on this math question, coordinate planes.
Answer:
where is the question?
Step-by-step explanation:
the picture is all black.
Answer:
4840 yards squared!
Which equation represents the line that is perpendicular to and passes through (-6,-9)?
A.
x = -9
B.
x = -6
C.
y = -9
D.
y = -4
Answer:
y = -9
Step-by-step explanation:
Complete question;
Which equation represents the line y = 1/4 that is perpendicular to and passes through (-6,-9)?
The equation of the line in point slope form is y-y0 = m(x-x0)
Given the equation y = 1/4, the slope of the line is zero
Substitute the slope and the point into the formula;
y -(-9) = 0(x-(-6)
y + 9 = 0
y = -9
Hence the required equation is y = -9
Answer:
C.y = -9Step-by-step explanation:
NEED HELP ASAP
If you roll a 6-sided die 12 times, what is the best prediction possible for the number of times you will roll a six?
Answer:
2 times
Step-by-step explanation:
the probability to get a 6 is 1/6. multiply it by 12/1, to get 12/6 which is 2
solve for x
i really need help
Answer:
x =10
Step-by-step explanation:
angles are equivalent
170 = 2x + 6x + 90
170 - 90 = 8x +90 - 90
80 = 8x
10 = x
Simplify this expression using the distributive property.
2(2z+9)
Answer:
[tex]\bold{4z+18}[/tex]
Step-by-step explanation:
Hi there!
The Distributive Property states that
[tex]\bold{a(b+c)=ab+ac}[/tex]
Now, let's use this property to solve our problem:
[tex]\bold{2(2z+9)}[/tex]
[tex]\bold{4z+18}[/tex]
Hope it helps! Enjoy your day!
~Just a teenage girl willing to help
[tex]\bold{Besties4Ever:-):-)}[/tex]
Hi, let me help you out!
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In order to simplify this, we're going to use a property that's called the Distributive Property:
[tex]\longrightarrow\tt{a(b+c)=ab+ac}[/tex]
Where a, b, and c can be variables, constants, or both (like 4c).
Now let's simplify our expression:
[tex]\longrightarrow\tt{2(2z+9)}[/tex]
Multiply 2 times 2z and 9:
[tex]\longrightarrow\tt{4z+18}[/tex]
Hence, we conclude that the answer is: [tex]\tt{4z+18}[/tex].
I hope this helps you! Have an awesome day.
If you need any explanation or clarification, just let me know! :)
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What is the slope of this line?
Options:
A. -2
B. 1
C. 2
D. 1/2
Answer:
b
Step-by-step explanation:
brainliest pls
mDE = 128 and mBC = 63. Find mZA. (The figure is not drawn to scale.)
Answer:
The angle formed by the intersection of 2 secants could be found out as: 1/2 (Arc DE - arc BC)
mDE = 128
mBC = 63
=> 1/2 (128 - 63)
=> 32.5 = mZA
Hope this helps!