Mark's dad is three times older than Mark. Mark's sister is 2 years younger than Mark. (3m) The sum of their ages is 48. How old are Mark, his sister, and his dad?
Answer:
Age of Mark [tex]=10[/tex] years
Age of Mark's dad [tex]=30[/tex] years
Age of Mark's sister [tex]=8[/tex] years
Step-by-step explanation:
Let age of Mark be [tex]x[/tex] years.
Mark's dad is three times older than Mark
Age of her Mark's dad [tex]=3x[/tex]
Mark's sister is 2 years younger than Mark
Age of Mark's sister [tex]=(x-2)[/tex] years
The sum of their ages is 48.
[tex]x+3x+x-2=48\\5x-2=48\\5x=50\\x=10[/tex]
Age of Mark [tex]=x=10[/tex] years
Age of Mark's dad [tex]=3x=3(10)=30[/tex] years
Age of Mark's sister [tex]=x-2=10-2=8[/tex] years
What is the perimeter?
Explain how you got that.
Answer:
The perimeter is 60in.
Step-by-step explanation:
Perimeter = the outer length
Add all the lengths
8 + 8 + 4 + 8 + 4 + 8 + 4 + 12 + 4
= 60 in
Please please help pleaseeeeee
also .. it wouldnt let me crop the photo ..
Six friends had lunch together and decided to spilt the bill evenly, If the bill was 48.60 what was everyone’s share?
Answer:
8.1
Step-by-step explanation:
48.6 / 6 is 8.1 .
The amount of money each friend is required to contribute is $8.1.
What is a unitary method?A unitary method is a mathematical way of obtaining the value of a single unit and then deriving any no. of given units by multiplying it with the single unit.
Given, Six friends had lunch together and decided to spilt the bill evenly.
As they have split the bill evenly,
The amount of money each friend needs to contribute can be obtained by dividing the total amount by the total number of friends which is,
= $(48.6/6).
= $8.1
learn more about the unitary method here :
https://brainly.com/question/28276953
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What does it mean to SOLVE a system of linear equations?
Answer:
In solving a system of linear equations, we try to find values for each of the unknowns that will satisfy every equation in the system
Step-by-step explanation:
Plz help due tomorrow
Answer:
Step-by-step explanation:
8a + 16c
8(a + 2c)
answer is C
Part B
8(-5) + 16(-1)
-40 - 16 = -56
Answer:
PART A: 8(a + 2c)
PART B: -56
Step-by-step explanation:
PART A:
8a + 16c
8(a) + 8(2c)
8(a + 2c)
PART B:
8a + 16c
if a = -5, and c = -1,
8(-5) + 16(-1)
-40 + -16
= -56
Please help I will mark brain!
what is 1-1 i wanna know because i dont know
Answer:
Step-by-step explanation: 0
Answer:
0
Step-by-step explanation:
no explanation needed
Elena is feeding her neighbor’s dogs. Each dog gets 1/2 cup of dog food, and she uses 3 cups of food when she feeds them. How many dogs does her neighbor have?
Answer:
brainliest please
Step-by-step explanation:
6 dogs because 1/2 cup per dog 6 divided by 3 = 1/2 or 2
so2 dogs per cup
Which one is it? I got confused plz help
Answer:
Red: 2.035 x 10(4)
Step-by-step explanation:
Answer:
Red.
Step-by-step explanation:
Scientific notation consists of the ones place with a decimal right after it and a 10 to the something power next to it, therefore red is your answer.
Can yall help me please
Answer:
6, 7, 2, 3
Step-by-step explanation:
supplementary means that two or more angles add together to equal 180 degrees
a straight line equals 180 degrees so the intersecting of a line creates two angles that are supplementary. That means <5 is supplementary with 6 and 7.
<5=<1 because the lines intersecting it are parrell. Using the same thinking process for angle 1 as above, it is supplementary with 2 and 3. and since 1 is equal to 5 it is also supplementary to 2 and 3.
1x +y = -7
1x - y = 3
cap
Step-by-step explanation: gxetuciv
I HAVE THE EQATION I NEED THE INDEPENDENT AND DEPENT VARBLE
Answer:
The independent variable is the number of bushels of corn with the dependent variable being the cost per bushel.
Step-by-step explanation:
The dependent variable depends on the independent variable. The cost per bushel depends on the availability of bushels.
Massa says that 540 = 6 = 9. Is he right? Explain how you know using an equation.
Answer:
i think you have written wrong equation
Step-by-step explanation:
help me plsssssssssssssa
Answer:20
Step-by-step explanation:
what type of transformation is shown
Answer:
A reflection
Step-by-step explanation:
It has been mirrored.
Answers? Ill give you whatever you want
Answer:
The 3rd one. C. x² + 8x + 7.
Solve for x (X-9)(x+5)=8(21)
I dentify the translation the orange triangle a is the pre-image the pre-image moved ___ until horizontally to form the purple triangle b the pre-image moved ___ until vertically units vertically to form the green triangle
Answer:
The pre-image moved 5 units horizontally to form the purple triangle, B.
The pre-image moved 4 units vertically to form the green triangle, C.
Step-by-step explanation:
Joe has eaten 3/5 of a pizza. Jane has eaten 1/6 of a pizza.
How many times more pizza has Joe eaten than Jane?
Answer:
3.6
Step-by-step explanation:
Find the solution of this system of equations.
Separate the x- and y-values with a comma.
X-6y = -8
x - y = 12
Answer:
The answer is (16, 4)
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
~Hoped this helped~
Madison has a collection of 220 coins. How many coins represent 5% of her
collection?
Help me please
Answer:
11
220/x=100/5
(220/x)*x=(100/5)*x - we multiply both sides of the equation by x
220=20*x - we divide both sides of the equation by (20) to get x
220/20=x
11=x
x=11.
2) y= 4x - 2
3х + 2y = 7
in subsitutuion
Answer:
x=1
Step-by-step explanation:
Substitute the y equation for the variable y in the second question
3x +2(4x-2)=7
3x+8x-4=7
11x-4=7
11x=11
x=1
Calculate the area of the parallelogram, giving your answer correct to 3 significant figures.
Answer:
114 units²
Step-by-step explanation:
The opposite sides of a parallelogram are congruent, so
AB = CD , that is
13x - 7 = 5x + 9 ( subtract 5x from both sides )
8x - 7 = 9 ( add 7 to both sides )
8x = 16 ( divide both sides by 8 )
x = 2
Then
5x + 9 = 5(2) + 9 = 10 + 9 = 19
3x = 3(2) = 6
The area (A) of a parallelogram is calculated as
A = bh ( b is the base and h the perpendicular height ), thus
A = 19 × 6 = 114 units²
Rudy has 10 white seashells 23 pink seashells and 21 brown seashells if he divides his seashells equally between 3 friends how many seashells will each friend get?
Answer:
21 shells
Step-by-step explanation:
10+23+21=64
64/3=21.33
always round down, you'll have one left over
Answer:
18
Step-by-step explanation:
10+23+21= 54
54/3=18
hmark 1 - Item 205023
Erin received the following scores on her last four spelling tests.
23, 82%, 0.8,
17
20
Which of these is Erin's highest score?
Answer:
82% is her highest score
Step-by-step explanation:
82 is greater than 23, 80, 17 and 20
Barry saved $7 less than Nadine. Together they saved $25.
How much did Nadine save? _____
in Mike’s house are broken now. His father replaced 3/14 of the broken) .4 windows. Uncle Jack replaced 1/7 of the broken windows. Who replaced the greater fraction of the broken windows?
Answer:
Mike's father produces a greater fraction.
Step-by-step explanation:
Amount of windows replaced by Mike's father = 3/14
Amount of windows replaced by Uncle Jack = 1/7
This 1/7 can also be expressed as 2/14
Now, since they both have the same denominators, it means that the higher the numerator the greater than the other fraction.
Thus, 3/14 is greater than 2/14.
Hence, Mike's father replaced a greater fraction of the broken windows.
HURRYYYYYYY
Fill in the blank with the correct number.
A number is divisible by
divisible by four.
if the last two digits form a number
A) 3
B) 4
C) 6
D) Both 3 and 4
Answer:
D
Step-by-step explanation:
the answer is D: Both 3 and 4
1 point
Captionless Image
Answer:
uhhh ok
Step-by-step explanation:
Answer
That's simple the answer is
Step-by-step explanation: