Answer:
Kenneth: 12 years old
Randy: 48 years old
Step-by-step explanation:
For this problem, we can use system of equations to solve. Let's use r for Randy and k for Kenneth.
Equation 1
r=4k
This equation comes from the first part, where Randy is four times as old as Kenneth.
Equation 2
r=36+k
This equation comes from the second part, where Randy is 36 years older than Kenneth.
Since we have r=, we can use substitution method.
4k=36+k [subtract both sides by k]
3k=36 [divide both sides by 3]
k=12
Now that we have found k, we can plug that into any equation to find r.
r=4(12) [multiply]
r=48
Now, we know that Randy is 48 years old and Kenneth is 12 years old.
37.67 x 70.71 (please show the work) but I need u to explain with numbers
1. Which conditional statement has a true truth value? a. If a shape is a quadrilateral, then it is a square. b. If the sum of two numbers is positive, then both the addends are positive. c. If an angle has a measure of 180 degrees, then it is an acute angle. d. If a figure is a square, then it has four sides.
Answer:
B I believe
Step-by-step explanation:
PLz hurry i really need this okay
Answer:
Step-by-step explanation:
perfect squares=9,64,49
non perfect squares=24,88,6
Please help i will mark you five stars and give you 20 points
Answer:
Reflection
Step-by-step explanation:
What is the solution to this equation?
10 - 3x + 8x = 25
O A. x=-3
O B. x = 5
O c. x = -5
D. x = 3
Answer:
x=3
Step-by-step explanation:
10-3x+8x=25
-10 -10
-3x+8x= 15
5x=15
5x/5=15/5
x=3
Balloon A is released 5 feet above the ground. Balloon B is released at ground level. Both balloons rise at a constant rate. Which situation can you represent using an equation of the form y = kx? Explain.
Answer:
The situation of balloon B
Step-by-step explanation:
Balloon A is released 5 feet above the ground and our ground level be 0 feet. Let k be the rate at which it rises and t the time it takes to rise. Its height y, above the ground after time x is y = kt + 5
For Balloon B since it is released at ground level at which ground level is taken as 0 feet, let t be the time it takes to rise above the ground and k the rate at which it rises above the ground. Its height y above the ground after tie x is y = kt
Since the expression for Balloon B is y = kt and the expression for Balloon A is y = kt + 5, only the situation of Balloon B can be expressed in the form y = kx.
This is because the rate of rise of Balloon B follows a direct proportionality while the rate of rise of Balloon follow a joint proportionality since it starts from a point other than ground level.
please help w qn 3!!
Answer:
a) 67.8m
b) 36.8m
(both answers rounded off to 3 s.f.)
Step-by-step explanation:
Please see the attached pictures for full solution.
*Instead of rewriting PF to QF +43 in part (a), you could also leave PF as it is and rewrite QF as PF -43 after the line I labelled as equation 2. The working would be about the same, just that you would not need to add 43 again in picture 3 because we would be working with PF. (PF would be factorised out instead)
Please help. P.S show your work Thank you :)
Answer:
≠
Step-by-step explanation:
10 * 7 - 3 ____ 10 * (7 - 3)
70 - 3 ____ 10 * (7 - 3)
67 ____ 10 * (7 - 3)
67 ____ 10 * 4
67 ____ 40
67 ≠ 40
Answer is ≠
this is because of the order you do a problem.
1. P - paranthesis
2. E - exponents
3. MD - multiplication division (whatever comes first)
4. AS - addition subtraction (whatever comes first)
There are no paranthesis in the first one so you multiply first.
There are paranthesis in the second one so you add first.
That gives you a different answer for each making it unequal.
47.469 rounded to the nearest foot
Answer: 47 ft
Step-by-step explanation:
PLEASE I NEED THE ANSWER LIKE IN THE NEXT 10 MINS!!!!!
What is f(-2) of the function given below? F(x)=3x^2-4x+1
Answer: F=(x-1) (3x-1/x =21
Step-by-step explanation: Fx/x=3x^2-4x+1/x
A line passes through the points (3,7) and (5,19) Part A: find the slope
Part B: what is a possible equation of a line parallel to the line through (3,7) and (5,19)
Y=mx + b
Answer:
The slope is 6. For the first line you could do y=6x+7, and the line parallel to that could be y= 6x+3
Step-by-step explanation:
For it to be parallel the slopes have to be the same and the y intercepts (b) have to be different. And I found the slope by doing y-y/x-x
plug in you numbers 19-7/5-3= 12/2 = 6
4. Find the range of the relation y = 3x + 1 for the domain -1,0,3).
Answer:
all is pictured and shown
A submarine that is 245 feet below sea level descends 83 feet and then ascends 103 feet. What is the location of the submarine compared to sea level?
Answer:
225 feet
Step-by-step explanation:
-245 plus -83 then add 103
hellpppp!!!!!!!!!!!!
At a supermarket, a 6-ounce bottle of
Usalad dressing costs $1.56. A 14-ounce bottle costs $3.36. A 20-ounce
bottle costs $5.60. Which bottle has the lowest cost per ounce?
MP.1
Answer:
The 14 oz bottle has the lowest cost per ounce.
Step-by-step explanation:
$3.36/14
Write the expression using a positive exponent 8^-5
Answer:
1/8^5 is the simplified answer
Step-by-step explanation:
10. The area of a square lot is 900 square meters. What is the perimeter of the tot, in maters?
Answer: 9000
Step-by-step explanation:
Study the Function
F(x)=4x+9
Evaluate for f(7)
Answer:
37
Step-by-step explanation:
Step 1:
x = 7
Step 2:
4 ( 7 ) + 9
Step 3:
28 + 9
Answer:
37
Hope This Helps :)
Geometry Basics Test
A polygon is said to be regular if all of its sides are the same length. Find the perimeter of the regular octagon
whose vertices are as follows.
(-2,-4), (1,0), (1,5), (-2,9), (-7,9), (-10,5), (-10,0), (-7,-4)
(1 point)
| units
Basic
7
8
9
Answer:
P=40
Step-by-step explanation:
find the distance between each vertices:
between the following points to find the length of each sides, octagon has 8 sides , since it is regular pentagon the distance between each vertices =5
the length of each side of octagon=5
to check :d=√(x2-x1)²+(y2-y1)²
(-2,-4) and (1,0) , d=√[(1-(-2)]²+(0+4)² =√3²+4², d=5
(1,0) and (1,5) , d= 5
(1,5) and (-2,9) , d=5
(-2,9) and (-7,9) , d=5
(-7,9) and (-10,5) , d=5
(-10,5) and(-10,0) , d=5
(-10,0) and(-7,-4), d= 5
(-7,-4) and (-2,-4), d=5
perimeter of octagon = 8a ( a is the length of the side)
p=8(5)
P=40
solve this please.
[tex]3(m - 5) + 11 = - 85[/tex]
Answer:
Bro this some alien hyroglyphics
Step-by-step explanation:
Answer:
m = - 27
Step-by-step explanation:
Given
3(m - 5) + 11 = - 85 ← distribute and simplify left side
3m - 15 + 11 = - 85
3m - 4 = - 85 ( add 4 to both sides )
3m = - 81 ( divide both sides by 3 )
m = - 27
Solve the equation 5x+(-2)=6x+4
Answer:
x = -6
Step-by-step explanation:
Step 1: Write out equation
5x + (-2) = 6x + 4
Step 2: Simplify
5x - 2 = 6x + 4
Step 3: Subtract 5x on both sides
-2 = x + 4
Step 4: Subtract 4 on both sides
-6 = x
Step 5: Rewrite
x = -6
Answer:
x = -6
Step-by-step explanation:
[tex]5x+(-2)=6x+4[/tex]
Open the parenthesis
[tex]+(-2) =-2\\\\5x -2 =6x+4[/tex]
Collect like terms and simplify
[tex]5x-6x =4+2\\-x =6[/tex]
Multiply through by -1
[tex]-1(-x)=-1(6)\\\\x = -6[/tex]
Find the perimeter of the quadrillateral. If x=2, the perimeter is ___ inches.
Answer:
129 inches
Step-by-step explanation:
31+4(2²)+8(2)+7(2)+30+3(2²)-5(2)+20=
31+16+16+14+30+12-10+20=
129 inches
Answer:
129 inches
Step-by-step explanation:
got it right on edgenuity
Please answer this !I will mark it the brainiest!!
Answer:
The answer would be B
Step-by-step explanation:
The pre-image is...
What does a pre image mean
Answer:
i think it means pre image (plural pre images) (mathematics) For a given function, the set of all elements of the domain that are mapped into a given subset of the codomain; (formally) given a function ƒ : X → Y and a subset B ⊆ Y, the set ƒ−1(B) = {x ∈ X : ƒ(x) ∈ B}. The pre image of under the function is the set .
Step-by-step explanation:
Answer:
I forgot what the letter was for this option but The Pre image is a geometric shape BEFORE a transformation occurs ( I think that's option B but u should read it to be sure)
Step-by-step explanation:
Hope this helps I was kinda paying attention
Leah scored a total of 18 points in the basketball game, and she scored p points in the second half of the game. Write an expression to determine the number of points she scored in the first half of the game. Then, find the number of points she scored in the first half of the game if she scored 2 points in the second half of the game.
Answer: 16 points for the first half game
Step-by-step explanation:
1st half = ?
2nd half= p
Total = 18
The expressions to get the score of the 1st game is 18 -p
If she scored 2points in the second half game that means p=2
To get the 1st half of the game you should do 18-2=16
Use the order of
operations to evaluate
the expression
(-8X14)-(-2X-10)
Answer:
the order of operations is .called BODMAS rule
B.brackets
O.of
D.division
M.multiplication
A.addition
S.subtraction
Step-by-step explanation:
= (-112)-(20)
= -132
Find the measure of an angle if its measure is 26 degrees more than three times its compliment?
16
141
74
42
The complement = x
The angle we are finding = 3x + 26
Complementary angles are angles that add up to 90 degrees.
90 = x + 3x + 26
Combine like terms
90 = 4x + 26
Subtract 26 from both sides
64 = 4x
Divide both sides by 4
16 = x
The angle we are trying to find = 3(16) + 26 = 48 + 26 = 74 degrees
A water pail in your backyard has a small hole in it. You notice that it has drained a total of 0.5 liter in 4 days. What is the average change in water volume each day?
Answer:-0.125
Step-by-step explanation:
The average change in water volume is -0.125 liter per day.
3a+8 7 anyone know the answer?
Answer:
if you put 3a+87 the answer is 3(a+29)... but if u put 3a+ 8/7 the answer is 1/7*(21a+8)
Step-by-step explanation:
What number needs to be added to 5 and 3 so that the ratio of the first number to
the second becomes 3:2?