Answers
Answer:
According to logarithmic properties.... The right hand side can be written as
log base 7 (180/3).....which is log base 7 60
So according to the question cancel out the log base 7 from both sides....
Then we get 8r + 20 = 60
That is 8r = 40..
That is r = 5......
Therefore the value of r is 5
Related Questions
Explain how to write an equivalent expression using the
distributive property.
2(11 + y)
K
Answers
Answer: 22 + 2y
Step-by-step explanation:
2 x 11 = 22
2 x y = 2
2(11+y) = 22+2y
Answer:
22+2y
Step-by-step explanation:
2*11 + 2* y
22 + 2y
HTH
Katy inherited a savings account that was started by her grandfather 20 years ago. His investment can be modeled by the function
A(t) = 10,000(1.012)^t+ 20, where A(t) represents the value of the account, in dollars, t years after the inheritance. Which function is
equivalent to A(t)?
A)
A(t) = 10,000(1.012)^20
B)
A(t) = 10,000[(1.012)^t]^20
C)
A(t) = 10,000(1.012)^t (1.012)^20
D)
A(t) = 10,000[(1.012)^t + (1.012)^20]
Answers
Can someone tell me how to solve -3x-4y=-2 and y=2x-5 in elimination form!!!!!
Answers
-3x-8x+20=-2
-11x=-2-20
-11x=-22/-11
-11x/-11=-22/-11
x=2
At a sleepover, three friends ate of a pizza for a
snack the next day, the friends ate of the leftover
pizza What fraction of the whole pizza was not eaten?
Answers
Answer:
none
Step-by-step explanation:
if they ate it all as leftovers then there was no pizza left uneaten
Complete the table using the equation y = 6x +3.
Answers
If x is 1, you’d have y = 6(1) + 3, so y = 9
If x is 2, you’d have y = 6(2) + 3, so y = 15
If they give you y and you need to solve for x, your equation can be changed to solve for x
y = 6x + 3
Subtract 3 from both sides
y-3 = 6x
Divide both sides by 6
x = (y - 3)/6
So if y is 21
x = (21-3)/6
x = (18)/6
x = 3
Hope that helps
Could anyone mind helping I have until 9
Answers
Max or Min: Min
Axis of symmetry would go through 1 on the X-axis.
Number of zeros: 2
Roots: (-2,0) and (4,0)
Domain: All real numbers
Range: Y is greater than or equal to -8
what is V(0)=80(0.4)t
Answers
PLSSS HELP MEE SHOW UR WORK!!
Answers
Answer:
(-3, 13)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
Terms/CoefficientsCoordinates (x, y)Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
y = -4x + 1
11y = x + 146
Step 2: Solve for x
Substitution
Substitute in y: 11(-4x + 1) = x + 146Distribute 11: -44x + 11 = x + 146[Addition Property of Equality] Add 44x on both sides: 11 = 45x + 146[Subtraction Property of Equality] Subtract 146 on both sides: -135 = 45x[Division Property of Equality] Divide 45 on both sides: -3 = xRewrite/Rearrange: x = -3Step 3: Solve for y
Define original equation: y = -4x + 1Substitute in x: y = -4(-3) + 1Multiply: y = 12 + 1Add: y = 13A worker spent 3/4 of his monthly salary on food and 1/2 of the remainder on rent if he has 1500 left how much does he earn in a month
Answers
Answer:
$4000
Step-by-step explanation:
1500 × 2 =3000
3000 × ³/4 = 4000
27 POINTS!!!!!!!!!!!!! PLEASE!!!!
Answers
Answer:
Step-by-step explanation:
In what case does 8 + 8 = 4?
The correct answer, = 20 points and brainliest.
Please answer if you know the answer
Good luck!!!
Answers
Step-by-step explanation:
8:00 + 8:00 = 16:00 = 4:00PM
I need answers I’ll cash app 10 dollars
Answers
1. 0 > 3x - 3 - 6
0 > 3x -9
9 > 3x
3 > x
It would be a closed circle starting from 3 going to the right.
2. 4x + 1 - 1 >/ -8
4x >/ -8
x >/ -2
It would be an open circle starting from -2 going to the right.
3. -1 </ 2n + 4 - 5
-1 </ 2n -1
0 </ 2n
Undefined.
4. -6 > 5n + 5 + 4
-6 > 5n + 9
-15 > 5n
-3 > n
It would be a closed circle going to the right
The record time for the girls' 50-meter free style swimming competition is 24.49 seconds. Camilla has been training and wants to swim the 50-meter free style in less time. What are some possible times Camilla would have to swim to break the current record? Solve this problem any way you choose.
Answers
Answer:
[tex]x < 24.49[/tex]
Step-by-step explanation:
Given
[tex]Record = 24.49[/tex]
Required
Possible time to break the record
Since no option is given to select from. I will answer the question using inequalities
For her to break the record, she must swim at a time less than 24.49.
i.e. 24.48, 24.00, 23, 22.50, etc...
Represent the time with x.
So, the inequality is:
[tex]x < 24.49[/tex]
3y=4.8 (I'm so confused it isn't even funny)
Answers
Answer:
y = 1.6
Step-by-step explanation:
4.8/3=1.6
3*1.6=4.8
Answer:
[tex]y = 1.6[/tex]
Step-by-step explanation:
[tex]3y = 4.8[/tex]
Use inverse operations to solve this problem. Inverse operations is a method of solving a linear (and in some cases quadratic) equation. This method has one do the same operations to both sides such that it cancels out the operations done to the variable, and hence, it leaves one with the solution.
In this case, all one has to do is divide both sides by the coefficient of the varibale (y).
[tex]3y = 4.8[/tex]
÷[tex]3[/tex]
[tex]y = 1.6[/tex]
PLS HELP I WILL GIVE BRIANLY
A box has a certain number of blue,white,red and yellow marbles. 2/5 of the marbles are blue. The number of white, red and yellow marbles in the box are equal. Which of the following could be the number of marbles in the box?
Answers
what is the question again?
negitive 17plus n over 5 =33 what is n
Answers
Answer:
250
Step-by-step explanation:
-17+n/5=33
n/5=33-(-17)
n/5=33+17
n/5=50
n=50*5
n=250
n=182
Step by Step Explanation:
The equation we would start out with is:
[tex] \frac{ - 17 + n}{5} = 33[/tex]
From here, we need to multiply both sides by 5. This would create an equation of -17+n=165, as we canceled out the 5.
Then, you need to add 17 to both sides to isolate the variable. This would make the equation n=182, our final answer.
please help i have to turn in in 8 mins....thanks :)
Answers
6√3
Step-by-step explanation:
6 is x. side across from right angle (12) is 2x. so 6x2 to get 12. missing side is x√3. so 6√3
Answer:
6√3
Step-by-step explanation:
using the pythagorean theorem you can plug in the numbers to get √(12^2 - 6^2) = √(144-36) = √108 = 6√3.
Select the correct answer.
Which expression is equivalent to x + y+ x + y +30+5)?
A. 2x + 5y+ 5
B. 2x + y + 30
C. 2x + 5y + 15
D.2x + 3y + 10
Answers
Answer:
Step-by-step explanation:
Like terms have same variable with same exponent. Combine the like terms.
x + x = 2x {Just add the coefficient}
x + y + x +y + 30 + 5 = x +x + y + y + 30 + 5
= 2x + 2y + 35
The graph of y = f(x) is shown.
a) Find f(0)
4-
3.
b) Give the roots of f(x) = 0
Answers
Answer:
f(0) = 2
Roots are;
-2 and -1
Step-by-step explanation:
F(0) simply refers to the y-values when x = 0
This is the point at which the graph crosses the y-axis
the value here is 2
To
find the roots of f(x) , we simply find the points at which the plot crosses the x-axis
we have this at x = -2 and x = -1
These are what represents the roots of the equation
HELP! Need to finish this or my dad will go nuts.
Answers
Answer:
The answer is 6.
Step-by-step explanation:
So basically, since we know that 4 x 4 is 16, then all we have to do is multiply 1 1/2 by 4. 1 1/2 times 4 equals 6.
Answer:
6 pages
Step-by-step explanation:
all you have to do is multiply 1 1/2 by 4 if 4x4 =16
0. The temperature drops 2 degrees per hour for 3 hours. Which of the
following expressions does NOT describe this change in temperature?
a. -2 + (-2) + (-2)
b. 2(3)
d. -2 - (2) - (2)
c. -2(3)
Answers
Explanation: c is the only correct expression while the rest aren’t
Answer:
B. 2(3)
Step-by-step explanation:
The other 3 all shows decreasing of 2 three times. 2(3) would be increasing.
6(x+8.5)=123
(equation)
Answers
Explanation:
Expand - 6x + 51 = 123
6x = 72
x = 12
Answer:
12
Step-by-step explanation:
6(x+8.5)=123
=> 6x + 51 = 123
=> 6x = 123 - 51
=> 6x = 72
[tex] = > x = \frac{72}{6} [/tex]
=> x = 12 (Ans)
Please help. Cesium-137 has a half-life of 30 years. Identify the amount of cesium-137 left from 150 milligram sample after 120 years.
1.325 mg
0.9375 mg
9.3750 mg
1.097 mg
Answers
Answer:
1.325 mg
have a good day :)
Answer:
9.3750 mg
Step-by-step explanation:
Which of the following situations can be represented by
C = 10 + 0.44n?
Your answer:
A. The total cost at the grocery store for a cake that cost $10 and n bananas that cost $0.44 each.
B. The total cost of 10 soft drinks that cost $0.44 each.
C. The height of a plant after n days that was 10 centimeters tall and it grew 4.4 milimeters a day.
D. Not here
Answers
Answer:
A and C
Step-by-step explanation:
What is the value of x in the diagram?
(x + 45)
(x + 105)
Answers
if the addition if (X+45)° and (X+105)° equal 180°
due to they are a co- interior angles.
then X+45+X+105 = 180°
2X+150 = 180°
2X = 30
X = 15°
PLEASE HURRY~ DUE SOON
You ride your bicycle along the outer edge of the park. Then you take a shortcut back to where you started. Find the length of the shortcut. Round your answer to the nearest tenth.
Answers:
100m
60m
116.6m
160m
Answers
Answer:
116.6
Step-by-step explanation:
Answer:
116.6
Step-by-step explanation:
To solve this equation you would need to use the pythagorean theorem. The pythagorean theorem is [tex]a^{2} +b^{2}= c^{2}[/tex] where a and b are lengths of the triangle and c is the hypotenuse (the longest side of a triangle) in this case, the short cut.
First, you would substitute values into the equation:
[tex]100^{2}+60^{2}= c^{2}[/tex]
Then, you would multiply out the squares:
[tex]10,000+3600=c^2[/tex]
Add the numbers together:
[tex]13600=c^2[/tex]
Take the square root of both sides to get the answer:
[tex]c=116.619037897[/tex]
Then round to the nearest tenth to get the answer: c=116.6
Plz, HELP me with this question!
Answers
Answer:
2/3
Step-by-step explanation:
There is a 2 in 3 chance the pointer will not land on c or d.
HELPPP MEEEEEEE
with this math
Answers
Answer:
it should be 1/8
Step-by-step explanation:
The radius of a circle is 5 units what's the diameter of a circle?
Answers
Answer:
10
Step-by-step explanation:
The radius is half of the diameter, so 5 * 2 = 10
Answer:
diameter=2×radius=2×5=10units
Solve for in the diagram below.
110°
K
(8x + 30)
=
Answers
Answer:
8x+30=110
8x=110-30
8x=80
x=80/8
x= 10
Step-by-step explanation: