Answer:
r=2
Step-by-step explanation:
3r-3=3
3r=6
r=6/3 6 divided by 3 is 2
r=2
Can I have brainliest!
Answer:
no
Step-by-step explanation:
cause you would have to do 3x3-3 so 3x3 = 9 - 3 = 6
There are 172 South American animals in the Springdale Zoo. That is 4 more than half the number of African animals in the zoo. How many African animals are there in the zoo?
Answer:
There are 90 African animals in the zoo.
Step-by-step explanation:
172/2=86
86+4=90
If point B is located at (0, 2) and is translated to point B’ with coordinates (1, -1), which translation did point B
Answer:
The answer is B
Step-by-step explanation:
none
Answer: 1 left, 3 down. (+1,-3)
Step-by-step explanation: Addition and subtraction
−n+(−3)+3n+5 I need helppp
Answer:
2n+2
Step-by-step explanation:
I hope this helps and can I have brainliest!
What is the square root of 7?
Answer:
2.64
Explanation:
Help me with this problem please
Answer:
-15
Step-by-step explanation:
3^2 - 3 x [(5^2 - 9) / 2 ]
9 - 3 x [(25 - 9) / 2]
9 - 3 x (16/2)
9 - 3 x 8
9 - 24
-15
Answer:
-15
Step-by-step explanation:
Order of Operations: BPEMDAS
1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction
Left to Right
Step 1: Write expression
3² - 3 · [(5² - 9) ÷ 2]
Step 2: Brackets Parenthesis Exponents
3² - 3 · [(25 - 9) ÷ 2]
Step 3: Brackets Parenthesis Subtraction
3² - 3 · [16 ÷ 2]
Step 4: Brackets Division
3² - 3 · 8
Step 5: Exponents
9 - 3 · 8
Step 6: Multiplication
9 - 24
Step 7: Subtraction
-15
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Which is an accurate conclusion regarding the system of equations below?
x + y = 4
y = -x + 4
A) There is no solution, since both equations have the same slope.
B) There are infinitely many solutions, since the same line represents both equations.
C) The only solution is the ordered pair (4, 0).
D) The only solution is the ordered pair (0, 4).
Answer: B) Infinitely many solutions; both equations are equivalent
==============================================================
Work Shown:
x+y = 4 ... start with the first equation
x + (-x+4) = 4 ... replace y with (-x+4)
x-x+4 = 4
0x+4 = 4
0+4 = 4
4 = 4 ... this is a true statement regardless of what x you pick
So there are infinitely many solutions. Each solution (x,y) is of the form (x,-x+4). All solutions fall on the line y = -x+4 which is equivalent to x+y = 4. Note how we add x to both sides.
Or you could start with x+y = 4 and subtract x from both sides to get y = -x+4. Either way, we're dealing with the same equation which is why they both graph out the same line.
i need help asap with geometry
Answer:
AC=17x+7
Step-by-step explanation:
AC=AB+BC
AC=3x-1+14x+8
AC=17x+7
[tex] \frac{2}{3 } x = -20[/tex]
This is the problem
Which could be the resulting equation when elimination is used to solve the given system of equations?
5a+5b-25
(-5a+5b-35
O 10a = 60
O 10b = 60
0-10 a = 60
-10b = 60
Answer:
10b=60 is correct
Step-by-step explanation:
Solve for x:
4(x + 3) + 5 = 73
Answer:
x=14
Step-by-step explanation:
4x + 12 plus 5 equals 73 combine like terms 12 + 5 = 17 4x+17 = 73 -17 from both sides 4x=56 divide 4 by both sides
Answer:
x = 14
Step-by-step explanation:
When you read this equation you gotta remember a few things, chill- you got this, work from left to right, and start with the parenthesis.
So out of those things I mentioned, I am pretty chill right now so let's get going! Work from left to right. Distributing the parenthesis.
[tex]4(x +3) + 5 = 73\\4x + 12 + 5 = 73[/tex]
Also keep in mind what you do to one side ya do to the other.
[tex]4x + 12 + 5 = 73\\4x + 17 = 73\\[/tex]
Subtract 17 from both sides.
[tex]4x = 56\\\\\frac{4x}{4} = x\\ \\\frac{56}{4} = 14[/tex]
x= 14
Sorry that was long but hopefully, it helped. Have a great day!
What numbers are perfect squares and which numbers are not? Why? 16, 20, 25, 100, 125, 144, 225, 10,000
Answer:
16, 25, 100, 144, 225, 10000 are perfect squares the rest are not. These are perfect squares because they can be multiplied by the same number and it'll equal it. For example 5×5=25 however there's no number that can be mutied by itself and equal 125.
What is the complementary angle to an angle measuring 25°?
And What is the supplementary angle to an angle measuring 31°.
Your fish tank holds 35 liters of water how much is that in millimeters
Answer: 35000
I hope this helps :) Can I get brainiest ?
Can someone please help me
If two angles, Are supplementary, then they are adjacent. Which diagram provides a counter example for the statement?
A counter example of for the statement is provided in the diagram attached below. Angles 4 and 5 are supplementary but they are not adjacent.
By definition, the sum of two angles that are supplementary to each other equals 180 degrees.In essence, the main criteria for two angles to be defined as supplementary angles is that their sum must equal 180 degrees.Referring to the image attached below, adjacent angles that lie on a straight line, like angles 1 and 2, are supplementary.
However, angles that are not adjacent to each other, for example, same-side interior angles like angle 4 and angle 5 are also supplementary.
Therefore, supplementary angles may not always be adjacent to each other. A counter example of for the statement is provided in the diagram attached below. Angles 4 and 5 are supplementary but they are not adjacent.
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let x represent each number. write an equation and solve for the variable.
five less than a number is eight
two more than three times a number is seventeen
Answer:
Hi there!
Your answer is;
1) x= 13
2) x= 5
Step-by-step explanation:
x-5 = 8
3x+2= 17
x-5=8
+5
x= 13
3x+2 = 17
-2
3x= 15
/3
x= 5
Hope this helps
rewrite 2 4/5 as an improper fraction
Answer:
14/5
Step-by-step explanation:
multiply 5 by 2 then the answer of the is added to the numerator which would equal 14 the put 14 on top of 5
The 2 4/5 rewritten as the improper fraction 14/5.
To rewrite 2 4/5 as an improper fraction, to convert the mixed number to a fraction.
First, multiply the whole number (2) by the denominator of the fraction (5) and add the numerator (4).
2 × 5 + 4 = 10 + 4 = 14
Next, write the sum as the numerator and keep the denominator unchanged:
14/5
To know more about fraction here
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Write 5.78 as a mixed number in simplest form.
Answer:
5 39/50
Step-by-step explanation:
Its in the hundreths so the fraction becomes 5 78/100 but if we divide both by 2 it becomes 5 39/50
a) work out the radius of the mercury, giving your answer as an ordinary number
b) work out the difference between the masses of jupiter and saturn
Answer:
a. 2,440 km
b. [tex] 1.33*10^{27} kg [/tex]
Step-by-step explanation:
a. Diameter of Mercury = [tex] 4.88*10^3 [/tex]
Radius of Mercury = ½ of its diameter = [tex] \frac{4.88*10^3}{2} [/tex]
Radius of Mercury = [tex] 2.44*10^3 [/tex]
To convert the radius to ordinary number, multiply 2.44 by 1,000.
Radius of Mercury as an ordinary number = [tex] 2.44*1,000 = 2,440 km [/tex]
b. Mass of Jupiter = [tex] 1.898*10^{27} kg [/tex]
Mass of Saturn = [tex] 5.68*10^{26} kg [/tex]
Difference between mass of Jupiter and mass of Saturn = [tex] 1.898*10^{27} - 5.68*10^{26} [/tex] (subtract 5.68 from 1.898 = 5.68. we would retain the largest exponent, which is raised to the lower of 27.)
[tex] = 1.33*10^{27} [/tex]
is -5 3/8 a rational or irrational number?
Help with mathematics
Can someone please help me:( , I’ll give you Brainliest
Answer: The answers are in the steps please look carefully.
Step-by-step explanation:
In this given situation, the length of RS plus the length of ST will equal to the length of RT because RS and ST lies on RT. We are given that RS is equal to 2x + 10 and ST is equal to x- 4 , this means that 2x + 10 plus x-4 will equal to 21 because the whole length of RT is 21.
A. Equation: (2x + 10 ) +(x -4) = 21
Now solve the equation for x.
2x + 10 + x -4 = 21 First combine like terms on the left side.
3x + 6 = 21 Subtract 6 from both sides
-6 -6
3x = 15 Divide both sides by 3
x = 5
The value of x is 5.
The length of RS is 2x +10 so since we know the value of x input it into the expression and solve for the real length.
2(5) + 10
10 + 10 = 20
ST is also x -4 so input the value for x and solve for the real length.
5 - 4 = 1
x = 5 , RS = 20 , ST = 1
B. The same applies to B.
RS plus ST has to Equal to RT.
We know the length of RS is 3x -16 and the length of ST is 4x -8 so it has to equal 60.
Equation: ( 3x -16) + (4x - 8) = 60 Solve for x
3x - 16 + 4x -8 = 60
7x - 24 = 60
+24 +24
7x = 84
x= 12
Input 12 in for x and solve for the real lengths
RS = 3(12) - 16
RS = 36 - 16
RS = 20
ST= 4(12) - 8
ST= 48 - 8
ST= 40
x = 12, RS = 20, ST = 40
what is the estimate of 2.75
40+6X = -7(4x+4)
Enter you answer
Answer:
x = -2
Step-by-step explanation:
40+6X = -7(4x+4)
Distribute
40 +6x = -28x -28
Add 28x to each side
40 + 6x +28x = -28x-28 +28x
40 + 34x = 28
Subtract 40 from each side
40 + 34x -40 = -28-40
34x = -68
Divide each side by 34
34x/34 = -68/34
x = -2
Step-by-step explanation:
[tex]40 + 6x = - 7(4x + 4) \\ 40 + 6x = - 28x - 28 \\ 6x + 28x = - 28 - 40 \\ 34x = - 68 \\ \\ x = - \frac{68}{34} \\ \\ x = - 2[/tex]
help....
I will mark as brainliest
Easy Do 7x8x8x8x8=3584 hope this helps
Mai is filling her fish tank. How many gallons of water will be in the fish tank after
3 minutes? *
Answer: 4.8
Step by step exclamation
Gina walked 0.8 miles before she started jogging at an average pace of 6 miles per hour. The equation d = 0.8 + 6t can be used to relate the total distance, d, in miles to the time, t, that Gina spent jogging. What are the independent and dependent variables?
Answer:
independent: tdependent: dStep-by-step explanation:
The way the equation is written, d is the dependent variable; t is the independent variable (on which d depends).
Answer:
the independent variable is t (time) and the dependent variable is d (distance)
Step-by-step explanation:
Time is called independent variable because time determines the distance and it stands alone, while distance is dependent variable because the length of distance is determined with the time, meaning when time (t) changes, the distance changes too.
for ex. if t=1, d= 0.8+6 (1) = 6.8
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Which relation is a function with range of
{-1, 0, 1, 4}?
Answer:
not a function because the 1 repeats if the same x repeats it is now a function
I need help!! Will mark brainliest if right!
Answer:
7
Step-by-step explanation:
Let the missing value of y in the table be a.
Since, the slope of the line through the ordered pairs (1, 3), (2, a) is 4.
[tex] slope = \frac{a - 3}{2 - 1} \\ \\ 4 = \frac{a - 3}{1} \\ \\ 4 = a - 3 \\ \\ 4 + 3 = a \\ \\ a = 7[/tex]
Thus, the missing value of y in the table is 7
Todd hired a handyman to replace some tiles in his bathroom. He paid him $24 per hour of work and $15 as a tip.
If the handyman worked for t hours, the amount he got paid is given by the expression:
A. t+24+15
B.24t+15t
C.24t+15
D.24(t+15)
If he worked for 3 hours, he would receive:
A.42$
B.87$
C.93$
D.117$
Answer:
1. C 24t+15
2. B. 87
Step-by-step explanation:
Since he gets $24 an hour, you have to multiply the number of hours by how much he gets paid, that would be the 24t part. Since he has a $15 added tip, you add that to the rest of the equation. He isn't getting $15 an hour, he just gets a flat tip, so you wouldn't multiply it by t. To get the second part, you have to plug in 3 for t since that is how many hours he worked. The equation would look like this: 24(3)+15. You get $87 for this.
