Answer:
3 animals
Step-by-step explanation:
combine like terms 6 + 2x = 15 + x -6 + x - 6 - x--------------------------
3x = 9
2. divide both sides by 3
3x/ 3 = 9/3x = 3There are 15 pens and 10 pencils in a box. One object is selected at random and then replaced. Another is the selected. Find the probability that:
1. The first object selected is a pen and the second is a pencil
2. One is a pen and the other is a pencil
3. Both are pencils
4. At least one is a pen
Four questions in total
Step-by-step explanation:
1. P(pen then pencil) = 15/25 × 10/25 = 3/5 × 2/5 = 6/25
2. P(pen then pencil) + P(pencil then pen) = 6/25 + 6/25 = 12/25
3. P(pencil then pencil) = 10/25 × 10/25 = 2/5 × 2/5 = 4/25
4. P(at least 1 pen) = 1 − P(no pen) = 1 − 4/25 = 21/25
Mickey is looking for his ties and finds out he have 20 shirts for every 4 ties if he has 30 shirts how many ties does he have
Answer:
Step-by-step explanation:
6 ties
Half of 20 is 10, and half of 4 is 2
Therefore, 4+2=6
Answer:
6 ties
Step-by-step explanation:
Please help urgent easy question,just no 8
Answer:
Ruby is 11. Tanya is 14.
Step-by-step explanation:
Let Ruby's age eight years ago be x.
Tanya's age eight years ago = 2x.
Ruby's age now = x + 8
Tanya's age now = 2x + 8
Total age = [tex]x+8+2x+8=25[/tex]
[tex]3x+16=25[/tex]
Subtract 16 from both sides:
[tex]3x+16-16=25-16[/tex]
[tex]3x=9[/tex]
Divide both sides by 3:
[tex]\frac{3x}{3} =\frac{9}{3}[/tex]
[tex]x=3[/tex]
Ruby's age now [tex]=x+8=3+8=11[/tex]
Tanya's age now [tex]=2x+8=2(3)+8=6+8=14[/tex]
Answer:
Tanya is 14; Ruby is 11.
Step-by-step explanation:
Let T represent Tanya's current age and let R represent Ruby's current age.
We know that their ages add up to 25. So:
[tex]T+R=25[/tex]
8 years ago, Tanya was twice as old as Ruby. In other words, Tanya's current age minus 8 is the same as Ruby's current age minus 8 times 2. So:
[tex]T-8=2(R-8)[/tex]
We have a system of equations. We can solve by substitution. From the first equation, subtract R from both sides:
[tex]T=25-R[/tex]
Substitute this into the second equation:
[tex](25-R)-8=2(R-8)[/tex]
On the left, subtract. On the right, distribute:
[tex]17-R=2R-16[/tex]
Add 16 to both sides. The right side cancels:
[tex]33-R=2R[/tex]
Add R to both sides. The left cancels:
[tex]33=3R[/tex]
Divide both sides by 3:
[tex]R=11[/tex]
So, Ruby is currently 11 years old.
So, Tanya is currently 25-11 or 14 years old.
Check:
8 years ago, Ruby was 11-8 or 3 years old.
8 years ago, Tanya is 14-8 or 6 years old.
Tanya's age of 6 is 2 times Ruby's age of 3 so our answer is correct.
These are pretty easy but can someone answer them for me so that i could go to sleep
Hey There!! (❁´◡`❁)
The answer to this is: Map Key. Because, Large scale maps are typically used to show site plans, local areas, neighborhoods, towns etc. ... A 'small' scale map is one in which a given part of the Earth is represented by a small area on the map. Small scale maps generally show less detail than large scale maps, but cover large parts of the Earth. The answer to this is: North. Like the wind rose, the compass rose was coincidentally designed in a fashion that resembled the rose flower. It helped to orient a map in the proper reading direction and gave the relative directions for certain points on the chart. Before compass roses were used on maps, lines were drawn from central points. The answer to this is: Map. Because, a Map help you to find places where you need to go. The answer to this is: Map Key. Because, A map usually has a legend, or key, that gives the scale of the map and explains what the various symbols represent. Some maps show relief, or changes in[tex]UsedLess[/tex] elevation. A common way to show relief is contour lines, also called topographic lines. The answer to this is: Blue. Because Blue Water is mostly associated with the color blue. Uncolored versions of these symbols can be found in Earth, Air, Fire and Water Symbols. The answer to this is: Help you find directions: Because, A compass rose, sometimes called a windrose or rose of the winds, is a figure on a compass, map, nautical chart, or monument used to display the orientation of the cardinal directions (north, east, south, and west) and their intermediate points. The answer to this is: A system of vertical and horizontal lines. A grid system on a map is usually square and is represented by drawn lines on the map creating those squares. The purpose of the grid system is to give each point in the map an identifier, an address, by which we can refer to it by. The answer to this is: Map key Title, date, author, and sources usually appear on the map though not always together. The map's title tells what the map is about, revealing the map's purpose and content. For example, a map might be titled “Political Map of the World” or “Battle of Gettysburg, 1863.”Hope It Helped!~
Sorry, this take me too long to type...
Good Luck With Your Assignment!~
And, Tell me if some the answer are wrong...
[tex]UsedLess[/tex]~ (●ˇ∀ˇ●)2x+4(7−x)
HELP me plz :c
Step-by-step explanation:
2x + 4(7-x)
= 2x + 28 -4x
= 28 - 2x
(3)(-10) = 1
What is the answer to this problem?
Answer:
-30
Step-by-step explanation:
3*-10 = -30
The negative rules are simply:
negative*negative = positive
negative*negative*negative = negative
Hope I helped
DaniElSabiondoName the property that is being demonstrated
8-2=-2+8
Commutative Property
Associative Property
Zero Product Property
Multiplication Property of -1
Deductive Reasoning Property
Answer:
Commutative propertyStep-by-step explanation:
The "Commutative Laws" say: when we add we can swap numbers over and still get the same answer.
8 - 2 = (8) + (-2) = (-2) + (8) = -2 + 8
1.44 x 106
In standard form
Answer: The way you would write this in standerd form would be like this one point fourty four times one hundered six. Let me know if this correct or not.
Step-by-step explanation:
How much salt is in a mixture containing 10 gallons of an 11% salt solution and 6 gallons of a 7% salt solution?
I think I can solve it but forming the equation is where I have problems.
Answer:
Step-by-step explanation:
There really isn't an equation because there isn't an unknown. If we create a table, the "equation" that you are talking about will be come apparent. Let's call the 2 solutions Sol 1 and Sol 2:
Gallons of solution * % salt = Gallons of salt
Sol 1
Sol 2
If we fill in this table according to the info we are given, we have 10 gallons of the 11% solution, and 6 gallons of the 7% solution, so
Gallons of solution * % salt = Gallons of salt
Sol 1 10 .11 = 1.1 gallons of salt
Sol 2 6 .07 = .42 gallons of salt
We multiply the Gallons of solution by the % salt to get the gallons of salt. There are 1.1 gallons of salt in solution 1 and .42 gallons of salt in solution 2, so in the mixture (which is 16 gallons) there is 1.1 + .42 gallons of salt, which is 1.52 gallons of salt.
Find the missing fraction.
3
1
10
Answer:
1/2
Step-by-step explanation:
Answer:
[tex] { \boxed{ \bold{ \huge{ { \boxed{ \sf{ \frac{1}{2} }}}}}}}[/tex]
Step-by-step explanation:
Let the missing fraction be x
[tex] \star \: \: \: \sf{x - \frac{3}{10} = \frac{1}{5}} [/tex]
Solve for x.
L.C.M of 1 and 10 = 10
[tex] \longmapsto{ \sf{ \frac{x \times 10 - 3}{10} = \frac{1}{5} }}[/tex]
[tex] \dashrightarrow{ \sf{ \frac{10x - 3}{10} = \frac{1}{5} }}[/tex]
Do cross multiplication
[tex] \longmapsto {\sf{5(10x - 3) = 10 \times 1}}[/tex]
Distribute 5 through the parentheses
[tex] \longmapsto{ \sf{50x - 15 = 10}}[/tex]
Move 15 to right hand side and change it's sign
[tex] \longmapsto{ \sf{50x = 10 + 15}}[/tex]
Add the numbers: 10 and 15
[tex] \longmapsto{ \sf{50x = 25}}[/tex]
Divide both sides by 50
[tex] \longmapsto{ \sf{ \frac{50x}{50} = \frac{25}{50}}} [/tex]
[tex] \longmapsto{ \purple{ \boxed{ \sf{ x = \frac{1}{2} }}}}[/tex]
The missing fraction is [tex] \sf{ \frac{1}{2} }[/tex]
Hope I helped!
Best regards! :D
~TheAnimeGirl
✨I don't understand ✨
Answer:
it is not a that all i know i am not a roket scientist in school LOL
Step-by-step explanation:
PLEASE ANSWER!!!!!
What is the definition of the Segment Addition?
What is the simplified form of (4m2n−3)2⋅12n138m20?
The simplified form of the given expression [(4m²n⁻³)² × 12n¹³]/(8m²⁰) will be 24n⁷/m¹⁶ so option (D) will be correct.
What is an expression?A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.
An expression is a mathematical proof of the equality of two mathematical expressions.
A statement expressing the equality of two mathematical expressions is known as an equation.
Given,
⇒ [(4m²n⁻³)² × 12n¹³]/(8m²⁰)
⇒ [(16m⁴n⁻⁶) × 12n¹³]/8m²⁰
⇒ 192m⁴n⁷/8m²⁰
⇒ 24n⁷/m¹⁶
Hence "The simplified form of the given expression [(4m²n⁻³)² × 12n¹³]/(8m²⁰) will be 24n⁷/m¹⁶".
To learn more about expression,
https://brainly.com/question/14083225
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The temperature falls 15º and then rises 18°
Answer:
3 degrees
Step-by-step explanation:
Answer:
3 more then the original number
Step-by-step explanation:
If c – a = b, which of the following statements is true?
A. a + b = c
B. c + b = a
C. a – c = b
D. b – c = a
If c – a = b, then true statement is A. a + b = c
What is commutative property?The commutative property states that the numbers on which we operate can be moved or swapped from their position without making any difference to the answer.
Now the given statement is,
c – a = b
adding a to both the the side
c – a + a = b + a
⇒ c = b + a
Using commutative property of addition we get,
a + b = b + a
Therefore, we get
⇒ c = a + b
Thus the true statement is A. a + b = c
To learn more about addition :
https://brainly.com/question/11066761
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Find the missing angles
I need help with the linear triple and any other ones would be helpful thank you
How would I start this question?
Btw I need to find the X and the Y
Answer:
you know the whole circle is 360 degrees
Step-by-step explanation:
Answer:
You know the corresponding angles, read explanation.
Step-by-step explanation:
top left is equal to bottom right
top right is equal to bottom left
top mid is equal to bottom mid
ALL amount to 360 degrees!
Find the x-intercept of the graph of the equation y = -2.65x + 25.
What does the x-intercept mean in terms of the situation?
Answer:
x=9.4
Step-by-step explanation:
x intercept is the point where the graph crosses the x axis and y always =0
-2.65x+25=0
-2.65x=-25
x=-25/-2.65
x=500/53
x=9.4
Which fraction is equal to the decimal 0.125?
I need help now!!!!!!!
Answer:
125/1000
Step-by-step explanation:
13% of $67.99 please help me please
Answer:
8.8387 (round to 8.84)
Step-by-step explanation:
To find the percentage of something, convert the percent into decimal form by moving the decimal two places to the left. In this case, the decimal form of 13% is 0.13
Then, multiply this decimal by the number you need to find the percentage of. In this case, that number is 67.99
The result of .13x67.99 is 8.8387.
Answer:
$8.84
Step-by-step explanation:
1.) Start with the 13%
2.) You have 13.
3.) Move the decimal point 2 places to the left.
4.) Now you have 0.13
5.) Multiply 0.13 and 67.99
6.) This equals $8.84
Which are valid rearrangements of F=95C+32? Select the two correct answers. response - incorrect 95C−F=32 F+95C+32=0 C=59(F−32) C=95(F−32) F−32=95C
Answer:
F+95C+32=0 & F−32=95C
Step-by-step explanation:
f=95c+32
Answer:
1st and the last one
Step-by-step explanation:
!!!!!!!!Pls hurry I need help to solve this !!!!!!!
(3m^2 – 5m + 2)^2
Answer: 9m^4- 30m^3 +37m^2 - 20m + 4
Step-by-step explanation:
(3m^2 -5m +2)^2 is the same as (3m^2 -5m +2)(3m^2 -5m +2)
Now apply the distributive property 3 times to solve.
3m^2(3m^2 -5m + 2) = 9m^4 - 15m^2 + 6m^2
-5m(3m^2 -5m+2) = -15m^3 +25m^2 -10m
2(3m^2 -5m +2) = 6m^2 - 10m + 4
Now add the solutions
(9m^4 - 15^2 + 6m^2) (-15m^3 + 25m^2 -10m)(6m^2 -10m +4) =
9m^4- 30m^3 +37m^2 - 20m + 4
pls help, this is timed
Answer:
x/2 + 7 = 13 is the answer
Answer: C
Step-by-step explanation: He sold half of his comic, meaning dividing whatever he had by 2. Buying 7 more and it will equal 13.
A passenger car weighs 4.5x10 units. Which unit of measure was used? grams ounces O pounds 0 tons
Answer:
C, pounds
Step-by-step explanation:
grams and ounces are automatically out because they just don't make sense, and a car can't weigh 4500 tons, it would be too heavy to drive.
hope this helps!!!
plz help will mark brainliest
Is 99 squared over 3 rational or irrational
5(-2n+6) = 70
Please Help me! This Is algebra
Answer:
the answe is -4
Step-by-step explanation:
first you distribute the five to the numbers in the paranthesis
5(-2n+6)
-10n+30=70.
than we subtract 30 from the 30 and 70
-10n=40
Next we divide by 10 to 40 and -10n
n=-4
the reason it negative is because if you divide a negative and a positive it always make a negative.
Can someone please do these questions or try to find the answers to them
Answer:if you look up the name of your work sheet into google and type in answer key after it will show up w the answer key
Step-by-step explanation:
Solve for t.
Reduce any fractions to lowest terms. Don't round your answer, and don't use mixed fractions.
12t – 2 < -5t + 36
Answer:
t < [tex]\frac{38}{17}[/tex]
Step-by-step explanation:
Given
12t - 2 < - 5t + 36 ( add 5t to both sides )
17t - 2 < 36 ( add 2 to both sides )
17t < 38 ( divide both sides by 17 )
t < [tex]\frac{38}{17}[/tex]
Answer:
Step-by-step explanation:
12t - 2 < -5t + 36
17t < 38
t < 38/17
An auto shop has 2 used vehicles for sale, 1 car and 1 truck. The truck is 3 years older than the car but 7 years older than one-half the car’s age. How many years old is the car?
Answer:
The car is 13 years old
Step-by-step explanation:
Lets say Car is x and the Truck is y, so the trucks age = x + 3 = y
Lets find the value of the Car or x
x + 3 = 1/2(x + 7)------- >
first we will divide x by 1/2 and 7 by 1/2, So...
x + 3 = (x / 1/2 + 7 / 1/2)------- >
x + 3 = 1/2x + 3.5------->
next Isolate variable x,
x + 1/2x = 3 + 3.5
1/2x = 6.5, So...
x = 13 and in turn, y = 13 + 3
:)