how do I solve -12+1/2x=-6
Answer:
x = 12
Step-by-step explanation:
First, eliminate the fractional coefficient 1/2, by multiplying all three terms by 2:
-24 + x = -12
Adding 24 to both sides isolates x: x = -12 + 24, or x = 12
I need help asap plz less than 10 minutes
Answer:
Im thinking maybe its 6 hours of sleep
Step-by-step explanation:
Well if you search up the amount a regular student needs to sleep so 7 hrs could get you 100 on the test so yeah 6.
13 POINTS FOR WHO EVER GETS IT RIGHT!!
Evaluate 2x - 4 when x=3
Evaluate -10b + 5 when b=4
Evaluate 1/2z + 6 when z=4
Evaluate 20 - 3w when w=2
Answer:
1.) 2(3)-4=6
2.) -10(4)+5=-35
3.)1/2(4)+6=8
4.) 20-3(2)=14
11 more than a number q is negative 15.
Answer: 11 + q = -15
Step-by-step explanation:
Answer: 11 + q = -15
What is the area of a 16 x 9 foot rectangle?
Answer:
144 square foot
Step-by-step explanation:
Area of rectangle: Length × breadth
Area of rectangle = 16 × 9
= 144 square foot
Write a system of equations to describe the situation below, solve, and write as an ordered pair (with number of months as x).
Two friends, Ann and Malia, are growing out their hair. They plan to cut it off at a certain point and donate it to a charity that makes wigs for people with cancer. Ann's hair is already 23 centimeters long and grows at a constant rate of 3 centimeters per month. Malia's hair is 27 centimeters and growing at a speed of 1 centimeter per month. If the girls get their hair cut on a certain day, they will have exactly the same length to donate. How long will their hair be? How long will that take?
Step-by-step explanation:
Wyzant
ASK
ALGEBRA 1
Christina B. asked • 11/16/20
please help me i've been stuck on this question forever
Write a system of equations to describe the situation below, solve, and write as an ordered pair (with number of months as x). Two friends, Ann and Malia, are growing out their hair. They plan to cut it off at a certain point and donate it to a charity that makes wigs for people with cancer. Ann's hair is already 23 centimeters long and grows at a constant rate of 3 centimeters per month. Malia's hair is 27 centimeters and growing at a speed of 1 centimeter per month. If the girls get their hair cut on a certain day, they will have exactly the same length to donate. How long will their hair be? How long will that take?
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Allen E. answered • 11/17/20
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Ann's hair length: y = 23 + 3x
Malia's hair length: y = 27 + x
Thus: 23 + 3x = 27 + x
23 + 2x = 27
2x = 4
x = 2
Ann's hair length: y = 23 + 2(3) = 29
Malia's Hair length: y = 27 + 2 = 29
Solution: (x, y) = (2, 29)
In 2 months both Ann's and Malia's hair will be 29 centimeters long.
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Erykah H. answered • 11/16/20
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Senior at the University of Illinois looking to help how I can!
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Lauren W. answered • 11/16/20
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Let's start with Ann's hair: 23 centimeters + 3 centimeters per month
Malia's hair: 27 centimeters + 1 centimeter per month
Now we can substitute the number of months for "x"
Ann's hair length = 23 + 3x
Malia's hair length = 27 +1x
We know that we want both girls to have the same hair length at the end so we can set these two equations as equal to each other:
23 + 3x = 27 + 1x Subtract 23 from both sides
3x = 4 + 1x Subtract 1x from both sides
2x = 4 Divide by 2
x=2 Now we know it will take 2 months for their hair to be the same length!
Let's plug that in to our original equations:
Ann's hair length = 23 + 3(2) = 29 centimeters
Malia's hair = 27 + 1(2) = 29 centimeters
It will take 2 months for the girls to grow their hair to the same length of 29 centimeters.
As ordered pairs, with x as the number of months, we can use the length of the girls hair as the y value.
At 0 months, Ann's hair is 23 cm and Malia's is 27 cm so the first ordered pairs are (0, 23) and (0, 27).
At 1 month, Ann's hair grows 3 cm and Malia's grows 1 cm so the second pairs are (1, 26) and (1, 28).
Finally, at 2 months Ann's hair is at 29 cm and so is Malia's so the final ordered pair is (2, 29) for both girls.
If you were to draw these equations on a graph, (2, 29) is where the lines would intersect.
A souvenir shop sells two sizes of American flags. Small flags cost $3.50 and large flags cost $6.50. On a recent day, 155 flags were sold and $683.50 was collected. How many flags of each size were sold that day?
Answer:
Small flags = 108
large flags= 47
Step-by-step explanation:
Step one:
given
let the number of small lag be x
and big flags be y
so
3.5x+6.5y= 683.5----------1
x+y=155------------------------2
Step two:
from eqn 2 x= 155-y
put x= 155-y in eqn 1
3.5(155-y)+6.5y= 683.5
542.5-3.5y+6.5y=683.5
collect like terms
3y=141
divide by 3
y= 141/3
y=47
Step three:
put y= 47 in eqn 2
x+47=155
x= 155-47
x=108
does anyone have remind ill give u a code
Answer:
no
Step-by-step explanation:
no
Please help fast for 10 points and bro list!! And it’s multiple choice!!! ANSWER ONLY IF YOU KNOW!!
Answer:
C. x - 5y - 30 = 0
Step-by-step explanation:
Y = x/5 - 30
y + 30 = x/5
you multiply both sides by 5
5y + 30 = x
you subtract x from both sides
- x + 5y + 30 = 0
which is the same as
x - 5y - 30 = 0
Given: WX bisects ZXY, ŽX =YX
Prove:ZXV=YXV
The required fill-in-the-blank below as:
1.) ZW ⊥ XW, ZW ⊥ WY, ∠ ZXV ≅ ∠ YXV | Given
2.) XV≅XV | Reflexive Property
3). SAS Triangle Congruence Property
What are congruent triangles?Two triangles are said to be congruent if their corresponding sides and angles are equal.
The given in question as:
WX bisects ZXY,
ŽX =YX
To prove:
△ZXV ≅ △YXV
1.) ZW ⊥ XW, ZW ⊥ WY, ∠ ZXV ≅ ∠ YXV | Given
2.) XV≅XV | Reflexive Property
According to SAS, two triangles are congruent if the two sides and the included angle of one triangle are equal to the corresponding sides and the included angle of the other triangle.
3). SAS Triangle Congruence Property
Hence, △ZXV ≅ △YXV
Thus, the required fill-in-the-blank above is in the solution.
Learn more about congruent triangles here:
brainly.com/question/4364353
#SPJ2
What is the value of x in the solution to this system of equations? 3x = 2y + 14
y = -6x + 18
-4n=100 what is the value for n
Please helppppp !!!!!!!!!!!! Answer correctly !!!!!!!!!!!!!!!! Marking brainliest !!!!!!!!!!!!!!!
Answer:
For every 7 miles Nolan drove, Alexander drove 1.
Step-by-step explanation:
They're going by multiples of 7. So 49 divided by 7 is 7 and 7 divided by 7 is 1
What is 288889 divide by 676767 please help
Answer:
0.42686626268 yeah that it
solve:3x-8y=-33
solve:9x+8y=29
show work please
Answer:
for the first one: x = -25/3 or -8.333333
for the second one: x = 29-8y/9
Step-by-step explanation:
for the first one:
add 8 to both sides 3x=-33 + 8
simplify -33+8 to -25
divide both sides by 3
which gives you -25/3 or 8.333333
for the second one:
subtract 8y from both sides 9x=29-8y
divide both sides by 9
which gives you x= 29-8y/9
A figure is shown.
What is the measure of ZA, in degrees?
Answer:
THE answer to this is 58.9 as it is the result of 180-121.1Please, I would appreciate it!
Also, if you can try to check our educational channel called Evimero Academy
Answer:
A = 58.9 degrees
Step-by-step explanation:
straight line angles add up to 180 degrees
121.1 + A = 180
A = 180 - 121.1
A = 58.9 degrees
Solve for x: x + 1 = 6*
Answer: 5
Step-by-step explanation: 6-1=5
Answer:
x=5
Step-by-step explanation:
To get the x alone, you would have to get the one away. To do that, you will have to get it to 0, by subtracting 1 from 6, making it five. Now x is alone like this: x=5
There's your answer
helppppppppppppp meeeeeeeeeeeeeeeeee plzzzzzzzzzzzzzzzzzz wrong or right?
Answer:
Yes you are right.
Step-by-step explanation:
Once you divide 128.25 by 3 you will get 42.75
Then you multiply 42.75 by 5 and you will get 213.75.
write the smallest possible four-digit number using the digits 5 9 3 and 8. PLEASE HELP ASAP!!! WILL MARK BRAINLIEST!!!!
Answer:
3589
Step-by-step explanation:
When trying to express the smallest number with these four digits, your answer is 3589.
Feel free to give brainliest.
Have an outstanding day!
Use the midpoint formula to find the midpoint of a line (2,9) and (4,8)
Answer:
hope this helps you!
Step-by-step explanation:
(3, 8.5) is the answer
How do i do this? Explain the answer and how it is done.
Answer:
4/9ths of a cup of sugar is needed for one cup of flour.
Step-by-step explanation:
To answer this you need to scale the number of cups of flour up from 3/4 to 1 that ratio would be 4/3 (multiplying a fraction by its own reciprocal will give you 1).
We can then simply take that ratio, and scale the sugar by the same amount:
1/3 * 4/3 = 4/9
If BFD and AFC are right angles and
m CFD = 72°, what is the value of x?
18
36
108
72
Answer:
72
Step-by-step explanation:
If BFD is a right angle and it gives you CFD that means that you do 90 - 72 to find CFB cause it 90 all togther
CFB = 18 deg
now it also tells us CFA is a 90 deg angle so we do the same thing
90 - 18 = 72
2) It cost $5 to send 6 packages through a certain shipping company. Consider the number of
packages per dollar.
2A *
a. Find the constant of proportionality for this situation
2B - Write your answer using the decimal form of the COP and do not
enter spaces when typing your equation.
b. Write an equation to represent the relationship.
Answer:
5 divided by 6 so the proportionality
Step-by-step explanation:
Answer:
2. the unit price is 1.2
6/5=1.2
Step-by-step explanation:
i really tried plese dont be mad
Please help me with this! :) and show me how! <3
Answer:
y=10 when x=7
Step-by-step explanation:
y=2x-4
y=10
Substitute y with "10": 10=2x-4
Add 4 on both sides: 14=2x
x=7
Answer:
substitute 10 for y in the equation y=2x-4
10=2x-4
2x=10+4
2x=6
divide both side by 2
x=3
A microwave originally costs $96, but is marked up to a price of $115.20. What is
the percent increase?
Answer:
20% increase
Step-by-step explanation:
I am just talking to answer but yes I am sure
Ein Würfel hat eine Oberfläche von 138 cm². Berechne die Kantenlänge a des Würfels in Millimeter.
Ich möchte Schritt für Schritt die Übung lösen, nicht nur das Ergebnis.
A cube has a surface of 138 cm ^ calculate the edge length of a design cube in multimeters
I want to solve the exercise step by step, not just the result.
sorry I don't know the answer but if you know here is the translation
Answer:
47.96 mm.
Step-by-step explanation:
Die Oberflache von einem Gesicht
= 138 / 6 = 23 cm^2.
Die Kantenlänge des Würfels
= √23
= 4.796 cm
= 47.96 mm.
A cake recipe requires 4 and one-half cups of flour to make 1 cake. How many cakes can be made by a baker who has 16 cups of flour?
A. 3
B. 4
C. 40
D. 72
Answer:
3 cakes
Step-by-step explanation:
Answer:
3.
Step-by-step explanation:
The real answer is 3.8 but since you cannot make .8 of a cake the answer is 3.
What is the probability that a randomly selected number from 15-27 is prime?
Answer: As we know that, Probability of an event =Number of favourable cases Number of total cases, We get, probability of choosing a prime number from 1 to 20 =820=25. Therefore, we get the probability of choosing a prime number from 1 to 20 as 25or 0.4.
The set of ordered pairs below represents a function.
{(–9, 1), (–5, 2), (0, 7), (1, 3), (6, –10)}
Josiah claims that the ordered pair (6, –10) can be replaced with any ordered pair and the set will still represent a function.
Select all ordered pairs that could be used to show that this claim is incorrect.
(–9, –6)
(1, 12)
(–10, –10)
(4, 7)
(–5, 1)
Given:
The set of ordered pairs below represents a function.
{(–9, 1), (–5, 2), (0, 7), (1, 3), (6, –10)}
Josiah claims that the ordered pair (6, –10) can be replaced with any ordered pair and the set will still represent a function.
To find:
All the ordered pairs that could be used to show that this claim is incorrect.
Solution:
We need to find the ordered pairs that can be replaced with (6,-10) and for which the set is not a function.
A relation is called function if there exist a unique output for each input.
If (-9,-6) is replaces with (6,-10), then the set has two outputs y=1 and y=-6 for x=-9. So, the claim is incorrect.
If (1,12) is replaces with (6,-10), then the set has two outputs y=12 and y=3 for x=1. So, the claim is incorrect.
If (-10,-10) is replaces with (6,-10), then there exist unique output for each input. So, the claim is correct.
If (4,7) is replaces with (6,-10), then there exist unique output for each input. So, the claim is correct.
If (-5,1) is replaces with (6,-10), then the set has two outputs y=1 and y=2 for x=-5. So, the claim is incorrect.
Therefore, the correct options are (a), (b) and (e).
The regular price of an item is $150. The item is on sale at a discount rate of 30%.
What is the sale price of the item?
Answer:
$105.00 is the answer subtract 45 $
Answer:
the item should cost $105
Step-by-step explanation:
its very simple just put 150 and it by 30% and its 105
150÷30%=105
