Answer:
the answers is
(-2),(-8)
Ayuda con este problema de ecuaciones de primer grado
Answer:
I can't understand your handwriting
Let’s try this one again.. I am putting 70 points up! Please help. Last problem that I NEED.
Your account has $235 in it before you write a check for $5, write a check for $62, and make a deposit of $30. What is the new balance?
The selling price of a refrigerator, is $638.00. If the markup is 10% of the dealer's cost, what is the dealer's cost of the refrigerator?
Answer:
$421.74
Step-by-step explanation:
Given that x = 6 and y = 4 , find
3x + y
Hello :D
x = 6
y = 4
3x + y
3x = 18
y = 4
18 + 4 = 22
Hope this helps
If a18-a12=24.Find d.
a18 − a12 = 24 == 24
d == 24
I hope this is correct and helps..
plzz i need help i cant get it so im begin
Step-by-step explanation:
with what do you need help?
I hope we can help..
what is the solution to -7+h=12?
please explain how you got the answer and if you get it right ill give brainlyest! ALSO 20 POINTS!!
Answer:
h = 19
Step-by-step explanation:
-7 + h = 12
=> h = 12 + 7 [Transferring (-7) to RHS by changing its sign]
=> h = 19
Answer:
h = 19
Step-by-step explanation:
[tex]-7+h=12[/tex]
Since -7 is a negative and we want to undo the number, add 7 to -7 and 12
[tex]h=12+7[/tex]
[tex]h=19[/tex]
What number can replace c
Answer:
3
Step-by-step explanation:
c 2 +d3, if c = 8 and d=-3
A firefighter training course is taking place in a high-rise building. The high-rise building where they practice is 48 stories high. If the emergency happens on the top floor and the firefighters have already gone 29 stories, how many stories do they still need to go?
Answer:
29 stories - 49 stories = number of stories they need to go
28 - 49 = 21
the answer is 21
they have 21 more stories to go
The number of stories they still need to go is 19 stories.
It is given that building is 48 stories high and when the emergency happens they have already gone to 29 stories.
We have to calculate the number of stories they still need to go.
What will be the value, if we subtract 2 from 4 ?
The value after subtracting will be 4 - 2 = 2.
As per the question ,
The total number of stories in building = 48
When emergency happens they have already gone 29 stories.
So ,
The number of stories they still need to go after the emergency happens can be calculated as ;
48-29 = 19
Thus , they still need to go 19 stories.
To learn more about subtraction click here ,
https://brainly.com/question/220101
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AC = 3x + 3, BC = 12, and AB = x + 5. Find AC
As, We're given with,
AB = x + 5, BC = 12, AC = 3x + 3
By segment addition postulate,
⇒AB + BC = AC
⇒x + 5 + 12 = 3x + 3
⇒5 + 12 - 3 = 3x - x
⇒17 - 3 = 2x
⇒14 = 2x
⇒2x = 14
⇒ x = 14/2
⇒ x = 7
Now, finding the measure of AC,
⇒Measure of AC = 3x + 3
= 3(7)+ 3
= 3 × 7 + 3
= 21 + 3
= 24
∴ The measure of AC is 24 ...!
▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄Answer:
AC = 24
Step-by-step explanation:
Collinear points all lie on the same line, so point A, B, and C are on one line.
So, Ab + BC = AC
AB + BC = AC
x + 5 + 12 = 3x + 3
x + 17 = 3x + 3
-3 -3
------------------------
x + 14 = 3x
-x -x
------------------------
14 = 2x
/2 /2
------------------------
7 = x
AC = 3x + 3
= 3 (7) + 3
= 21 + 3
= 24
AC = 24
Combine like terms to create an equivalent expression.
Answer:
[tex]\frac{3}{2}[/tex] y - 5
Step-by-step explanation:
Given
- [tex]\frac{1}{2}[/tex] (- 3y + 10) ← multiply each term in the parenthesis by - [tex]\frac{1}{2}[/tex]
= [tex]\frac{3}{2}[/tex] y - 5
b=1/4af solve for a
if u could answer this as fast as possible that would be great
Answer:
b/(1/4)(f)=a
Step-by-step explanation:
b=1/4af
b/(1/4)(f)=a
Answer:
[tex]b = \frac{1}{4} \times a \times f \\ multiply \: both \: side \: by \: \frac{4}{f} \\ b \frac{4}{f} = \frac{1}{4}a \times f \times \frac{4}{f} \\ \frac{b \times 4}{f} = a \\ thank \: you[/tex]
why is x^4 the largest perfect square of x^5
Answer:
Step-by-step explanation:
Because x^5 has 5 members. When you group them into 2 members each, there is one x left over. This is most easily seen if you try it with numbers.
The clearest way is to pick something that is not a perfect square to start with.
6 * 6 * 6 * 6 * 6
6^2 is a perfect square. It is grouped into 2 groups. Each one is a 6
So 6^2 = 36. 36 is a perfect square.
You should note that 6 ^3 is not a perfect square. One of the 6s is unmatched and you get a fraction when you square root 6^3.
6 * 6 * 6 = 216. The square root of 216 is 14.697... which goes on forever.
6^4 is a perfect square.
6^4 = 1296 The square root of 1296 is 36.
• Persevere in Problem Solving the difference between the solutions to the equation x = a is 30. What is a? Show that your answer is correct.
Answer: a=225
Step-by-step explanation:
[tex]a > 0\\\\x^2=a\\\\x^2-a=0\\\\(x-\sqrt{a} )(x+\sqrt{a}) =0\\\\\sqrt{a} -(-\sqrt{a} )=30\\\\2\sqrt{a} =30\\\\\sqrt{a} 15\\\\a=15^2\\\\a=225\\\\Proof:\\\sqrt{225} -(-\sqrt{225} )=2*\sqrt{225} =2*15=30\\\\[/tex]
s = ut +1at^2, solve for a
[tex]s = ut + \frac{1}{2} a {t}^{2} \\ \\ \frac{1}{2} a {t}^{2} = s - ut \\ \\ a = (s - ut) \: \div (\frac{1}{2} {t}^{2}) \\ \\ a = (s - ut) \: \times ( \frac{2}{ {t}^{2} } ) \\ \\ a = \frac{2s - 2ut}{{t}^{2}} \\ \\ a = \frac{2s}{{t}^{2}} - \frac{2ut}{{t}^{2}} \\ \\ \\ a = \frac{2s}{{t}^{2}} - \frac{2u}{t} [/tex]
I hope I helped you^_^
Aaron has 15 books to put on shelves. He wants to put the same number of books on each shelf. Which of the following lists shows all of the choices for how many books to put on each shelf?
Answer:
3 books on each shelf
5 books on each shelf
Step-by-step explanation:
Factor Completely.
25z^2 − 36w^2
Answer:
(5z-6w)(5z+6w)
Step-by-step explanation:
Hi there!
We're given the expression 25z²-36w² and we want to factor it.
The expression written as a difference of squares. The difference of squares is given as a²-b²=(a-b)(a+b)
Let's label the values of what is a² and b², and then try to determine what a and b are from that information
[tex]a^{2}=25z^2\\b^2=36w^2[/tex]
Alright then! Let's square root both sides to find what a and b are
[tex]\sqrt{a^2}=\sqrt{25z^2[/tex]
Which then means:
a=5z
And then for b:
[tex]\sqrt{b^2}=\sqrt{36w^2}[/tex]
b=6w
Now substitute those values into the formula
a²-b² = (a-b)(a+b)
[tex]25z^{2}-36w^2=(5z-6w)(5z+6w)[/tex]
Hope this helps!
Please tell me how to solve this i just started geometry as a freshman and i don’t understand please!!!
Answer:
80 degrees
Step-by-step explanation:
The whole angle EBD is 115 degrees, and angle DBG is 35 degrees, therefore
angle GBE is 115-35=80 degrees
Think about it like this, DBG and GBE need to add up to the angle measure of EBD, in other words 35 + GBE = 115
Answer:
Step-by-step explanation:
<DBE = <DBG + <GBE
<DBE = 115 Given
<DBG = 35 Given
<GBE = ?
You have to know a couple of things before you start.
All the angles meet at B. Notice B is the center letter. the top given is the equation you need to solve the question.115 = <GBE + 35 Subtract 35 from both sides.
115 - 35 = <GBE
80 = <GBE
For a moving object, the force acting on the object varies directly with the objects acceleration. When a force of 45 N acts on a certain object, the acceleration of the object is 9 m/s2. If the force is changed to 20 N, what will be the acceleration of the object.
Answer:
4m/s^2
Step-by-step explanation:
if 45N =9m/s^2
20N= x
20N*9m/S^2/45N
=4m/s^2
Which table represents a function?
Answer:
no . 3
Step-by-step explanation:
please mark me brainliestCome answer this question please
Answer:
You cannot combine -5x^2 and 2x.
Step-by-step explanation:
You cannot combine -5x^2 and 2x. They are not like terms
x^2 and x are not the same
I need help plz:////
Answer:
36 inch = 3 feets
72 inch = 6 feets
144 inch = 12 feets
Step-by-step explanation:
Evaluate if m=1 and n=2 what’s 15m/n+1-m^2+n
[tex]\\ \sf\longmapsto \dfrac{15m}{n}+1-m^2+n[/tex]
[tex]\\ \sf\longmapsto \dfrac{15(1)}{2}+1-(1)^2+2[/tex]
[tex]\\ \sf\longmapsto \dfrac{15}{2}+3-1[/tex]
[tex]\\ \sf\longmapsto \dfrac{15}{2}+2[/tex]
[tex]\\ \sf\longmapsto \dfrac{15+4}{2}[/tex]
[tex]\\ \sf\longmapsto \dfrac{19}{2}[/tex]
Plssssss help me ASAP!!!!!
Answer:
6
Step-by-step explanation:
plug in 8 for all p so 4^2 = 16 / 8 x 3 ---> 2 x 3 = 6
Macy's price What does the sofa cost at Ikea?
8. Shahada is looking to purchase a new sofa which costs $680 nt Macy's. At Ikea, she only pays 40% of
(a)
(b)
(c)
(d)
$640
$272
$408
$952
Answer:
The answer would be $408!
Step-by-step explanation:
680-40%
=408
Answer:
$408
Step-by-step explanation:
$680x40%=$272
$680-$272=$408
She pays $408 and gets $272 off
Help me with this please
[tex] \text{Algebraic Representation: }(x,y) \to (4x,4y)[/tex]
The scale factor is [tex]4[/tex].
two candles, each initial length of 30cm, are 20cm apart. the thinner candle burns at a rate of 1cm every 8 minutes and the other candle burn at a rate of 1 cm every 10 minutes. find two possible lengths for the distance between the tops of the two candles, if the candles can burn up for 3 hours.
Thinner candle:
y = length of the candle
x = rate it burns at every minute
y = -1/8x + 30
Thicker candle:
y = length of the candle
x = rate it burns at every minute
y = -1/10x + 30
To find the length after 3 hours:
y = -1/8(180) + 30
y = -1/10(180) + 30
6 + 2 ÷ 4 × 3 - 7 + 6 + 5 ÷ 3 - 1 × 1
Answer:
7.16666666667
Step-by-step explanation: