Answer:
The solution to the system of equations be:
x = 2, y = 4
Step-by-step explanation:
Given the system of equation
y - 2 = x
y = 3x - 2
substitute y = 3x - 2 in the equation y - 2 = x
y - 2 = x
(3x - 2) - 2 = x
3x -2 -2 = x
3x - 4 = x
add 4 from both sides
3x - 4 + 4 = x + 4
3x = x + 4
subtract x from both sides
3x - x = x + 4 - x
3x - x = 4
2x = 4
divide both sides by 2
2x/2 = 4/2
x = 2
For y = 3x - 2, plug in x = 2
y = 3x - 2
y = 3(2) - 2
y = 6 - 2
y = 4
Therefore, the solution to the system of equations be:
x = 2, y = 4
The equation LaTeX: p=5000\cdot2^tp = 5000 ⋅ 2 t represents the population of an invasive fish species in a large lake, years since 2005, when the fish population in the lake was first surveyed.
What was the population in 2005?
Answer:
10000 fish species
Step-by-step explanation:
Given
[tex]p=5000\cdot2^t[/tex]
Required
Find the population in 2005
2005 is the first year
So: [tex]t = 1[/tex]
Substitute 1 for t in [tex]p=5000\cdot2^t[/tex]
[tex]p=5000\cdot2^t[/tex]
[tex]p = 5000 * 2^1[/tex]
[tex]p = 5000 * 2[/tex]
[tex]p = 10000[/tex]
What are the solutions of 3(x – 5)(2x – 3) = 0? Check all that apply.
Group of answer choices below.
-5
-3
-2/3
3/2
3
5
Answer:
[tex]3(x - 5)(2x - 3) = 0[/tex]
Solution of the given expression are :---
[tex]x - 5 = 0 \\ \boxed{ x = 5}[/tex]
[tex]2x - 3 = 0 \\ 2x = 3 \\ \boxed{x =\frac{3}{2} }[/tex]
x=5 and x=3/2 are the solution of the given expression.
-13 is 4 less than a number n
Answer:
-9
Step-by-step explanation:
-13 = n-4
n = -9
Answer:
-9
Step-by-step explanation:
n-4= -13,
9+4=13, so -9 -4= -13
(PLEASE HELP ME)
Which of the following number sentence is true?
A. 35/5 = -7
B. -72/9 = 8
C. -48/-12 = -4
D. -65/-13 = 5
Answer:
D
Step-by-step explanation:
D
$7.45 + -$23.45 + $74.17 + -$76.52
Answer:
-$18.35
Step-by-step explanation:
$7.45 - $23.45 + $74.17 - $76.52 =
-$18.35
Answer:
-18.35
Step-by-step explanation:
7.45 + -23.45 = -16
-16 + 74.17 = 58.17
58.17 + -76.52 = -18.35
Hopefully this helped :]
srry if I'm wrong
what times 60 equals 105
Answer:
1.75
Step-by-step explanation:
To do this you would have to do
105/60=1.75
so that would be the answer
If you can buy meat at 43.75 for 5 pounds,find the unit price of meat how much would 7 pounds cost
9. (4 x 10) (3.25 x 10)
Answer:
1300
Step-by-step explanation:
(4 x 10) (3.25 x 10)=40*32,5=1300
Answer:
1300
Step-by-step explanation:
(4×10) (3.25×10)
40 × 32.5= 1300
I reallyyyy need help on this
Answer:
4
Step-by-step explanation:
h(k(3))=[tex]\sqrt{2(3)+7+3}[/tex]
=4
What is the answer to this question?
1. 7 x ____ = 70
2. 86 x 10 = ____
3. 830 = ____ tens
4. ____ tens = 960
5. 10 x 61 = ____
6. 830 x 10 = ____
7. 1080 = ____ tens
8. ____ x 10 = 610
9. 135 x 10 = ____
10. 100 x 10 = ____
11. ____ x 10 = 790
12. ____ tens = 3700
13. 340 = ____ tens
14. 358 x 10 ____
Answer:
1. 7×10=70
2. 86×10=860
3. 830=3 tens
5. 6 tens=960
6. 10×61=610
7. 830×10=8300
8. 1080= 8 tens
9. 61×10=610
10. 100×10=1000
11. 79×10=790
12. 0 tens= 3700
13. 340= 4 tens
14. 358×10=3580
Answer:
9
Step-by-step explanation:
Nicole's school is selling tickets to a play. On the first day of ticket sales the school sold 3 senior
citizen tickets and 14 student tickets for a total of $232. The school took in $230 on the second day by selling 11 senior citizen tickets and 7 student tickets. Find the price of a senior citizen ticket and the price of a student ticket
100 points
Answer:
→ please refer to the above attachment ←
★ Cost of senior ticket is $12.★ Cost of student ticket is $14.solve -9/2x + 7 + 1/2x +4 = 10
2. Solve for x.
X
41°
54
41°
W
6x + 6
Answer:
since angles x and y are equal, then sides WX and WY should also be equal
x=8
Step-by-step explanation:
54=6x+6
48=6x
8=x
Work out the length of DB in the diagram below.
Not drawn
to scale
С
5 cm
D
B
4 cm
E
А
18 cm
Answer:
10cm
Step-by-step explanation:
CDB and CEA are similar=>CD/CE=DB/EA=>5/9=DB/18=>
9DB=90
DB=10
The required length of DB in the diagram below is 10 cm.
What is the triangle?Triangle is a polygon that has three sides and three angles. The sum of the angle of the triangle is 180 degrees.
Given:
In the given triangle we have
СD=5 cm
DE= 4 cm
EA= 18 cm
According to given question we have
In a triangle CDB and CEA are similar
So,
[tex]\frac{CD}{CE} =\frac{DB}{EA}\\\\=\frac{5}{9} =\frac{DB}{18}\\\\=9DB=90\\\\DB=10[/tex]
Therefore, the required length of DB in the diagram below is 10 cm.
Learn more details about triangle here:
https://brainly.com/question/2773823
#SPJ5
Woof woof dog school offers dog training classes. During this session 7 puppy's were enrolled for 4 adult dogs enrolled.how many total dogs were enrolled for this session
the answer is 28
because 4 x 7 is 28
Four more than three times a number is greater than twenty-two what is the answer?
Answer:
4 + 3x > 22?
im pretty sure this is the answer
Yesterday’s temperature in Florida was 70°F while New Jersey was -2°F. How much warmer was Florida’s temperature than NJ’s temperature?
Answer:
72
Step-by-step explanation:
70-(-2)=70+2=72
I'm givin all 25 of my points, please help me solve this
Answer:
4(7y-8)
Step-by-step explanation:
Simplify the expression:
-3(3 – 06y)
Answer:
18y−9
Step-by-step explanation:
Answer:
-9 - (-18y)
simplified more answer : -9 + 18y
if the 06 is a decimal then: answer: -9 - (-1.8y)
more simplfied answer: -9 + 1.8y
Step-by-step explanation: -3 x 3 = -9
-3 x 6y = -18 y
(if 06 a decimal: -3 x 0.6y = -1.8y)
variable answers (answers with a letter ) cannot be added together with a non variable answer
Find the slope of the line that
goes through the points (-3, 6)
and (-4,-1)
Answer:
7
Step-by-step explanation:
1) (-3,6) and (-4, -1) go into this formula m = (y2 - y1) / (x2 - x1)
2) -1 - 6 / -4 - (-3) = -7/-1
3) -7/-1 = 7
4) m=7
m = slope
Complete each statement with a number that makes the statement true.
_____ < 7°C
Do not include units (°C) in your answer.
copied for free from openupresources.org
Select one:
15
8
4
10
Answer:
4
Step-by-step explanation:
the answer is: 4
cause 4 is less than 7
Find the term that must be added to the equation x2−2x=1 to make it into a perfect square.
Answer:
The perfect square ( x -1 )² = 2
Step-by-step explanation:
Explanation:-
Given equation x² - 2 x = 1
⇒ x² - 2 x + 1 -1 = 1
⇒ x² - 2x + 1² = 1 +1
⇒ ( x -1 )² = 2
write an absolute value inequality for each graph explain pls?
Answer:
Step-by-step explanation:
(n) less than or equat to
Convert 4.2% to an
equivalent decimal.
Answer:
0.042
Step-by-step explanation:
divide by 100
Remember:
To convert a Decimal to Percent, you multiply the decimal by 100
To convert a Percent to a Decimal, you divide by 100
Answer:
0.042
Step-by-step explanation:
[tex]4.2/100 = 0.042[/tex]
PLEASE HELPPPPPPP,
Complete the table
f(u)=u2-6u
Answer:
u = -2 ; f(u) = 16
u = 0 ; f(u) = 0
u = 2 ; f(u) = -8
u = 4 ;f(u) = -8
Just Substitution a number in u
Step-by-step explanation:
hope it helps ☺️
Oliver and his friend were buying trick decks from the magic shop for 8 dollars each. How much did they spend if Oliver bought 4 decks and his friend bought 6 decks?
4. Simplify the expression by combining like terms. 8a+6b+5a+2b *
A. 13a+6b-2b
B. 17ab
C. 13a+8b
D. 13a+4b
Answer:
C
Step-by-step explanation:
Add the like terms, the a's by themselves and b's by themselves.
8a+5a=13a
6b+2b=8b
so 13a+8b
C
Please help me 35 points but please do not abuse this and answer incorrectly. Will name brainliest Thank you :)
Step-by-step explanation:
You just simplifyall answers or expand them and add them up
What is the solution of each equation?
a
no solution
b
infinitely many solutions
c
8
d
-8
Answer:
b
Step-by-step explanation:
2(h-8)-h=h-16
step 1 distribute 2 to whats in the parenthesis
2h-16-h=h-16
step 2 combine like terms
h-16=h-16
add 16 to each side
h=h
subtract h from each side
0=0
this would have an infinite amount of solutions