Answer:
Q.1. x=8-5
x=3
Q.2. -3x=16-7
-3x=9
x=-9/3
x=-6
Q.3. 3p=6*7
3p=42
p=42/3
p=16
Q.4. 2(x+5)=24
2x+10=24
2x=24-10
2x=14
x=14/2
x=7
Step-by-step explanation:
For Q1.
1. x + 5 = 8
x = 8 - 5
x = 3
2. -3x + 7 = 16
-3x = 16 - 7
-3x = 9
x = 9/-3
x = -3
3. 3P/7 = 6
3P = 6*7
3P = 42
P = 42/3
P = 14
4. 2(x + 5) = 24
2x + 10 = 24
2x = 24 - 10
x = 14/2
x = 7
5. x/5 - 8 = 9
x/5 = 9 - 8
x = 5
For Q.2:
1. 12 + 4(x + 3(x + 4)) = 108
12 + 4(x + 3x + 12) = 108
12 + 4x + 12x + 48 = 108
60 + 16x = 108
6x = 108 - 60
x = 48/6
x = 8
2. 5x + 7(4 - (x + 3)) = 31
5x + 28 - x + 3 = 31
6x + 31 = 31
6x = 0
x = 0
3. 2(3y - 2(y + 5) + 3) = -4
2(3y - 2y + 10 + 3) = -4
2(y + 13) = -4
2y + 26 = -4
2y = 30
y = 15
4. 20 - 2(2x -(2 - x) + 10) = -44
20 - 2(2x - 2 + x + 10) = -44
20 - 2(3x + 8) = -44
20 - 6x - 16 = -44
4 - 6x = -44
-6x = -44 - 4
-6x = -48
x = -48/-6
x = 8
5. 5(3x - 4(x + 2) + 5(2x + 1)) = 60
5(3x - 4x - 8 + 10x + 5) = 60
5(3x - 4x + 10x - 8 + 5) = 60
5(9x - 3) = 60
45x -15 = 60
45x = 60 + 15
x = 75/45
x = 1.67
For Q.3:
1. x/2 + x/3 = 10
(3x + 2x)/6 = 10
5x/6 = 10
5x = 60
x = 12
2. 1/3(2x/7 - 1) = 3
1/3(2x - 7/7) = 3
2x - 7/7 = 3/(1/3)
2x - 7/7 = 1
2x - 7 = 7
2x = 14
x = 7
3. (P + 2/2) + ( 2P - 6/4) = 5
(2P + 4 + 2P - 6)/4 = 5
(4P - 2)/4 = 5
4P - 2 = 20
4P = 22
P = 5.5
4. x/3 - (2x + 1)/3 - (x - 3)/5
(x - 2x + 1)/3 - (x - 3)/5
(1 - x)/3 - (x - 3)/5
(5 - 5x - 3x - 9)/15
(-8x - 4)/15
5. (y - 2)/3 + (2y + 5)/5 - (y + 7)/3
5/3 + (2y + 5)/5
(25 + 6y + 15)/15
(40 + 6y)/15
5. Use your answers to questions 3 and 4 to write an expression for how many times greater organism B's population is than organism A's population after 8 days. Simplify your expression, then write it as a number that is not in exponential form. Show your process. Write your answer in the space below. My answer
Population growth represents the rate at which the population changes
The expression for the number of times the population of B is greater than A is: [tex]2^6[/tex]The expression that is not in exponential form is: 64Given that:
[tex]r_1 = 2[/tex] ----- i.e. when the population doubles
[tex]r_2 = \frac{1}{2}[/tex] ----- i.e. when the population cut in halves
Population growth is represented as: [tex]A_n = ar^{n}[/tex]
Organism A
For the first 5 days (when it doubles) is:
[tex]A_5 = ar_1^{5[/tex]
Substitute [tex]r_1 = 2[/tex]
[tex]A_5 = a\times 2^{5[/tex]
For the next 3 days (when it cut in halves) is:
[tex]A = A_5 \times r_2^3[/tex]
Substitute [tex]A_5 = a\times 2^{5[/tex] and [tex]r_2 = \frac{1}{2}[/tex]
[tex]A= a \times 2^5 \times (\frac{1}{2})^3[/tex]
Apply law of indices
[tex]A = a \times 2^5 \times 2^{-3[/tex]
[tex]A = a \times 2^{5-3[/tex]
[tex]A = a \times 2^{2[/tex]
So, the growth factor of organism A is:
[tex]A = a \times 2^{2[/tex]
Organism B
For the 8 days, we have:
[tex]B=ar_1^8[/tex]
[tex]B=a\times 2^8[/tex]
The expression (n) for the number of times the population of B is greater than A is:
[tex]n = \frac BA[/tex]
This gives:
[tex]n = \frac{a \times 2^8}{a \times 2^2}[/tex]
[tex]n = \frac{2^8}{2^2}[/tex]
Apply law of indices
[tex]n = 2^{8-2}[/tex]
[tex]n = 2^{6}[/tex]
The expression that is not in exponential form is:
[tex]n = 2 \times 2\times 2\times 2 \times 2\times 2[/tex]
[tex]n = 64[/tex]
Hence:
The expression for the number of times the population of B is greater than A is: [tex]2^6[/tex]The expression that is not in exponential form is: 64Read more about population growth at:
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The point (-3,-1) lies in the quadrant: A.
Answer:
[tex]\displaystyle QUADRANT\:III[/tex]
Step-by-step explanation:
[tex]\displaystyle [POSITIVE, NEGATIVE] → QUADRANT\:IIII \\ [NEGATIVE, NEGATIVE] → QUADRANT\:III \\ [NEGATIVE, POSITIVE] → QUADRANT\:II \\ [POSITIVE, POSITIVE] → QUADRANT\:I[/tex]
I am joyous to assist you at any time.
5 boxes of pencils whith ten pencils per box = what
Answer:
50 pencils in total
Step-by-step explanation:
5 boxes * 10 in each = 50 pencil in total
I don’t even know what to do help
Answer:
see below
Step-by-step explanation:
for 1)
angle y = 180 - 110 = 70 degrees
angle z = angle y = 70 degrees
angle x = 89 degrees
for 2)
angle 1 = 180 - 85 = 95 degrees
angle 2= 180 - 95 - 85 degrees
angle 3 = 180-95 = 85 degrees
for 3)
m angle 3 = 25 degrees, same as m angle 1
What is 1,683 divided by 20 estimating
Answer:
To sum up, 1683/20 = 84.15. The number has 2 decimal places. As division with remainder the result of 1683 ÷ 20 = 84 R 3.
Please help me finish 4 and answer 5
there :))) check out image I could attach one image...sorry
−1/3−(−1/2)
3 1/3 - 5
−1 4/5−(−2 7/8)
−3 3/8−7/8
4 3/4−(−1 1/12)
I WILL GIVE YOU 20 POINTES IF YOU FINISH THIS BY THE END OF THE DAY
Hi ;-)
[tex]-\frac{1}{3}-(-\frac{1}{2})=-\frac{1}{3}+\frac{1}{2}=-\frac{2}{6}+\frac{3}{6}=\frac{3}{6}-\frac{2}{6}=\frac{1}{6}\\\\3\frac{1}{3}-5=-(5-3\frac{1}{3})=-(4\frac{3}{3}-3\frac{1}{3})=-1\frac{2}{3}\\\\-1\frac{4}{5}-(-2\frac{7}{8})=-1\frac{4}{5}+2\frac{7}{8}=-1\frac{32}{40}+2\frac{35}{40}=2\frac{35}{40}-1\frac{32}{40}=1\frac{3}{40}\\\\-3\frac{3}{8}-\frac{7}{8}=-(3\frac{3}{8}+\frac{7}{8})=-3\frac{10}{8}=-3\frac{5}{4}=-4\frac{1}{4}\\\\4\frac{3}{4}-(-1\frac{1}{12})=4\frac{9}{12}+1\frac{1}{12}=5\frac{10}{12}[/tex]
A refrigerator can be bought on hire purchase by making a deposit of $500 and 18 monthly installments of $56 each. Calculate the hire purchase cost of the refrigerator.
Simplify: 5a-6b-3a-2b
Answer:
Step-by-step explanation:
Like terms are terms that have same variable with same power.
Combine like terms.
5a - 6b - 3a - 2b = 5a - 3a - 6b - 2b
= 2a - 8b
calculate the size of unknown angle??
Anyone know the answers 11 through 20?
Step-by-step explanation:
11) x^5
12) 5x^2
13) x+21
14) 2x-8
15) 3^3
=3*3*3
=27
16)2^5
=2*2*2*2*2
=32
17) 5^4
=5*5*5*5
=625
18)2 times a number p squared
19)3 times a number m fifth power
20)the addition of half a number and 2
I need help! Please show work, so I can understand!!!
Answer:
C
Step-by-step explanation:
distance Y multiply 1.0936
Answer:C
Step-by-step explanation:
M=Y(1.0936)
The bracket also represents multiplication
The coordinates of the midpoint of GH are (-2, 5) and the coordinates of one endpoint are (-3, 7).
Answer:
(-1,3)
Step-by-step explanation:
can someone help??? I need to find the value of x
Answer:
x=30
Step-by-step explanation:
see in the picture .all steps are there
Step-by-step explanation:
The answer is mentioned above.
Hope it helps.
50 POINTS WILL MARK BRAINLIEST Below is the table of values of a function. Write the output when the input is n. (picture attached)
Answer:
n = 14
Step-by-step explanation:
12 - 10 = 2
12 + 2 = 14
Answer:
2nStep-by-step explanation:
Observation from input and output values:
4 = 2*210 = 5*212 = 6*2Since each output is double of corresponding input, the missing output is:
n*2 = 2n5. The population of Springfield has increased 33.4% since last year.-
Last
year the population was 9,000. How much has the
population increased?
- (1) 297 (2) 3,000 (3) 12,000 (4) 2,970
Answer:
33.4%= 33.4 ÷100×9000= 3006.0
Please help
with this please thank you!
Answer:
2 is vertical opposite to 4 and 3 is vertical opposite to 1
6x^2+4-7x-2x^3
Please help fast
6x² + 4 - 7x - 2x³
This is the simplest form for this equation.
Maybe I could solve furthermore if the value of X was given
If f(x) = -5n + 1 and g(x) = -6n + 2, find (f + g)(-2).
Answer:
Step-by-step explanation:
Solve the equation.
2x + 3(x - 1) = 3x + 11
X = [?]
Answer:
x=7
Step-by-step explanation:
2x+3(x-1)=3x+11
___________________________________________
2x+3x-3=3x+11
-2x -11 -2x -11
-7=1x
x=7
True or False 432.8 is a terminating decimal.
Answer:
yo this is false dont believe the hype
Step-by-step explanation:
yea thank biggie on this one
On Saturday, you bowl at Mar vista Bowl, where renting shoes costs $2 and each game bowled is $3.50. On Sunday, you bowl at Pinz where the shoe rental is $5 and each game bowled is $3.25. If you spent the same amount each day, how many games,g, were bowled?
Answer:
12 gamesStep-by-step explanation:
Let the number of games is g
Total cost at Mar Vista:
3.5g + 2Total cost at Pinz:
3.25g + 5Since same amount spent in both places, we have:
3.5g + 2 = 3.25g + 53.5g - 3.25 = 5 - 20.25g = 3g = 3/0.25g = 12Answer:
12
Step-by-step explanation:
Let the game be x
3.5x + 2 = 3.25x + 5
3.5x - 3.25x = 5 - 2
0.25x = 3
x = 3/0.25
x = 300/25
x = 12
Square root of 121,2pi,11.1, square root of 130 greatest to least
Step-by-step explanation:
✓121=121^1/2 =11
2*22/7 = 44/7 = 6.2
✓130=11.4
Answer from great to least = 11.4,11.1,11,6
Do NOT type the $ sign in your answers. Make sure you round correctly, to the nearest DOLLAR, or the quiz will not recognize your answer as correct.
$1925 in invested into an account that pays 0.44% interest compounded monthly, for 3.5 years.
a) What is the value of the investment after 3.5 years?
b) How much interest was earned?
Answer:
Step-by-step explanation:
what do you mean by algebra.?
Answer:
Algebra is a branch of mathematics dealing with symbols and the rules for manipulating those symbols. In elementary algebra, those symbols (today written as Latin and Greek letters) represent quantities without fixed values, known as variables.
Step-by-step explanation:
The parts of mathematics in which letters and other general systems are used to represent number and quantities in formulas and equations.
Can anyone help me with this?
Answer:
B.16 mins start from home to school or school to home
Step-by-step explanation:
I. When bike is faster than walk 3 times
Jane is in the middle of way to school
if she walk mid point to school is 4 mins
then mid point to home is 4 * 3 = 12 mins
School + Home = Total Mins
4 + 12 = 16
More discuss, leave comment below.
Which of the following describes an inference?
Please help ASAP!!!
Answer:
Step-by-step explanation:
I would say it is B
An inference is something that is not directly stated by logical deduction can be a reasonable conclusion to a conclusion drawn.
Example
There was a person standing in front of me waiting for a bus. I made it guess that it was a girl because she was wearing pink shoes and had a pink phone in her back pocket.
I know that's a bit sexist, but I could not think of another answer. You should, however, note the evidence.
HURRY BEST ANSWER WILL GET BRAINLYEST HURRY Subtract.
−135−(−258)
Enter your answer as a simplified fraction by filling in the boxes.
Answer:
123
Step-by-step explanation:
thats answrr gimme that brainliest
answer is 123
Step-by-step explanation:
-135-(-258)
as we then - x - = +
then -135+258
and we got answer 123
Six times the sum of two numbers is 324.
Find the two numbers if they also have a
difference of 90.
Answer:
73 and - 17
Step-by-step explanation:
Let the number be x and y, ATQ, 6(x+y)=324 and x-y=90, x+y=56 and x-y=90, x=73 and y=-17
Summation exists the addition of a series of any kind of numbers, named addends or summands; the result is their sum or total.
What is sum of two numbers?In mathematics, summation exists the addition of a series of any kind of numbers, named addends or summands; the result is their sum or total.
A sum exists as the result of an addition. For example, adding 1, 2, 3, and 4 provides the sum of 10, written. (1) The numbers being summed are named addends, or sometimes summands.
A summation, also named a sum, is the outcome of arithmetically adding numbers or quantities. A summation always includes a whole numeral of terms. There can be as irregular as two terms, or as many as a hundred, a thousand, or a million. Some summations include infinitely many terms.
Let the number be x and y,
ATQ, 6(x+y)=324 and
x-y=90, x+y=56 and
x-y=90,
x=73 and
y=-17
To learn more about sum of two numbers refer to:
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maria spent ⅓ of the money grandparents gave her on her adventure book. she also spent ⅑ of the money on a bag of candy. what fraction of the payment has Maria spent
Answer:
[tex] \frac{4}{9} [/tex]
Step-by-step explanation:
First add the two values
=⅓+⅑
LCM=9
=⅓x3+⅑
=
[tex] \frac{3}{9} + \frac{1}{9 } = \frac{4}{9} [/tex]