Solve the equations:
1. 9x - 5 = 5x + 7
2. 8x - 2 = x - 16
3. 8x + 5 = 2x + 23
4. 2x + 8 = 5x + 20
5. 5(2x + 6) = 3x - 5
Answer:
5(x – 4) + 3x – 9x = 6 – (2x + 5) + 8x
step1:- 5x - 20 + 3x - 9x = 6 - 2x - 5 + 8x
step2:- 5x + 3x - 9x - 20 = 8x - 2x + 6 - 5
-x - 20 = 6x + 1
stp 3
-20 = 7x + 1
step 4
-21 = 7x
divide both sides by 7:-
-3 = x
thats the solution x = -3
Answer:
1. X=3, 2. X= -2, 3. X=3, 4. X= -4
A roller coaster can accommodate 18 riders in 8 minutes. Complete the table with equivalent ratios.
Answer:C. 32
Step-by-step explanation:
18 X 4 = 72
8 X 4 = 32
So therefore there both equivalant
Bottom right: 32
After 8 is 16
After 16 is 24
After 18 (top) is 36
After 36 (top) is 54
After 54 is 72
The graph
Top row: 18, 36,54,72
Bottom row: 8, 16, 24, 32
need help, please
brainly
Answer:
a
Step-by-step explanation:
A 12,000-gallon pool is being filled at a rate of 40 gallons per minute. At this rate, how many minutes will it take to fill the pool 3/4 full?
Answer:
It would take 225 minutes to fill up 3/4 of the pool
Step-by-step explanation:
HELP PLz Now!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
It will take 16 months to grow which is C
Step-by-step explanation:
Answer: 16 months
Step-by-step explanation:
8 / 1/2 = 16
16 x 1/2 = 8
So it would take her 16 months to grow her hair 8 inches.
What is one constant of proportionality for this situation? *
Answer:
The constant of proportionality is the ratio between two directly proportional quantities. In our tomato example, that ratio is $3.00/2, which equals $1.50. Two quantities are directly proportional when they increase and decrease at the same rate.
Step-by-step explanation:
i will give brainlest to the first person to answer this question:
While at the grocery store, Mrs. Martin noticed that there were two different sized bottles of hot sauce, one was 16.9 ounces and the other 32.55 ounces. What is the difference in weight of the two bottles of hot sauce?
Answer:
15.65 ounces
Step-by-step explanation:
You have to subtract 16.9 from 32.55. This gives you 15.65 ounces.
Answer:
15.65 ounces
Step-by-step explanation:
I hope it's right :)
One stamp is randomly selected from a 10-by-10 sheet of 100 stamps. What is the probability that the stamp selected is not along an outer edge? Express your answer as a common fraction. Plz answer as soon as possible... thx!
The required probability of not stamp not along an outer edge is 8/25.
What is a fraction?A fraction is a numeral that represents a rational number.
Let a and b be two numbers, then their fraction can be represented as a/b.
Given that,
Total numbers of stamp in a stamp sheet of 10 by 10 = 100,
On one edge there would be 10 stamps but on each diagonal there will be 1 stamp common,
Therefore, total number of stamps on outer edge will be = 9 x 4 = 36
Remaining stamps = 100 - 36 = 64
The fraction value of 64 out of 100 = 64 / 100 = 8 / 25
The required fraction value of stamps is 8 / 25.
To know more about Fraction on:
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ASAP PLS ANSWER I DEAD
Answer:
Variables: you are correct
Coefficients: -2
Constant: 3/7
Step-by-step explanation:
Variables are letters used in math so you were correct.
Coefficients are numbers with a variable. So to find the coefficient you would look for a number "connected" to a variable. This would be -2 because it is being subtracted from the first term.
The constant is 3/7 because you could put it on a number line.
A rectangular prism is shown below. What is the lateral surface area?
Answer:
the answer is 110 because 5 times 2 equals 10 and 10 times 11 is 110
Answer:
2(11)(5)+2(11)(2)+2(2)(5)=110+44+20=174
174 Square Centimetres
6&7 thanks for your help
Answer:
Length = 11 1/3 ft; Width = 4 2/3 ft
Step-by-step explanation:
First question:
The length is 2 more than twice the width, so
L = 2W + 2
Second question:
2L + 2W = 32
L = 2W + 2
Since the second equation is already solved for L, we can use the substitution method. Replace L of the first equation with 2W + 2, and solve for W.
2L + 2W = 32
2(2W + 2) + 2W = 32
4W + 4 + 2W = 32
6W = 28
W = 28/6 = 14/3 = 4 2/3
L = 2W + 2 = 2(14/3) + 2 = 28/3 + 6/3 = 34/3 = 11 1/3
L = 11 1/3
W = 4 2/3
Answer: Length = 11 1/3 ft; Width = 4 2/3 ft
try to say m without using Ur lips ( its impossible) if u can do that u will get a brainliest
and i cant hear u im blind
Answer: U
Step-by-step explanation:
one stone on easter island is 12 meters high. the nose of the statue is 3.3 meters long. If the proportional statue is only 10 meters high. How long will the nose be? write your answer in a decimal
Answer:
The nose will 2.75 meters long.
Step-by-step explanation:
Answer: 2.5 meters long
Seventy-two people signed up for the soccer league. After the players were evenly divided into teams, there were 6 teams in the league and x people each team.
Answer:
There are 12 people in each team
Step-by-step explanation:
72:6=12
Answer:
that means x equals 12
Step-by-step explanation:
because 72 divided by 6=12
A bag of Jolly Ranchers contains:
2 red
1 blue
4 pink
3 green
5 purple
Ms. McCorkle will select 2 Jolly Ranchers, without replacement. What is the probability that she will select a purple, then a green? Your answer should be a simplified fraction.
please help 50 points
Alicia rented bowling shoes for $3 and played 4 games at $2 each. Write and
evaluate an expression for the total cost of bowling.
Please help with math
Answer:
Ok here are the answers:
6: B
7: B
8: C
9: D
10: A
Have a good day! :)
Answer:
Step-by-step explanation:
6 is B (second)
7 is B (second)
8 is C (third)
9 is D (last)
10 is A (first one)
Help, please!!!!!!!!!!!!!!!!!!!!!!
Help me please, this make no sense to me
Answer:
< 3 = 143 because you add the 90 degree angle and the 53 degree angle and get 143 and then do 180 - 143 to get <2 = 37 and then 180 - 37 to get < 3 = 143
Khan Academy PLEASE SOMEONE HELP FASTTT!!!!
Help please it is graphing
Here are the pairs:
(from the left)
First group: 3rd graph, y = x - 2, table g
Second group: 2nd graph, y = 2x, table b
Third group: 1st graph, y = x + 2, table m
need help with 7, 8, and 9 plz :]
alan is converting large and small numbers from standard notation to scientific notation. group the numbers according to their powers of 10
Answer:
i am kind of confused by the question but i would say to but all the numbers below 1 in the 10^-4 section and the numbers above 1 in the 10^6.
i might be wrong i don't what the question is really.
Step-by-step explanation:
Alan is converting large and small numbers from standard notation to scientific notation
10⁶ = 4.03 x 10⁶, 2.93 x 10⁶, 5 x 10⁶
10⁻⁴ = 1.2x 10⁻⁴, 6 x 10⁻⁴, 5.9 x 10⁻⁴
What is the scientific notation of a number?The standard form for a number is a method by which we write number in a format like b×10ˣ. The value of b should be in between 0 to 10.
Given that,
The numbers,
0.00012, 4030000, 2930000, 0.0006, 5000000, 0.00059
Taking number, 0.00012
To convert it into scientific notation,
It should be in from of b×10ˣ,
So, now dividing and multiplying 10000 into the number 0.00012,
⇒ 0.00012 x (10000/10000)
⇒ (0.00012 x 10000)/10000
⇒ 1.2/10000
⇒ 1.2x 10⁻⁴
Similarly,
0.0006 can be written as 6 x 10⁻⁴
And 0.00059 can be written as 5.9 x 10⁻⁴
Now taking number, 4030000
To convert it into scientific notation,
It should be in from of b×10ˣ,
So, now dividing and multiplying 1000000 into the number 4030000,
⇒ 4030000 x (1000000/1000000)
⇒ (4030000 / 1000000) x 1000000
⇒ 4.03 x 1000000
⇒ 4.03 x 10⁶
Similarly,
2930000 can be written as 2.93 x 10⁶
And 5000000 can be written as 5 x 10⁶
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Graph -3.5 and -1.5 on the number line.
Answer:
ok i kow this hold on
Step-by-step explanation:
what is the slope of the line passing through the point(2,-1) and the origin.
This is the whole question, no picture came with it.
Answer:
- 1/2
Step-by-step explanation:
(0,0) (2,-1)
m = difference of y/difference of x = (-1 - 0) / (2 - 0) = - 1/2
y = - 1/2 x
I need part A answer and part B answer
Answer:
A is they are proportional, B is they are not proportional
Step-by-step explanation:
Figure the rest out
Whoever answers all three correctly is who I’ll give brainlist to.
Answer:
a c d i think those are answers
Help, im timed :(((
will mark branliest
Answer: it is D)
Step-by-step explanation:
please help will name brainliest
Which of the following numbers is written in scientific notation?
A. 17
B. 17 × 106
C. 3.734 × 10–14
D. 3.734
Answer:
i think is b
Step-by-step explanation: