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
Help, please!!!!!!!!!!!!!!!!!!!!!!
need help, please
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Answer:
a
Step-by-step explanation:
By how much did the price of the stock change from the beginning of Week 1 to the end of Week 4?
Answer:
It changed by 1.2
Step-by-step explanation:
1.5 divided by 1.25 equals 1.2
1.25 times 1.2 equals 1.5
Hope I helped!! :)
Sorry if it's wrong! :(
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Answer:
um you add then you i dont know to how to explain this
Step-by-step explanation:
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:
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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At Breakfast Break, 2 eggs and 1 sausage patty cost $2.23 and 3 eggs with 2 sausage patties cost $3.76. Assuming that these amounts only pay for the eggs and sausage, how much does one sausage patty cost?
Cost of one sausage patty is $0.83.
What is an equation?An equation is a combination of different variables, in which two mathematical expressions are equal to each other.
Given that,
Cost of 2 eggs and 1 sausage patty = $2.23,
Cost of 3 eggs and 2 sausage patties = $3.76.
Write above expression in equation form,
2 eggs + 1 patty = 2.23 (1)
3 eggs + 2 patties = 3.76 (2)
To find the cost of patty, multiply equation (1) with 3 and equation (2) with 2,
6 eggs + 3 patties = 6.69 (3)
6 eggs + 4 patties = 7.52 (4)
By solving equation (3) and (4)
1 patty = 0.83
The cost of 1 sausage patty is $0.83.
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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
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.
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Please help please and please actually answer please
Answer:
#3
Step-by-step explanation:
Answer:
it's the last one
Step-by-step explanation:
last one
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:
Mr. Sonny's science class is calculating the average number of blinks per minute. Jan blinks 126 times in 7 minutes. What is her blinking rate, in blinks per minute?
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.
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.
:D hiiii im back with another most likely easy questionnnnnnnnnnnnnnnnnnnnnn
Answer: The answer is 75
20/4=5
5*15=75
Y'all help, it's due at 12 ;-;
Step-by-step explanation:
people get the oxgyen throught plants as we know plant helps to in hale the carbondioxide and exhale the oxygen that is needed for the people in respiration like wise people inhale and exhale the co2 ( carbon dioxide) .
Answer:
We get oxygen by breathing in fresh air, and we remove carbon dioxide from the body by breathing out air that already went in. Respiration is carried out bc when air is sucked in through our mouth/nose, it follows the windpipe and splits into 1 bronchi for each lung.
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.
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)
what is the nearest whole percent of 45
Answer:
Step-by-step explanation: 45% based on the way you state the question. 45% is a whole percent.
please help will name brainliest
Help, im timed :(((
will mark branliest
Answer: it is D)
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
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
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
need help with 7, 8, and 9 plz :]
An animal shelter has a ratio of cats to dogs that is 9:7. What fraction of these animals are dogs?
Answer:
For the answer I would say 7, the fraction of dogs is 7/7
Martha wants to give each guest the same thing in each gift bag. She has 12 chocolate bars, 24 packs of gum and 48 bags of chips.
Answer:
You could put together 12 bags and each would have 1 piece of chocolate, 2 packs of gum and 4 bags of chips
Step-by-step explanation:
Graph -3.5 and -1.5 on the number line.
Answer:
ok i kow this hold on
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: