Answer:
10.7a + (−6)
Step-by-step explanation:
Let's simplify step-by-step.
3+16.4a−(9+5.7a)
Distribute the Negative Sign:
=3+16.4a+−1(9+5.7a)
=3+16.4a+(−1)(9)+−1(5.7a)
=3+16.4a+−9+−5.7a
Combine Like Terms:
=3+16.4a+−9+−5.7a
=(16.4a+−5.7a)+(3+−9)
=10.7a+−6
Option D is correct. The expression in its simplest form is: 10.7a - 6.
Let's simplify the given expression:
(3 + 16.4a) − (9 + 5.7a)
Distribute the negative sign to the terms inside the second parentheses:
(3 + 16.4a) − 9 − 5.7a
Combine like terms:
(16.4a - 5.7a) + (3 - 9)
Perform the subtraction and subtraction of coefficients:
(16.4a - 5.7a) + (-6)
Simplify the expression:
(10.7a) - 6
So, the expression in its simplest form is: 10.7a - 6. Option D is correct.
To learn more on Expressions click:
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Kayla is 5 2/3 feet tall. Todd 4 11/12 feet tall. How much taller is Kayla? Write an expression to represent this situation.
Answer:3/4
Step-by-step explanation:
5 2/3-4 11/12=17/3- 59/12=3/4
Answer:
It is 3/4 for this question
Pls help very easy ASAP PLS
Which expression is equivalent to negative two and one third times d plus four fifths minus the sum of one and five sixths times d plus nine tenths?
A - negative one half times d minus one tenth
B - negative twenty five over six times d minus one tenth
C - twenty five over 6 times d minus one tenth
D - negative one half times d minus one and seven tenths
Answer:B is the correct answer
Step-by-step explanation:
Pls help answer both if you can pls.
Answer: No
Explanation:
slope of the line: y= 1/3x
(6,2)
2= 1/3(6)
2=2> works for this one
(15,45)
45= 1/3(15)
[tex]45\neq 3[/tex]
What is the slope of this graph ? Please help asap.
12a^2 + 6ab - 26a - 18b Factoring by groups
Answer:
-14a^3+6ab-18b
Step-by-step explanation:
If your phone battery goes down by 4.58% every 10 minutes, how much has it gone down in 50 minutes?
Answer as a decimal. Round to the nearest 100th.
Answer:
22.9
Step-by-step explanation:
4.58 drops every 10 minutes
What would happen if it dropped 50 minutes
4.58x5 = 22.9
Answer:
22.9
Step-by-step explanation:
4.58x5 = 22.9
"You have a stack of 10 boxes that is 8 3/4 feet tall. What's the height of each box?"
Answer:
0.875. is the correct answer hopefully
If a car rolled down a 25-meter ramp, continued rolling another 20 meters at the bottom, then reversed and went back to the top of the ramp, what is the car's displacement? What is the car's distance traveled? Explain
I will give brainliest!
4x^2y - 2xz + 2xy^2 - yz factoring by grouping
Answer: (2xy-z)(2x+y)
Step-by-step explanation:
In order to factor by grouping, you take the first two and last two terms and find similaritiess by factoring.
First, find out if there is a GCF. In this case, there is none, so we can skip this step.
Next, group (4x^2y-2xz)+(2xy^2-yz). Take out the GCF of the grouped factors separately: 2x(2xy-z)+y(2xy-z). Notice how both of these grouped terms share a common factor.
What you would do is take that and move it to the front. Then, notice how the 2x+y is still remaining. This becomes the 2nd factor.
Therefore, the answer is (2xy-z)(2x+y)
Algebra gotta be the most hardest math. Help a sister out
Randall made 3 withdraws of $18.25 each. What was the change in his account? Include the answer in a sentence.
What is the perimeter of the actual garden?
Answer:
62.5 cm
Step-by-step explanation:
8.5 × 2.5 = 21.25 cm
4 × 2.5 = 10 cm
(10 cm × 2) + (21.25 cm × 2) = 62.5
-Therefore, 62.5 cm as the perimeter is the correct answer.
HELP PLEASE I NEED AN ANSWER ASAP
(FILE IS BELOW)
Which expression is equivalent to quantity negative three and one third times d plus three fourths end quantity minus quantity three and five sixths times d plus seven eighths end quantity?
one half times d minus one eighth
one half times d minus one and five eighths
forty three over 6 times d minus one eighth
negative forty three over six times d minus one eighth
Answer: 27/65
Step-by-step explanation:
Hello, I would really appreciate it if someone would help me out with this problem and explain how they did it if possible. If not that is completely alright. I hope you all have an amazing day. Thank you so much! :) (Even if you don't solve the problem feel free to give it your best guess or even just say "hello" to earn yourself some points. You deserve them.) :D (Will be looking for a brainliest!)
Answer:
4^7
Step-by-step explanation:
4^5 × 4^9/4^7
When you’re multiplying exponents with the same bases, add powers together, so...
4^5 × 4^9 = 4^14
= 4^14/4^7
When you're dividing exponents with the same bases, subtract powers from each other, so...
4^14 - 4^7 = 4^7
Therefore, 4^7 is your answer! :)
How many dogs were in the sample?
Weight of Dogs In the Pet Store
Stem Leaves
0 | 3, 8
1 | 0, 1, 4, 7
2 | 2, 4, 5
3 | 5
4 | 0
0 | 3 = 3 pounds
The mean of the dataset is 3.55
How do determine the mean?
The dataset is given as:
0 | 3, 8
1 | 0, 1, 4, 7,
2 | 2, 4, 5
3 | 5 0
Remove the stems
3, 8
0, 1, 4, 7,
2, 4, 5
5 0
The mean is then calculated as:
Mean = Sum/Count
So, we have:
Mean = (3 + 8 + 0 + 1 + 4 + 7 + 2+ 4 + 5 + 5 + 0)/11
Evaluate
Mean = 3.55
Hence, the mean of the data is 3.55
PLS help me with theses Questions 30P + brainlyest
Which expression is equivalent to −4 + 9 − 2x − 9x?
−11x + 5
−11x + 13
−11x − 5
11x + 13
What is the equation of this graphed line?
Answer: y=2x+2
Step-by-step explanation:
slope= [tex]\frac{y2-y1}{x2-x1}[/tex]
= [tex]\frac{6-(-6)}{2-(-4)}[/tex]
=12/6
=2
Which expression is equivalent to 4(−3.7b − 3.1) − (4b + 0.4)?
A - 18.8b + 2.7
B - −18.8b − 2.7
C - 18.8b − 12.8
D - −18.8b − 12.8
Hello, could anyone please help me with this problem.
Maria currently has 465 dollars in her account. She withdrew money for $250 and $175. If she spends $45 to put gas in her car, How much money will Maria have in her account?
Answer:
40$
Step-by-step explanation:
if maria has 465$ in her account and she withdrew 250$ makes 215 but it also says she withdrew 175 so 215 subtract 175 makes 40 dollars if she uses 45 dollars to fill her car up she still only has 40 dollars i hope this helps
Answer: $40
Step-by-step explanation: If Maria has 465 dollars and withdraws takes out subtracts $250 she has $215 after that she takes out or subtracts $175 so than she has $40. I think the answer is $40 but I am not so good at math so I'm not sure
John currently has $500 in his lunch account. He spent $15 each day on lunch. In how many days will John have $245?
Answer:
18 days.
Step-by-step explanation:
Step 1) Building an arithmetic sequence
We can build an arithmetic series with the given information.
The [tex]n[/tex]th term of an arithmetic series is given by the formula [tex]a_n = a_1 + (n - 1)d[/tex] .
[tex]a_1 = 500\\d = -15\\\to a_n = 500 - 15(n - 1) = 515 - 15n[/tex]
Step 2) Finding the n for which a(n) = 245
As this step's title implies, we need to solve the equation [tex]a_n = 245[/tex]:
[tex]515 - 15n = 245 \text{ / Subtract 245}\\515 - 15n - 245 = 245 - 245\\\to 270 - 15n = 0 \text{ / Add 15n}\\270 - 15n + 15n= 0 + 15n\\\to 270 = 15n \text{ / Divide by 15}\\\frac{270}{15} = \frac{15n}{15}\\\to 18 = n[/tex]
John will have $245 in 18 days.
Answer:
17 days
Step-by-step explanation:
Since John starts with $500 and each day, he’ll spend $15 on lunch. This means that:
On his first day, he’ll spend $15.On his second day, he’ll spend another $15 which is total spend of $30 ($15 x 2)On his third day, he’ll spend total of $45 ($15 x 3)Therefore, on his nth day, he’ll spend $15n where n represents the day. The problem can be modeled into an equation of [tex]\displaystyle{500-15n=245}[/tex] since we will be finding how many days it will take to reach $245.
Then solve for n-term which we determines as the day variable:
[tex]\displaystyle{500-15n-245=0}\\\\\displaystyle{255-15n=0}\\\\\displaystyle{255=15n}\\\\\displaystyle{n=17}[/tex]
Therefore, on his 17th day, he’ll have $245. Hence, the answer is 17 days.
You exercise for 34 of an hour. You jump rope for 13 of that time. In simplest form, what fraction of the hour do you spend jumping rope?
Answer:
You spend 1/4 of the hour jumping rope. The question states that 1/3 of 3/4 of an hour is spent jumping rope.
Step-by-step explanation:
Answer: You spend 1/4 of the hour jumping rope.
Step-by-step explanation:
The question states that 1/3 of 3/4 of an hour is spend jumping rope
To find this, multiply 3/4 by 1/3
3/4 times 1/3 = 3/12 = 1/4
So one third of 3/4 is 1/4
A space station is being built for 24 cubic modules. The space station can be any shape but the modules must be placed together so that entire faces match up with each other. Choose a tool to create two different plans for the space station. Eplain why you chose the tool you selected.
Answer:
The answer is 12 each.
There were between one and twenty-four tickets sold. How many students purchased this many tickets?
A. 15
B. 17
C. 20
D. 23
Answer:
D
Step-by-step explanation:
you are taking a science course in which there will be 5 tests. each worth 100 points, you have scores of 91, 94, 97, and 86 on the first 4 tests. you must make a total of 450 in order to get an A in the course. set up an inequality and solve it to find the sey of possible test scores that will give you an A.
9 + 94 + 97 + 86 + x ≥ 450
368 + x ≥ 450
368 - 368 + x ≥ 450 - 368
x ≥ 82
Answer:
Step-by-step explanation:
9 + 94 + 97 + 86 + x ≥ 450
368 + x ≥ 450
368 - 368 + x ≥ 450 - 368
x ≥ 82
What's the answer to this problem ??
"A stack of boxes is 6/5 meters tall. Each box is 3/10 meter tall. How many boxes are in the stack?"
Answer:
[tex]{\Large{ \fbox{ \sf{Four \: Boxes }}}}[/tex]
Step-by-step explanation:
Let x boxes are there such that sum of each box's height results in height of stack of boxes,
the expression will look like this
[tex] \frac{3}{10} \times x = \frac{6}{5} [/tex]
solving for x,
[tex]x = \frac{6 \times 10}{5 \times 3} [/tex]
[tex]x = \cancel{ \frac{60}{15} }[/tex]
[tex]x = 4[/tex]
Answer - There are four boxes.
[tex]\sf \small \pink{Thanks }\: \green{for} \: \blue{joining} \: \orange{brainly } \: \red{community}![/tex]
Which proportion can be used to find 65% of 200?
A. 65/200=x/100
B. 65/x= 200/100
C. 65/100=x/200
D. 65/100=200/x
Solving Inequalities
2n + 7 > 27 or 3 + 3n < 30
Not sure how to solve this, if I could get the steps, that would be great
Answer:
n > 10
n < 9
Interval notation:
(-∞, 9) U (10, ∞)
Step-by-step explanation:
2n + 7 > 27 or 3 + 3n < 30
-7 -7 -3 -3
2n > 20 3n < 27
÷2 ÷2 ÷3 ÷3
n > 10 n < 9
<--------- ----------->
<---------0--------0--------->
9 10
I hope this helps!