Which expression is equivalent to 5(2.47y − 2.03)?
12.35y + 10.15
12.35y − 10.15
12.35y + 2.03
12.35y − 2.03
Answer:
b) 12.35y − 10.15
Step-by-step explanation:
Given equation,
→ 5(2.47y − 2.03)
The equivalent expression is,
→ 5(2.47y − 2.03)
→ 12.35y − 10.15
Hence, option (b) is correct.
Answer:
[tex]\bf 12.35y-10.15[/tex]Step-by-step explanation:
[tex]\sf 5(2.47y - 2.03)[/tex]
Apply the distributive law:- [tex]\sf a\left(b-c\right)=ab-ac[/tex]
[tex]\sf 5\left(2.47y-2.03\right)[/tex]
[tex]\sf 5\times \:2.47y-5\times\:2.03[/tex]
Multiply the numbers:-
[tex]\sf 5\times\:2.47=[/tex]
[tex]\sf 12.35[/tex][tex]\sf 5\times \:2.03=[/tex]
[tex]\sf 10.15[/tex][tex]\bf 12.35y-10.15[/tex]
______________________
Hope it helps!
Have a great day!
PLS help me with theses Questions 30P + brainlyest
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
12a^2 + 6ab - 26a - 18b Factoring by groups
Answer:
-14a^3+6ab-18b
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! :)
HELP PLEASE I NEED AN ANSWER ASAP
(FILE IS BELOW)
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)
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:
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
Algebra gotta be the most hardest math. Help a sister out
Which expression is equivalent to −4 + 9 − 2x − 9x?
−11x + 5
−11x + 13
−11x − 5
11x + 13
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!
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]
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.
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
"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
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
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]
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
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
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.
Randall made 3 withdraws of $18.25 each. What was the change in his account? Include the answer in a sentence.
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:
will give the brainliest to the first or best answer!
Answer:
C
Step-by-step explanation:
8x is the 8 games which is grater than the 5x which is the 5 game and the plus 6 is the snack
Answer:
Step-by-step explanation:
Answer is C.
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.
Write the repeating decimal using bar notation
2.034034…
Answer:
2.034 The bar would go over the digits 034. This is the repeating part. You only write this part once with a bar over it. Do not put the bar over the 2. The 2 does not repeat.
Step-by-step explanation:
Answer: Your answer is 2.034 the bar would go over the 0
Step-by-step explanation:
Hope this helps
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
Pls help very easy ASAP PLS
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
I need a bit of help on this question.
Answer: x=16
Step-by-step explanation:
Knowing that the sideways lines are parallels, the corner of them are equal to each other. Using this information, we can create an equation.
6x-12=4x+20
2x-12=20
2x=32
x=16.