Answers
Answer:
9 and 3
Step-by-step explanation:
10/15=6/(2x-9)
90=10(2x-9)
9=2x-9
x=9
18-8=10
10/(4x+3)=8/12
120=8(4x+3)
30=8x+6
x=3
Related Questions
The price of a toy usually costing £20 is increased to £24
Work out the percentage increase.
Answers
Answer:
20 increase
Step-by-step explanation:
24-20/20
4/20 = 1/5
1/5 × 100 = 20
Answer
20%?
Explanation
If logb(x) = 4.23, find the value of logb(x^2)
Answers
Answer:
Step-by-step explanation:
[tex]log_{b}x=4.23\\log_{b}x^2=2 log_{b}x=2(4.23)=8.46 \\[/tex]
Write down in terms of n,an expression for the Nth term of the following sequences.
A) 2,5,8,11,14
B) 9,11,13,15,17
Answers
Answer:
see explanation
Step-by-step explanation:
The n th term of an arithmetic sequence is
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
A
There is a common difference d between consecutive terms , that is
d = 5 - 2 = 8 - 5 = 11 - 8 = 14 - 11 = 3
Thus the sequence is arithmetic with a₁ = 2 and d = 3, then
[tex]a_{n}[/tex] = 2 + 3(n - 1) = 2 + 3n - 3 = 3n - 1
[tex]a_{n}[/tex] = 3n - 1
B
There is a common difference d between consecutive terms , that is
d = 11 - 9 = 13 - 11 = 15 - 13 = 17 - 15 = 2
Thus the sequence is arithmetic with a₁ = 9 and d = 2 , then
[tex]a_{n}[/tex] = 9 + 2(n - 1) = 9 + 2n - 2 = 2n + 7
[tex]a_{n}[/tex] = 2n + 7
Answer:
so for question a the ans is 3n-1
for question b the ans is 2n+7
Step-by-step explanation:
Question Ausing the formula for arithmetic progressikn(a.p) a +(n-1)d, u use this formula because it has a common differnce
a=2, where a is first term or t1
d=t2-t1=5-2=3m where d is common difference
replace the values in the formula
2+(n-1)3
2+3n-3
3n-3+2
3n-1, this is the formula for the nth term
it will be 3n -1
if u try it
3(1)-1=2
3(2)-1=5
3(3)-1=8
3(4)-1=11
3(5)-1=14
Question B
using the formula for a.p, a+(n-1)d
a=9, because it is the first term
d=t2-t1=11-9=2
replace the values in the formula
9+(n-1)2
9+2n-2
2n+9-2
2n +7,this is the formula for the7th term
if u try it
2(1)+7=9
2(2)+7=11
2(3)+7=13
2(4)+7=15
2(5)+7=17
WILL GIVE BRAINLIEST! Six numbers form an arithmetic sequence with a common difference of 4. The sum of these numbers equals to 12. What are the six numbers?
Answers
Answer: -8,-4,0,4,8,12
Step-by-step explanation:
The six numbers of the arithmetic progression are -8, -4, 0, 4, 8, 12
Arithmetic sequence:aₙ = a + (n - 1)dwhere
a = first term
d = common difference
n = number of terms
d = 4
first term = a
2nd term = a + 4
3rd term = a + (3 - 1) 4 = a + 8
4th term = a + (4 - 1) 4 = a + 12
5th term = a + (5 - 1) 4 = a + 16
6th term = a + (6 - 1) 4 = a + 20
sum of its 6 terms = 12
Therefore,
a + a + 4 + a + 8 + a + 12 + a + 16 + a + 20 = 12
6a + 60 = 12
6a = 12 - 60
6a = -48
a = -48/6
a = -8
2nd term = -8 + 4 = -4
3rd term = -8 + 8 = 0
4th term = -8 + 12 = 4
5th term = -8 + 16 = 8
6th term = -8 + 20 = 12
learn more on arithmetic sequence here: https://brainly.com/question/21107678
-2 ( X + 3 ) =
Show work please or explanations
Answers
answer: -2x-6
explanation: use the distributive property
>> -2(x) = -2x
-2(3) = -6
-2+-6 = -2-6
what is the answer to this question
Answers
Numerical fluency
1
A selection box contains four types
of sweets: 6 caramels, 7 chocolates,
4 bonbons and 3 nougats
What fraction are carame/s
b. What fraction are not caramels?
Answers
Answer:
3/10 are caramel 7/10 are not caramel
Step-by-step explanation:
First you need to work out the total of sweets that is 6+7+4+3=20 sweets. Now it says that there are 6 caramels so you need to put 6/20 which can be simplified to 3/10. For b you have to work out the fraction that is not caramel so for this you have to add up 7+4+3=14 put 14/20 this can be simplified to 7/10.
i hope this helps
X+y=10 what does x equal
Answers
Answer: it is -1
Explanation:
The cost for an upcoming field trip is $30 per student. The cost of the trip C, in dollars, is a function of the number of students x. Select all the possible outputs for the function defined by C(x)=30x.
Answers
Answer:
B. 30
D. 90
Step-by-step explanation:
The cost for an upcoming field trip is $30 per student. The cost of the field trip C, in dollars, is a function of the number of students x. Select all the possible outputs for the function defined by c(x) = 30x. A. 20 B. 30 C. 50 D. 90 E. 100
Given function:
C(x) = 30x
Where,
x = number of students
A. 20
C(x) = 30x
20 = 30x
x = 20/30
= 0.67
x = 0.67 student
B. 30
C(x) = 30x
30 = 30x
x = 30/30
x = 1 student
C. 50
C(x) = 30x
50 = 30x
x = 50/30
x = 1.67 students
D. 90
C(x) = 30x
90 = 30x
x = 90/30
x = 3 students
E. 100
C(x) = 30x
100 = 30x
x = 100/30
= 3.33
x = 3.33 students
Number of students, x should be an whole number
The possible for the function are
B. 30
D. 90
6-3x=2-4x
step by step
Answers
Answer:x = -4
Step-by-step explanation:
-3x + 4 = -4x , 4 = -4x + 3x , 4 = -x , divided the - to both sides, x = -4
It takes 39 pounds of seed to completely plant a 4-acre field.
How many pounds of seed are needed per acre?
Answers
Answer:
9.75 pounds
Step-by-step explanation:
Because it takes 39 pounds to completely plant 4 acres, if you dived 39 by 4, you'll get the amount of seed you need per acre.
Solve for the value of w.
(w-8)°
(2W-1)º
Answers
Answer:
w=57
Step-by-step explanation:
The angles are supplementary because they are adjacent to one another and lies on a straight line
w-8+2w-1=180
Combine like terms
3w-9=180
Subtract 9 on both sides
3w=171
Divide 3 on both sides
w=57
hii pls help i’ll give brainliest if you give a correct answer
Answers
Hey there ..
Ur answer .. Check it out ..
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NEEXDD QUICK ANSWER TIMED TEST
Which compound inequality is represented by the graph? 2 0 1 2 3 4 5 x 4 or x> 3 3 X
Answers
A farm has 140 bushels of wheat to sell at his roadside stand .He sells an average of 15 ⅗ blushes each day. Represent the total change in the number of blushes he has sold after 6 days.
Answers
Answer:
93 3/5
Step-by-step explanation:
Total bushels to sell = 140
Average sale per day = 15 3/5 bushels
Total change in the number of bushels sold after 6 days ;
Average bushels sold per day * Number of days
15 3/5 * 6
(78/ 5) * 6
468 / 5
= 93 3/5
Change in number sold after 6 days = 93 3/5
Vera bought a new car in 2016. One year later, the car had depreciated in value by $2,300 and was worth $28,140. Find the value of her car when she purchased it in 2016.
Answers
Answer:
30,440
Step-by-step explanation:
Since the value of the car a year after she bought it was given along with the amount the value dropped, Vera's car was worth $30,440 when she bought it.
someone pls help me pls
Find the sum for the equation (2m + 2y + 5) and (1m + 7y-10)
Answers
Answer: 3m + 9y -5
Step-by-step explanation:
2m + 2y +5 = 1m + 7y -10
can someone help!!! or explain to me how to do this bc i’m so confused :(
Answers
Answer:
I believe the first one is C. I did this in class yesterday but my teacher took my paper sooo...
Step-by-step explanation:
please help brainlist!
Answers
Answer:
4/8 - 2/8 = 2/8 = 1/4
Step-by-step explanation:
Answer:
on the first part the answer is 1/4
as for the blanks here it is 4/8 - 2/8 = 2/8
i need help with this question ASAPP
Answers
Answer:
{1, 2, 4, 6, 7}
Step-by-step explanation:
The domain of a function is the set of values of x.
Answer: {1, 2, 4, 6, 7}
Cargo ship can carry 21,600 tons Cars weigh 3.6 tons each Trucks weigh 7.5 tons each y = number of cars x= number of trucks Your equation was 3.6y + 7.5x = 21 600 Find the number of cars that can be shipped if there are no trucks.
Answers
Answer:
6000 cars
Step-by-step explanation:
Each car weighs 3.6 tons and the ship can carry 21,600 so 21,600÷3.6 is 6000
11 of 12
? Round to 1 decimal place
73.03
Answers
Answer:
73.0
Step-by-step explanation:
just removed the number because 3 is below 5
4. What is the area triangle WXZ?
Answers
Drag and drop numbers into the boxes so that the paired values are in a proportional relationship
Answers
Answer:
6 goes on top of 3
4.5 goes under 9
Step-by-step explanation:
its self-explanatory
The scatterplot below shows the number of hours that some high school students spend on working and on video games.
A graph title Working and Video games has weekly working hours on the x-axis and weekly hours of video games on the y-axis. Points are grouped together and decrease.
Which statement about the scatterplot is true?
In general, the number of hours spent working does not affect the number of hours spent on video games.
In general, the amount of weekly time spent working is equal to the amount of weekly time spent on video games.
As the amount of time spent working increases, the amount of time spent on video games increases.
As the number of hours spent working increases, the amount of time spent on video games decreases.
Answers
Answer:
D
Step-by-step explanation:
I got it right on edg 2020
Answer:
d
Step-by-step explanation:
Nine students choose integers. Here are seven of them:
5, -8, 10, -1, -12, -20, and 1.
.. When all nine integers are ordered from least to greatest, the middle
integer is 1. Describe the integers chosen by the other two students.
Answers
Answer:
-20, -12, -8, -1, 1, 5, 10
Step-by-step explanation:
00:00
Carter has $8.49 in change in his money bank. Luke has $12.86.
Use the models provided and mental math to answer the questions.
Part A
What is the total amount of money that the boys have?
?
total -->
$8.49
$12.86
Enter your answer in the box
$
00:00
Part B
How much more money does Luke have than Carter
Answers
Answer:
Part A= $21.35 || Part B= $4.37
Step-by-step explanation:
That's how money works.
Answer: The total amount the boys have is $21.35, luke has 4.37 more then Carter.
Step-by-step explanation:
if angle 1= 135, what is the measure of angle 2, and give your reason. Use the picture i used
Answers
Answer:
The measure of m∠2 is:
m∠2 = 45°Step-by-step explanation:
A straight angle is an angle equal to 180 degrees. It is called straight because it appears as a straight line.
Given
The angle ∠ 1 = 135°.
It is clear that angles ∠ 1 and ∠ 2 lie on a straight line.
We know that a straight line is basically a straight angle i.e. 180°.
Thus,
The sum of angles ∠ 1 and ∠ 2 will be 180°.
i.e.
m∠1 + m∠2 = 180°
substitute m∠1 = 135° in the equation
135° + m∠2 = 180°
subtract 135° from both sides
135° + m∠2 - 135° = 180° - 135°
m∠2 = 45°
Therefore, the measure of m∠2 is:
m∠2 = 45°i need help i dont get this problem
Answers
Answer: C
Step-by-step explanation: You divide and then swoosh back in the decimal and round
Can someone help me?
Answers
Answer:
X = 9.2
Step-by-step explanation:
You have to use the pythagorean theorm, which is a squared + b squared = c squared. Looking at the triangle, the vertical line is 6, and the horizontal is 7.
6squared + 7squared = c squared
85 = csquared
Take the square root of both sides to get rid of the squared on the c.
sqroot of 85 = 9.2