Given that 3x – 8y = 39
Find y when x = 3
Give your answer as an improper fraction in its simplest form.
Answer:
- [tex]\frac{15}{4}[/tex]
Step-by-step explanation:
Given
3x - 8y = 39 ← substitute x = 3 into the equation
3(3) - 8y = 39
9 - 8y = 39 ( subtract 9 from both sides )
- 8y = 30 ( divide both sides by - 8 )
y = [tex]\frac{30}{-8}[/tex] = - [tex]\frac{15}{4}[/tex]
Sarah bought a new T-shirt for $40. The sale tax is 4%. How much was the tax?
Answer:
The tax is $1.60 bringing her total to $41.60
Answer: im getting free points dont get mad at me this person already answered so take full credit for him
Step-by-step explanation:
1. g(x) = f(x) - 7
how do u solve these?
Answer:
g' (×)=f
Step-by-step explanation:
g (×)=f×-7
g' (×)= d÷d× (f×-7)
d÷d×(f+g)=d÷d×(f)+d÷d=(g)
g' (×)=d÷d×(f×)-d÷d×(7)
g'(×)=f-d÷d×(7)
g'(×)=f-0
g'(×)=f
please help to solve this
Answer:
I can do the top 2
1. a = -11
2. z = 9/2 (or nine over two in word form)
Step-by-step explanation:
On a particular day 4% of the students were absent. If there are 1750 students at the school then how many were not absent that day?
a) 70
b) 1050
c) 1650
d) 1680
*pls help will mark brainliest!!!*
Answer:
A) 70
Hope this helps :)
There are 40 working hours in a week and 52 weeks a year. How much does Nate need to make an hour to stay out of debt if it costs him $900 to live each month?
Answer: $5.19
Step-by-step explanation:
If there are 40 working hours in a week and 52 weeks in a year, 40 * 52 should be the amount of working hours in a year.
40 * 52 = 2080 working hours
Nate needs $900 to live each month and there are 12 months in a year, so $900 * 12 would equal how much he spends per year.
$900 * 12 = $10800
Divide $10800 by 2080 working hours to get how much he needs to make per working hour.
10800/2080 = approximately 5.19, rounded down from the nearest hundredth
He needs to make $5.19 per hour, so the answer is the last option.
What equation is equivalent to 2(3-y)
A. 2y - 6
B. 6 - 2y
C. 6 + y
D. 6 + 2y
Answer:
The answer is C.6+y
............
A pattern maker earns $25 per hour. She has monthly business expenses of $300. Her profit is the difference between
her monthly earnings and her monthly business expenses. How many hours will the pattern maker have to work in a month to make a profit
of at least $2,000?
оооо
a) 92
b) 100
c) 108
d) 121
Answer:
i think the answer is a.92 hope this helps
A linear equation is shown on the graph. Which equation best represents the
relationship between x and y?
SOMEONE PLEASE HELP ASAP
Answer:
y=2x+1
Step-by-step explanation:
Classify the expression: 5x3+2x-3
Quadratic expression
Linear expression
Cubic expression
Exponential expression
Considering that it's highest exponent is of 3, the expression 5x³ + 2x - 3 is a cubic expression.
What is the degree of a polynomial?The degree of a polynomial is given by the highest exponent.
The highest exponent of the expression 5x³ + 2x - 3 is a 3, hence it is a cubic expression.
More can be learned about the degree of a polynomial at https://brainly.com/question/24380382
#SPJ1
Answer: C: cubic expression
Step-by-step explanation:
Classify the expression: 5x³ + 2x − 3
we know that
Polynomials can be classified two different ways - by the number of terms and by their degree.
so
a) By the number of terms is a trinomial, because has three terms
b) By their degree The degree of the polynomial is found by looking at the term with the highest exponent on its variable
The highest exponent is 3 so this is a 3rd degree trinomial
therefore
Is a cubic expression
The difference of a number c and 17 is more than 33.
Answer:
c-17=x>33
c=51
Step-by-step explanation:
The value of number c should be greater than 50.
It is given that difference of a number c and 17 is more than 33.
We have to find out the value of number c.
What do you mean by algebraic expressions ?
The algebraic expressions are those which are made up of variables, constants and algebraic operations i.e., addition, subtraction, etc.
As per the question ;
The difference of c and 17 is more than 33.
i.e.,
difference of c and 17 meant ; 17 should be subtracted from c and this is greater than 33.
i.e.,
c - 17 > 33
c > 33 + 17
c > 50
Thus , the value of number c should be greater than 50.
To learn more about algebraic expressions click here ;
https://brainly.ph/question/20786412
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how do I find the perimeter of a triangle
Answer:
Step-by-step explanation:
Add up all three side lengths
Answer:
Add up all the side lengths (3) of the triangle.
Step-by-step explanation:
Which ordered pairs are solutions to the equation 4x+2y=4?
Select the correct answer below:
(2,−6)
(1,5)
(−5,5)
(5,3)
none of the above
can u pls help me with this question asap
Answer:
I believe that answer A would be the best choice. It makes the most sense with what the question is asking for.
Step-by-step explanation:
True or False: Similar and congruent mean the same thing.
Answer:
true
Step-by-step explanation:
Answer: False
Step-by-step explanation: Similar means that only the angles are the same, but the sides are not. Congruent means the angles and sides are the same.
God loves you and he cares about you so repent becuase he is coming soon
Answer:
Yes god is really good
Step-by-step explanation:
PLS I NEED HELP ASAP I DONT HAVE TIME IT ALSO DETECTS IF IT RIGHT OR WRONG.
Answer:
D = 272 ft
Step-by-step explanation: hope this helps. pls mark me brainliest
Solve for y: -4(y - 3) = 5(2y - 6)
Answer:
y=3
Step-by-step explanation:
Use symbolab.
Answer:(−4y+12)−{10y−30}=0
4
y
12
10
y
30
0
−14y+42=0
14
y
42
0
(−14)⋅y+(42)=0
14
y
42
0
y=−(42)−14
y
42
14
y=−(14)⋅(3)(14)⋅(−1)=3
Step-by-step explanation:
Please help for a grade!?
Answer:
8.9
Step-by-step explanation:
A line passes through the point A (-2,-5) and has a slope of -9. Using the point-Slope formula, express the equation of the line in slope intercept form.
Answer:
y = -9x -23
Step-by-step explanation:
Point-slope formula gives you
y -(-5) = -9(x - (-2))
y + 5 = -9(x + 2)
y + 5 = -9x - 18
y = -9x -23
A Mars rover descended from the rim of a crater at a constant rate. After 2 days, the rover's elevation was 106 meters. After 6 days, its elevation was 48 meters. What elevation did the rover start at? ____meters Complete the equation that describes the relationship between the rover's elevation in meters, E, and the elapsed time in days, t. Write your answer using whole numbers or decimals rounded to the nearest tenth. E= ___ t+____
Answer:
135
E = - 14.5t + 135
Step-by-step explanation:
Given that, descent rate is constant ;
Elevation after 2 days = 106 m
Elevation after 6 days = 48 m
Let
Rate of elevation per day= x
Initial elevation = a
Hence,
a - 2x = 106 - - - (1)
a - 6x = 48 ___(2)
-2x + 6x = 106 - 48
4x = 58
x = 58/4
x = 14.5 meters per day
Hence, initial elevation :
a - 2(14.5) = 106
a - 29 = 106
a = 106 + 29
a = 135
Relationship between Rover's elevation, E and elapsed time, t
E = - 14.5t + 135
-14.5 = rate per day
10p^(2)- 5pq - 180q^(2)
HELP ME PLZ ITS DUE AT 11:59 AND I HAVE MORE
Answer:
Step-by-step explanation:
1: no
2 yes
3 no
4 yes
5 no
6 no
7 always
8 always
9 never
10 always
11 always
12 never
13 108
14 80
15 70
16 123
17 38
18 167
19 10
20 154
You can buy 2 tickets to school carnival for $9 total.
How many tickets can you buy for $27?
Answer:
6
Step-by-step explanation:
pls brainliest
9/2=4.5
27/4.5=6
At my school their are 12 more boys than twice the
number of girls. The total student population is 312
students. How many students are boys and how many
students are girls?
Answer:
12 boys and 300 girls
Step-by-step explanation:
There are twelve more boys than girls
Write each number in scientific notation. 1. 14,700
2. 0.00083
3. 760,000,000
4. 0.038
5. 0.38
6. 3.8
7. 3,800,000,000,000
8. 0.0000000009
In a bag of sweets, 6 are orange and 9 are lime. Jodi chooses a sweet at random, eats it an
then chooses a second sweet at random.
What is the probability that both sweets are the same flavour?
(3 Points)
Answer:[tex]\frac{17}{35}[/tex]
Step-by-step explanation:
Given
The bag contains 6 orange and 9 lime sweets
For both sweets of the same flavor, Jodi must either choose orange or lime
No. of ways it can be done is [tex]^6C_1\times^5C_1+^9C_1\times^8C_1[/tex]
The total no of ways of selecting two sweets out of 15 is [tex]^{15}C_1\times^{14}C_1[/tex]
The probability that both sweets are the same flavor
[tex]P=\dfrac{^6C_1\times^5C_1+^9C_1\times^8C_1}{^{15}C_1\times^{14}C_1}=\frac{102}{210}=\frac{51}{105}=\frac{17}{35}[/tex]
Help Plz
Will mark brainliest
Answer: 20.8ft
Step-by-step explanation:
Answer:
26/8 = 3.25
10 x 3.25 = 32.5
The answer is 32.5 ft
The Harvey family stayed at a hotel for n nights. The cost was $80 per night plus a one-time fee of $20 because they brought their dog. Which expression represent the total cost of their hotel stay.
80n + 20n
80n + 20
80 + 20n
80 + 20 + n
Answer:
80n + 20
Step-by-step explanation:
20 stays the same because it's a one time fee. Then, for every night the Harvey family stays, it costs them eighty dollars. So, it's 80n + 20
Answer: 80n+20
Step-by-step explanation:
80 is the cost of nights you stayed but you don’t know the number of nights they dated so you place n next to 80 and they payed an additional 20 fee so you add that to 80n
Please help me! (Tangent Ratios) (30 points)
Answer:
Step-by-step explanation:
A = 48/20
B = 20/48