the sum of eight times a number and fifteen is seven. find the number.
Need HEELPPPP Did you know that chickens sometimes eat vegetables and fruits? A farmer likes to give the chickens apples to share. The farmer observes that 5 chickens eat 8 apples. What is the ratio of the number of chickens to apples?
3:8
5:8
8:3
8:5
Answer:
It would be 5:8
Step-by-step explanation:
A cricket bat is bought for $400. Later, it is sold with a loss of 15%. How much is the cricket bat sold for? =
After selling the cricket bat, how much money has been lost? Give your answer to two decimal places because it is a currency.=
Answer:
$340.00
Step-by-step explanation:
What I like to do first is find 10% of the number.
So 10% of 400 would be $40.
Then find half (5%) of the 10% ($40), which would be $20.
Add the $40 + $20 to get $60.
Then take $400 and subtract $60,
which gives you $340.00
what is the slope of a line b perpendicular to line a with equation y=7x-9
Answer:
The slope of line b would be -1/7.
Step-by-step explanation:
This happens because if you have the slope of any line and are trying to find the perpendicular line to said line, the slope of the perpendicular line will always be the opposite reciprocal of the original slope.
Then, all you need to do is find some points and graph the lines.
Use compatible numbers to estimate the correct quotient.
7)697
——
A) 90
B) 100
C) 110
D) 120
hi! can someone pls help me w this? i appreciate it! :$
Answer: A
Step-by-step explanation: A
por que es la mas parecida
Your normal work week is 30 hours. You make $10 an hour.Last week you worked 31 hours. What is your total paycheck.
Answer:
$310
Step-by-step explanation:
How many liters of a 50% acid solution must be mixed with a 30% acid solution to get 180 L of a 40% acid solution?
____ liters of a 50% acid solution must be used.
Answer: 90
Step-by-step explanation:
Points cause i need help with math! so here u go and thanks everyone for the math help!!! here is my gratitude lol!
Answer:
the systems of equations corresponding to the given solutions, in order
Step-by-step explanation:
What is the factored form of the expression below?
6x^2 + 17x + 5
a (3x + 1)(2x + 5)
b (6x + 1)(3x + 5)
c The expression cannot be factored over the integers.
d (3x + 5)(2x + 1)
Answer:
The correct choice is option a. (3x + 1)(2x + 5)
Step-by-step explanation:
6x^2 + 17x + 5
= 6x^2 + 15x + 2x + 5
= 3x(2x + 5) + 2x + 5
= (3x + 1)(2x + 5)
Answer:
a. (3x+1)(2x+5)
Step-by-step explanation:
6x^2 + 17x + 5
6 = 3x times 2x and 5 = 1 times 5
(3x + 1) (2x + 5)
Plz helppppp me I need to know how to do this for a test
Quadratics by taking square roots (intro)
Answer:
Lesser: -6
Greater: 6
Step-by-step explanation:
h(x) = -5x^2 + 180
-5(x^2 - 36)
-5(x+6)(x-6)
x = -6, 6
prove that 5^(2n - 1) is divisible by 8
Answer:
Step-by-step explanation:
Prove that 52n − 1 is divisible by 8 for all n ∈ N.
Solution
To prove by induction, we must
1. Show it is true for n = 1
2. Assume true for n and prove it is true for n + 1.
Let P(n) be the statement 52n − 1 is divisible by 8.
When n = 1, 52 − 1 = 24, which is divisible by 8.
This proves P(1).
Suppose that P(n) is true, i.e., 52n − 1 is divisible by 8.
Then 52(n+1) − 1 = 52
· 5
2n − 1 = 52
(52n − 1) + (52 − 1).
Note that 52n −1 is divisible by 8 using P(n) and also 52 −1 = 24 is divisible
by 8. Thus we have proved that P(n + 1) is true.
We conclude that P(n) is true for all n ∈ N.
How to find the maximum or minimum value of a quadratic function?
The maximum or minimum of a quadratic function is found evaluating the polynomial at [tex]x = -\frac{b}{2\cdot a}[/tex].
A quadratic function is an algebraic function of the form:
[tex]y = a\cdot x^{2}+b\cdot x + c[/tex], [tex]\forall \,x, y, a, b, c\,\in \mathbb{R}[/tex] (1)
Where:
[tex]x[/tex] - Independent variable.[tex]y[/tex] - Dependent variable. [tex]a,\,b,\,c[/tex] - Coefficients.The maximum/minimum of a quadratic function is represented graphically by the vertex, which is the only point that has no a "twin" point by any means of symmetry. We can get the x-coordinate of the vertex by means of the quadratic formula:
[tex]a\cdot x^{2} + b\cdot x + (c- y) = 0[/tex] (2)
[tex]x = \frac{-b\pm \sqrt{b^{2}-4\cdot a\cdot (c-y)}}{2\cdot a}[/tex], where [tex]b^{2}-4\cdot a\cdot (c-y) = 0[/tex].
Hence, the x-coordinate of the vertex is:
[tex]x = -\frac{b}{2\cdot a}[/tex] (3)
And the y-coordinate of the vertex is determined by evaluating (1) at (3):
[tex]y = f\left(-\frac{b}{2\cdot a} \right)[/tex] (4)
The maximum or minimum of a quadratic function is found evaluating the polynomial at [tex]x = -\frac{b}{2\cdot a}[/tex].
We kindly invite to check this question on maxima and minima: https://brainly.com/question/12870574
Examine the last statements made by the Dormouse:
(1) I breathe when I sleep.
(2) I sleep when I breathe.
Write each of the statements in "If .... then” form.
Answer:
I believe what your teacher is looking for is
"If I breathe when I sleep, then I sleep when I breathe."
"If I sleep when I breathe, then I breathe when I sleep."
Step-by-step explanation:
I hope I'm correct ^-^
Can someone please help me NO LINKS!!!
Answer:
14 is the correct answer
Answer:
14
Step-by-step explanation:
the answer is 14 when the equation is evaluated
Please help. Subtract using the number line.
−3/5 − (−2/5)
Select the location on the number line to plot the difference.
Answer:
[tex]-\frac{1}{5}[/tex]
Step-by-step explanation:
→ Remember what 2 minuses make
plus
→ Rewrite the question
[tex]-\frac{3}{5} +\frac{2}{5}[/tex]
→ Solve
[tex]-\frac{1}{5}[/tex]
Answer:
Other persons brainliest
Step-by-step explanation:
Find the time based on the information given.
The time is ___ hours.
Time = Rate ÷ Distance
= 140.9649 mph ÷ 500 miles
= 0.28 hours
There are 360 girls in a school and they account for 15% of the students studying there, How many students study at that school?
Answer:
1250
Step-by-step explanation:
help me please WORTH 20 POINTS
Answer:
1
Step-by-step explanation:
Which property justifies the statement below?
Answer:
It's associative property because they essentially mean the same thing, with the same signs and numbers and all, except the numbers are in different places.
Step-by-step explanation:
Hope this makes sense :)
3x9 is 27
9,18,27
if you need more support just ask me ;)
Answer:
genius confirmed?? O.o
Step-by-step explanation:
Manz is too goated on da stix
According to the image below What does n=
Answer:
N=3
Step-by-step explanation:
When we divide we substract the powers when we multiply we add up the powers of the same number.
Answer:
n = 3
Step-by-step explanation:
What is the slope of the line represented by the points in the table shown below?
x
-4
-1
5
9
y
17
8
-10
-22
m=⅓
m=-3
m=3
m=-⅓
Answer: Slope of the line formed by the data is -3.
m=-3 for y=mx+b.
Step-by-step explanation: The slope is the change in y (the rise) divided by the change in x (the run) between two points on the line. I'll pick 2 points: (-4,17) and (9,-22). Any two points will work, if it is a straight line. For these points, y, the rise, changes from 17 to -22, for a net change of (-22 - 17) = -39 for y. x, the run, goes from -4 to 9, for a change in x of (9 - (-4)) = 13.
The rise(y) over the run(x) for these points is thus (-39/13) = -3
The slope is -3
What is the LCM? Please help asap!!
Answer:
d
Step-by-step explanation:
Answer:
C.) [tex]e^3r^3t^3[/tex]
Step-by-step explanation:
The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.
After watching Donald Duck in Mathmagic Land, please type out three things that you learned from the video. Did you like the video? Why or why not? Please answer all parts to the question
Answer:
Hope this helps
Step-by-step explanation:
Mathmagic Land had taught me more about math that I never knew before. I learned that everything can be involved with math. It all starts at the Pythagoreans which were the Greek. An example of how math is used today, is by playing billiards.
In billiards, you have to have a good technique of how your going to hit the ball, (good angles,) and you have to have a precise calculation of the angle your going to hit it at.I also learned when you cut shapes like a sphere, it just makes more and more shapes.
This is what I learned watching the Mathmagic Land Video.
Yes, Donald Duck in Mathmagic Land taught me alot of things I did not know before.
Practicing quick shots, Roberto made three baskets in ten seconds. At
this rate, how many baskets could he make in one minute?
Answer:
18 baskets in a minute
Step-by-step explanation:
First, ten seconds is 1/6 of a full minute, so multiply the amount of baskets he made in ten seconds by 6 to get your answer:
3 x 6 = 18
3 -14x -x + 25 + 15 simplify
Answer:
−15+43
Step-by-step explanation:
1. Add the numbers
= 3−14x−x+25+15
= 43−14−
2. Combine like terms
= 43−14x−x
= 43−15
3. Rearrange terms
= 43−15x
= −15+43
Quincy, Rosalina and Jamal have formed a partnership. The total investment was $800,000. Quincy and Rosalina own 36.2% and 24.8% . How much money did Jamal invest? Show all steps and all work for full points
Answer:
402$
Step-by-step explanation:
Determine the coordinates of A(2,3) after a reflection in the line y=2
Answer:
When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is transformed into its opposite (its sign is changed). If you forget the rules for reflections when graphing, simply fold your paper along the x-axis (the line of reflection)
HELP QUIC
What is the value of x?
Enter your answer in the box.