Answer:
1
Step-by-step explanation:
Answer:
For X:
Divide each term by 9
and simplify.
x= y/9 + 8/9
For Y:
y= 9x−8
During the school day, you spend 2 hours in math, 1 hours in science, 2 hours in ELA and 1 hour in art and 2 hours at a friends house studying for your math tests. What percent of the time do you spend at your friend's house studying for your math tests?
Answer:
Step-by-step explanation:
More than two hours of homework may be counterproductive, research suggests. GSE scholar Denise Pope finds that students in high-achieving schools who spend too much time on homework experience more stress and health problems. ... Students in these schools average about 3.1 hours of homework each night
Does anyone understand this?
Answer:
C
Step-by-step explanation:
What is the equation of the line in slope-intercept form?
Answer:
y=6-5
Step-by-step explanationy
Mrs.Stone is three times older than her younger daughter, Joyce, but only two times older than her older daughter, Alex. How old is Mrs.Stone now, if 9 years ago Alex was two times okder than Joyce? Mrs.Stone is three times older than her younger daughter, Joyce, but only two times older than her older daughter, Alex. How old is Mrs.Stone now, if 9 years ago Alex was two times okder than Joyce?
Answer:
54 years
Step-by-step explanation:
Joyce age = x
Alex age = y
3x = 2y - - - (1)
y - 9 = 2(x - 9)
y - 9 = 2x - 18
-9 + 18 = 2x - y
9 = 2x - y
y = 2x - 9 - - (2)
3x = 2y
3x = 2(2x - 9)
3x = 4x - 18
18 = 4x - 3x
18 = x
Hence,
Mrs stone is 3 * 18 = 54 years
Let x=
-
11
8
and y=
11
4
0
Which expression has a negative value?
Copyright 2017 Open Up Resources
Select one
OA. x+y
OB. xy
OC. x.y
OD. x/y
Answer:
OD. x/y
Step-by-step explanation:
I know I haven't been on this app for a long time but can ya'll help me
Answer:
2774
Step-by-step explanation:
start by multiplying 2 by 7, the answer is 14 put the 1 above the 8 in 1387 then put the 4 under the equation, similar to addition. repeat but next time when you multiply 2 by 8 add the 1 (from the previous multiplication) to the answer under and put the 1 from 17 on top of the 3. you get it?
Anyone know how to do this??
Answer:
no
Step-by-step explanation:
easy math please help
Answer:a and d
Step-by-step explanation:
Which statement best describes parallel lines?
Parallel lines intersect at exactly one point.
Parallel lines intersect at exactly one point. ,
Parallel lines intersect infinitely many times.
Parallel lines intersect infinitely many times. ,
Parallel lines have equal slopes.
Parallel lines have equal slopes. ,
Parallel lines have negative reciprocal slopes.
Answer:
Step-by-step explanation:
Parallel lines have identical slopes and different y intercepts.
y = 3x + 2
y = 3x + 9
These lines are parallel with the same slopes (3) and different y intercepts (2 and 9)
The cost price of a washing machine is $15,480 if the selling priceis $17,000 what is the profit or loss
Answer:
profit
Step-by-step explanation:
the actual price is 15 480 and the seller sold it for 17 000
which he made a profit of 1520
What is the slope of the line that passes through the points (-10, –4) and (10, -29)? Write your answer in simplest form. Answer: Submit Answer undefined attempt i out of
Answer:
-5/4
Step-by-step explanation:
Which expression is equivalent to
8(3x+4w)
Answer:
24x+32w
Step-by-step explanation:
Giving BRAINLESS TO THE CORRECT ANSWER
Answer:
-16?
Step-by-step explanation:
the correct answer i
- 16
how do you find the slope, I really need help.
Answer:
-1/10
Step-by-step explanation:
its down 1 and right 10 so you know the slope is -1/10
(can I get brainliest please)
URGENT! TIMED QUESTION, WILL GIVE BRAINLIEST!
The height of a punted football is modeled by the following quadratic function:
h(t) - -5t2 . 40
where the height is measured in meters after t seconds.
+
a. How many seconds will it take the ball to hit the ground?
c. What is the maximum height of the ball?
Answer:
Step-by-step explanation:
Part a
When the ball hits the ground it has covered the height of zero meters so we replace h(t) with zero
[tex]h(t)=-5t^2+40t\\0=-5t^2+40t\\40t-5t^2=0\\5t(8-t)=0\\5t=0 \ \ \ , \ \ \ 8-t=0\\t=0 \ \ \ , \ \ \ t=8\\[/tex]
So it will take 8 seconds for the ball to hit the ground we another value
t = 0 seconds is when the ball was thrown and after 8 seconds the balls hits the ground
Part c
The ball reaches its maximum height when the velocity is zero.
So as this functions represents the displacement of the ball h(t) we differentiate it to get the velocity equation, so we differentiate h(t) with respect to t.
[tex]v=-10t+40[/tex]
so now we replace the velocity which is v with a zero because the ball reaches its maximum height when the velocity is zero.
[tex]0=-10t+40\\10t=40\\t=40/10\\t=4[/tex]
so now we insert the value of t = 4 into the equation of h(t) to get the height.
[tex]h(t)=-5t^2+40t\\h(4)=-5(4)^2+40(4)\\h(4)=-80+160\\h(4)=80\\[/tex]
so the maximum height of the ball is 80 meters.
Part d
The y-intercept of the graph is zero, and it represents that there is no initial height covered by the ball or the ball is actually thrown from already a height of x meters, as we can see from the equation the y-intercept is zero which means the height covered by the ball is 0 meters when time is zero.
So the point is actually at the Origin (0 , 0).
Part e
We can see that the origin (0 ,0) and (8,0) are the x-intercepts of the graph as solved from part A
We can see that the stationary point or the maximum point is at (4,80) which means the maximum height of the ball is 80 meters when the time is 4 seconds as solved in part C
Graph attached.
Solve the Equation:
3x-4=10 what is x
Answer:
14
3
Step-by-step explanation:
Given f(x) and g(x) = f(x) + k, use the graph to determine the value of k.
Explanation:
Start at a point like (0,2) which is on the blue f(x) line.
Move upward until you reach the red g(x) line. You should move up 3 units. Every point on f(x) follows the same pattern to land on a corresponding point on g(x). Therefore, this moves the entire blue line up 3 units.
This leads to k = 3
So g(x) = f(x) + 3
Answer: 3
Step-by-step explanation: This is because I took the test and because if you look at the graph its on 5 and 2. An easy way to look at it is what is 5-2 but you'd have to figure out what the answer was first. Between 5 and 2 is 3. Hope this helped!
5. The Smith family paid $146.50 for dinner. If they tipped 20%. How much
did they spend total including the tip?
Answer:
$175.80
Step-by-step explanation:
Answer:
175.80$
Step-by-step explanation:
In order to find the answer to this question you must first find 20% of the cost for the dinner, then add that answer to the cost of the dinner to receive your answer.
[tex]146.50[/tex]
[tex]20 =146.50[/tex]
[tex]Y=P\times X[/tex]
[tex]20\times146.50[/tex]
[tex]20\div100=0.2[/tex]
[tex]0.2\times146.50[/tex]
[tex]0.2\times146.50=29.3[/tex]
[tex]=29.3[/tex]
Now add:
[tex]146.50+29.3=175.80[/tex]
[tex]=175.80[/tex]
Hope this helps.
What is the first step in solving this expression? 28 - 11 + 6 ● 3 + 5
Thanks,
Answer:
First Step of solving this expression: Multiply
Answer for the expression: 40
Step-by-step explanation:
To find the first step you need to follow the order of operation
Parenthesis
Exponents
Multiplication and Division
Addition and Subtraction
Since there are not Parenthesis or Exponents then you may skip that step but there is a multiplication sign so the first step is Multiplication
To solve multiply 6 and 3
Which is 18
Now the expression looks like this:
28-11+18+5
Now simplify from left to right:
28-11=17
17+18=35
35+5=40
Hope this helps!
Answer: Multiply 6*3, then add 18+5, then subtract 28-11, then add them:
17 + 23 = 40!
Step-by-step explanation: PEMDAS:
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
Please help brainliest if correct
Answer: H
Step-by-step explanation:
7% of 21 is 1.47
Answer:
H. 1.47$ tax
Step-by-step explanation:
price of pants is 21 plus 7 percent tax
21/100=0.21
0.21 is 1 percent multiply by 7
1.47 dollars tax
Pregunta En cierto supermercado, Monica pagó $ 3,20 por 2 libras de manzanas y 2 libras de naranjas, mientras que Sarah pagó $ 4,40 por 2 libras de manzanas y 4 libras de naranjas. A estas tarifas, ¿cuál es el costo, en dólares, de 3 libras de naranjas?
Answer:
Step-by-step explanation: 14.2
what is (3x² + 5x - 9) + (7x² + 2x + 10)?
I will give brainiest to the answer with step-by-step explanation :
Answer:
10x^2+7x+1
Step-by-step explanation:
Let's simplify this step-by-step.
3x^2+5x−9+7x^2+2x+10
=3x^2+5x+−9+7^x2+2x+10
After, combine like terms. (Simplify the expression)
Here is a step-by-step row.
= 3x^2+5x+-9+7x^2+2x+10
= (3x^2+7x^2)+(5x+2x)+(-9+10)
= 10x^2+7x+1
That is the most simplified form, I hope this helped!
I also adore your profile picture, it's so aesthetic ♡
..you watch anime? if so, me too! here's the answer, 18 :))
step-by-step explanation:
3 + 5= 8
8 - 9= -1
-1 + 7= 6
6 + 2= 8
8 + 10= 18
your answer is 18!!
97.8 to the nearest tenth.
Answer: it is already rounded to the
If you mean the nearest tenths then the answer is 97.8 but if you mean the nearest tens then the answer is 100 hope this helps :)
Step-by-step explanation:
Luis distributes 49 roses equally among seven friends then three of his friends combined the roses they received to make a bouquet how many roses are in this bouquet there are blank roses in this bouquet
Answer:
The are 21 roses in the bouquet
Step-by-step explanation:
Since the 49 roses are distributed evenly amongst the 7, then what each of the seven will get would be 49/7 = 7 roses
So 3 of the friends combine every of theirs to make a bouquet
The number of roses in the bouquet will be 7 + 7 + 7 = 21 roses
Fiona can make 8 cards in 12 hour. She divides to find the number of cards she can make per hour, but she makes a mistake. Three of these reasons explain why her answer must be wrong. Which does NOT?
Answer:
2/3 card per hour
Step-by-step explanation:
The correct calculation is given below
The number of cards she can make per hour is :
12 hours = 8 cards
1 hour = x cards
Cross Multiply
12 hours × x cards = 8 cards × 1 hour
x cards = 8 cards × 1 hour/12 hours
x cards = 2/3 card
She can make 2/3 card per hour
Answer:
a
not C B D A
Step-by-step explanation:
This month, a marching band has 60 musicians. If the number of musicians in the band last month was 51 members, what percent of increase was this? (Round to the nearest percent)
Answer: Happy holidays!
A soccer team uses 5-gallon coolers to hold water during games and practices. Each cooler holds 640 fluid ounces. The team has small cups that each hold 6.25 fluid ounces and large cups that each hold 8.75 fluid ounces. 1. The team fills c coolers for practice. During practice, the players pour s small cups and g large cups of water. Write an expression that represents the amount of water that remains in the coolers.
Answer:
640c - 6.25s - 8.75g
Step-by-step explanation:
640c - 6.25s - 8.75g
11. $1.44 for 12 pencils
Answer:12 cents per pencil
Step-by-step explanation:
1.44/12
What’s the slope of the perpendicular line that passes through (-1, 12) and (-6, 18).
Answer:
[tex]m=-\frac{6}{5}[/tex]
Step-by-step explanation:
10x^3-35x^2 please help me
Answer:
5x^2(2x-7)
Step-by-step explanation:
Hope this helps!
