Answer:
Answer: Your answer would have to be 12x<180
He took 14 friends.
Step-by-step explanation:
hope this helps and have a great rest of your day!
Fred's art project involves a series of parallel stripes. If he starts by drawing the line 8x+2y=7, select all the equations that could represent lines that could also be drawn for his art project.
Options:
A. [tex]y-1 = 4(x + 8)[/tex]
B. [tex]y = -4x + 15[/tex]
C. [tex]16x + 4y = 9[/tex]
D. [tex]y=-4x[/tex]
E. [tex]4x + 2y = 3[/tex]
Answer:
B. [tex]y = -4x + 15[/tex]
C. [tex]16x + 4y = 9[/tex]
D. [tex]y=-4x[/tex]
Step-by-step explanation:
Given
[tex]8x + 2y = 7[/tex]
Required
Select all equations that could be used.
Equation that could be used in place of [tex]8x + 2y = 7[/tex] must have the same slope.
Calculating the slope of [tex]8x + 2y = 7[/tex]
Make y the subject
[tex]2y = 7 - 8x[/tex]
[tex]y = \frac{7}{2} - \frac{8x}{2}[/tex]
[tex]y = \frac{7}{2} - 4x[/tex]
[tex]y = - 4x + \frac{7}{2}[/tex]
Using y = mx + b
Where
[tex]m = slope[/tex]
The slope is -4
Option A.
[tex]y-1 = 4(x + 8)[/tex]
Open bracket
[tex]y - 1=4x + 32[/tex]
Collect Like Terms
[tex]y - 4x = 32 + 1[/tex]
[tex]y - 4x = 33[/tex]
Make y the subject
[tex]y = 4x + 33[/tex]
The slope of this line is 4;
Hence, it can not be used.
Option B.
[tex]y = -4x + 15[/tex]
The slope of this line is -4;
Hence, it can be used.
Option C.
[tex]16x + 4y = 9[/tex]
Solve for4y
[tex]4y=9 - 16x[/tex]
Solve for y
[tex]\frac{4y}{4} =\frac{9}{4} - \frac{16x}{4}[/tex]
[tex]y =\frac{9}{4} - 4x[/tex]
[tex]y = - 4x + \frac{9}{4}[/tex]
The slope of this line is -4;
Hence, it can be used.
D. [tex]y=-4x[/tex]
The slope of this line is -4;
Hence, it can be used.
E. [tex]4x + 2y = 3[/tex]
Solve for 2y
[tex]2y = 3 - 4x[/tex]
Solve for y
[tex]\frac{2y}{2} = \frac{3}{2} - \frac{4x}{2}[/tex]
[tex]y = \frac{3}{2} - 2x[/tex]
The slope of this line is -2;
Hence, it can not be used.
From the calculations above, equations B, C and D are equivalent
Good Night Bewtiful peeps!
What is 2097÷4?
Answer: 2097÷4 = 524.25
Answer:
524.25
Step-by-step explanation:
Good bewtiful to u too
HELPPPP!!!!!!
1) Consider the sequence:
7,4, 1, -2
A) Arithmetic or Geometric (and why?)
B) What is the common difference or common ratio?
C) Explicit equation:
D) Find the 12th term of the sequence:
Ng Order of Operations George has $15. He would like to know if he has enough money to see a movie ($9.00) and buy a pretzel ($2.65), a drink ($1.35), and two veggie cups ($1.74 each). George incorrectly used this numerical expression to decide if he had enough money. 15 - 9 + 2.65 + 1.35 + 2(1.74) Use the order of operations to simplify this expression.
Answer:
No, George does not have enough money to buy everything.
The correct expression is:
15 - 9 - 2.65 - 1.35 - 2(1.74)
Step-by-step explanation:
Given that:
Money present with George initially = $15
Money required to see the movie = $9
Money required to buy a pretzel = $2.65
Money required to buy a drink = $1.35
Money required to buy 2 veggie cups = $2(1.74)
To find:
Whether there is enough money with George to complete all the tasks.
Solution:
First of all, let us calculate all the money required and then we can subtract all the money from the initial amount to find whether there is enough money present with George.
If the result is in positive, there is enough money with George.
Total money required for all the activities = $9 + $2.65 + $1.35 + $2(1.74) = $16.48
Expression = $15 - $16.48 = -$1.48
The result is negative, therefore there is not enough money.
The correct expression is:
15 - 9 - 2.65 - 1.35 - 2(1.74)
Please help will give Brainliest, 5 stars and Thanks!
Mark takes out a $238,000 mortgage for 30 years. Instead of paying his monthly payment of $1,220.09, he decided to pay $1,420.09. This leads to Mark paying off the entire mortgage in 22 years and 5 months. Mark calculates the percent of the total loan he pays back in interest with and without the extra payments. What is the difference between Mark's calculated percentages?
Answer:
24.04%
Step-by-step explanation:
Given that:
Mortgage = $238,000
Number of years = 30
Monthly payment without extra payment= $1220.09
Monthly payment with extra payment = $1420.09
Total amount paid :
Number of months * monthly payment
12 months = 1year
30 years = (30 * 12) = 360 months (without extra payment)
22 years 5 months = (22 * 12) + 5 = 269 months (with extra payment)
Amount paid without extra payment :
$1220.09 * 360 = $439232.4
Percentage of total loan paid as interest :
((439232.4 - 238000) / 238000) * 100%
= 0.8455142 = 84.55%
Amount paid with extra payment :
$1420.09 * 269 = 382004.21
Percentage of total loan paid as interest :
((382004.21 - 238000) / 238000) * 100%
= 0.6050597 = 60.51%
Difference between percentages:
84.55% - 60.51% = 24.04%
Write an equation of the line that passes through (–2, 8) and (–4, –4).
PLEASE HEEEELP MEEE! PLEASE ACTUALLY PROVIDE AN EXPLANATION! BEST EXPLANATION AND ANSWER GETS BRAINLIEST! THANKS
Answer:
sorry bro
Step-by-step explanation:
Answer:
Y=6x+20
Step-by-step explanation:
Please help me out.
Answer:
i think its the 3rd one or the second one........
Step-by-step explanation:
if im wrong pllzzzzz dont report me....
what does a decimal look like
Answer:
It could look like 3.2, 0.9, 22.64 it is a number that has a decimal point in it somewhere
Step-by-step explanation:
Hello can you solve 2+2
Thx and bye
Answer:
4
Step-by-step explanation:
[tex] \ \sqrt{348} [/tex]
Answer:
explanation:
√348 =
18.6547581062
If a projectile is fired straight upward from the ground with an initial speed of 64 feet per
h(t) = - 16t? + 64t. Find the maximum height of the projectile.
The maximum height of the projectile is
(Simplify your answer.)
Answer:
h = 64 feet
Step-by-step explanation:
If you graph the function you see that 64 feet is the maximum of the parabola so this is the max height that the projectile reaches.
Select the points that are solutions to the system of inequalities. Select all
that apply.
A. (1,2)
B. (-10,10)
C. (-2,0)
D. (0,10)
Answer:
B and D
Step-by-step explanation:
What best describes the expression 6 over y? (1 point)
A. 6 times some number
B. 6 divided by some number
C. 6 minus some number
D. 6 more than some number
Brainliest goes to the first answer, thank you!
Last weekend, Joshua's parents drove 810 miles in 9 hours when they came to visit him. What was their
constant speed?
Answer:
90mph
Step-by-step explanation:
Answer:
90 miles per hour
Step-by-step explanation:
810 / 9
1. Marcus needs to bike at least 80 miles this
week for his training. If he has already biked 25
miles this week, then how many miles should he
bike on each of the 5 remaining days this week?
Variable:
Inequality:
Solution:
Please help fast I will give brainliest! :)
He should ride 11 miles on each of the other 5 days. 11 times 5 equals 55 + 25 = 80.
Tom and Jason both collect marbles Tom has collected 510 marbles and Jason has collected 842 marbles. How many marbles do they on together..?Estimate the total number of marbles nearest to hundred
Answer:
They had 1,352 marbles all together, rounded to the nearest hundred, 1,400.
Step-by-step explanation:
All we have to do is add the number of marbles they collected.
510 + 842 = 1,352
1,352 rounded to the nearest hundred is 1,400.
yall I need help QUICK
Write an equation of a line that passes through the x-intercept 4 with slope -3
PLEASE HELP
Answer:
y=-3x-12
Step-by-step explanation:
:)
A speed limit is 35 mph. A car is travelling 10 mph over the speed limit. I’d that a sum of 0
Answer:
The car is going 45 mph
Step-by-step explanation:
Since the speed limit is 35 mph and the car is 10 mph over the speed, we can add them to find out how fast the car is going. We can solve 35+10 which will give us 45. So it is not a sum of 0 but instead a sum of 45.
(hope this helped)
Answer:
35+10 =45
Step-by-step explanation:
add 10 to 35 then divide by 2
The radio station in North Pole, AK plays Christmas songs all day and night from Thanksgiving through Christmas. They play 12 per hour for 15 hours a day, and 8 songs per hour for the rest of the day. They like to have a mix of traditional and modern songs with a relationship of 9 traditional songs to every 5 modern songs. How many traditional songs and how many modern songs will they play in one day?
Answer:
Traditional = 162
Modern = 90
Step-by-step explanation:
Given that:
12 songs per hour for 15 hours
8 songs per hour for the rest of the day ; (24 - 15) = 9 hours ;
That is ; 8 songs per hour for 9 hours
Total number of songs played per day :
(12 * 15) + (8 * 9) = 252 songs
If songs are mixed using the ratio 9:5 (traditional : modern)
Traditional songs :
(9 * 252) / (9 + 5) = 162
Modern songs :
(5 * 252) / (9 + 5) = 90
Write the expression in simpleist form PLZ WILL GIIVE BRAINLIEST
4 + 4x + 6x - 3
1. 29x + 3
2. 75x + 3
3. 22x + 1
4. 10x + 1
PLEASE HELP...
A car is bought at the price of $20,000. The value decreases at the rate of .20 every year (t). The exponential expression 20,000(0.80)t describes this situation. Find the price of the car after 3 years.
Question 2 options:
A)
$10,240
B)
$11,874
C)
$5,892
D)
$9,399
Answer:
$10,240
Step-by-step explanation:
y = 20,000 (.80)^t
y = 20,000 (0.80)^3
0.8^3 = 0.512
0.512 x 20,000 = 10240
Your answer would be A. $10,240.
solve tje equation for t. Round the answer off to two places after the decimal point.
A spherical balloon is inflated with gas at a rate of 500 cubic centimeters per minute. (a) How fast is the radius of the balloon changing at the instant the radius is 40 centimeters
Answer:
[tex]\mathbf{ \dfrac{dr}{dt} = 0.03730 \ cm/min}[/tex]
Step-by-step explanation:
The rate of the inflation of the balloon with time can be denoted as:
[tex]\dfrac{dv}{dt} = 500 \ cm^3/m[/tex]
To determine; how fast does the radius change with time.
i.e.
[tex]\dfrac{dr}{dt}=???[/tex]
where r = 40 cm and the volume of sphere = [tex]\dfrac{4}{3} \pi r^2[/tex]
∴
[tex]\dfrac{dv}{dt}= \dfrac{4}{3} \pi 2(r^3) \dfrac{dr}{dt}[/tex]
[tex]500= \dfrac{4}{3} \pi \times 2(40^2) \dfrac{dr}{dt}[/tex]
[tex]500= 13404.13 \dfrac{dr}{dt}[/tex]
[tex]\dfrac{500}{13404.13} = \dfrac{dr}{dt}[/tex]
[tex]\mathbf{ \dfrac{dr}{dt} = 0.03730 \ cm/min}[/tex]
Use the polygon on the coordinate plane to complete the statements. This polygon is a The length of side RV The length of side ST
Answer:
pentagon
is 14 units
cannot be determined
Step-by-step explanation:
Answer:
Step-by-step explanation:
Use the polygon on the coordinate plane to complete the statements. This polygon is a The length of - Brainly.com
yw thanks for the points have a nice day :}
A 14-ounce bottle of Nesquik chocolate milk cost $1.89. What is the cost per ounce?
Answer:
Step-by-step explanation:
1.89/14= .135
estimating to the nearest cent would be .14
Please help The sum of two numbers is 36 and the difference is 6. What are the numbers?
Answer:
15 and 21
Step-by-step explanation:
Answer:
15 and 21
Step-by-step explanation:
−2 4/5 ÷ (−7) i need this i will give brainiest
Answer:
0.4
Step-by-step explanation:
Pls mark me brainliest! :D
Answer:It is 0.4 or 2/5
Step-by-step explanation:
Hope this helps!!
Hey peeps I need help pls! Roger says that 10% of a number will always be less than 25% of any other number.
Complete one inequality to support Roger's claim and one to show that he is incorrect.
PLSSSSSSSSS HELp
Answer: [tex]0.1x-0.25y<0[/tex]
Step-by-step explanation:
Let the two numbers be x and y
10% of the first number will be;
10% of x
[tex]=\frac{10}{100} of x[/tex]
[tex]=0.1x[/tex]
25% of the other number will be ;
25% of y
[tex]0.25y[/tex]
If 10% of the first number is less than 25% of the other number, this is expressed as;
[tex]0.1x<0.25y[/tex]
[tex]0.1x-0.25y<0[/tex]
Hence the required inequality is [tex]0.1x-0.25y<0[/tex]
PLEASE MARK ME AS BRAINLIEST
Choose the answer that shows exponential decay?*
A) y=1/3•2^x
B) y=4•(1/2)^x
C) y=4•2^x
D) y=1/2•2^x
