Answer: Be careful on you love
Step-by-step explanation: I got heartbroken
Use the given x and y values to write a direct variation equation
x=5, y=30
Answer:
The direct variation equation is y = 6x
Step-by-step explanation:
The direct variation equation is y = kx, where
k is the constant of variationTo find the value of k, use the initial values of x and y
∵ y = 5, y = 30
∵ y = k x
→ Substitute the values of x and y to find k
∵ x = 5 and y = 30
∴ 30 = k (5)
∴ 30 = 5k
→ Divide both sides by 5
∴ [tex]\frac{30}{5}=\frac{5k}{5}[/tex]
∴ 6 = k
→ Substitute it in the form of the equation
∴ y = 6x
The direct variation equation is y = 6x
A local pizza restaurant offers a gold card for loyal customers. The gold card costs $25 for a year. With a gold card, each large pizza is a discounted cost of $12. If customers don’t have a gold card, a large pizza costs $18. How many pizzas must you purchase in a year for the gold card to be cheaper?
Answer:
5 pizzas
Step-by-step explanation:
18-12=6 each pizza with card saves 6$
$25 card cost÷$6 savings per pizza=4.16 pizza to break even. round up since cant buy fraction of pizza.
check
5 pizza with card 12 *5=60
60 + 25 = 85 spent in total
$5 *$18 = $90, no discount
4 pizza would be 73 with discount and 72 without
Sohie’s mom cans jelly. She fills each jar with 1/2 a pint of jelly. If she made 1 7/10 pints of jelly, which expression can be used to find how many jars Sophie’s mom can fill?
Answer:
Number of jar Sohie's mom can make can be found out by dividing the total amount by the amount in one jar, so we can frame a equation like this,
Let the number of total jar be x,
x = (1 7/10) / 1/2
That is the answer, let us solve this equation,
x = 1 7/10 / 1/2
=> x = 17/10 * 2/1
=> x = 17/5 * 1/1
=> x = 17/5
17/5 = 3.40
Therefore, she can pack 3.4 jars of jelly.
If my answer helped, please mark me as the brainliest!!
Thank You!!
Answer:
if im correct i think the awnser is that she can pack 3.4 jars of jelly.
Step-by-step explanation: Please tell me if im correct or not
8. |13|- |-71 =
a. 6
b. - 6
c. 20
d. - 20
Answer: A
Step-by-step explanation:
The |13| means absolute value. Absolute value tells you that the value inside is always positive. Even if you have a negative number in the absolute value bars, it automatically becomes positive.
|13|-|-7| [rewrite without absolute value]
13-7 [subtract]
6
Now, we know that the answer is 6.
Answer:
i think 6
beacase 13-71 is 6
6) Anita bought a pie and ate 30% of it yesterday afternoon. In the night, her brother Bob ate 40% of what was left. The rest was kept for their sibling Sheila. What percentage of the pie was left for Sheila?
Answer: 30%
Step-by-step explanation:
Pie eaten by Anita = 30%
Pie eaten by Bob = 40%
total Pie = 100%
Pie left for by Sheila = 100 - (30 + 40)
= 100 - 70
= 30%
therefore, pie left for Sheila = 30%
Hope it helped u,
pls put thanks
and mark as the Brainliest.
Answer:70%
Step-by-step explanation:
7 to the power of -3
Answer:
one over 343 hope this helps
Step-by-step explanation:
help please asap
jahahhahahahahaha
Answer:
No
Step-by-step explanation: Try the vertical line test. If the line goes directly through the angle or shape, it's not a function. Let me know if you want an example.
I've attached an image. This rule applies to every angle.
2x+3=x-4
what is the solution of this equation?
Answer:
2x+3=x-4
-x. -x
x+3=-4
-3. -3
x = -7
How much less than -2 is -6?
Answer is :
-4
Step-by-step explanation:
because -2-4=-6
Use the formula for the area of a rectangle A=LW to answer the question. A rectangle has a length of n units. Its width is 8 units more than its length. What is the area of the rectangle?
A. 2n +8
B. N(n+8)
C. N(n-8)
D. 2+8n
Please help and explain I dont get it
Answer:
d is ur answer maybe ok ok ok
Answer:
B. N(n+8)
Step-by-step explanation:
A rectangle's area is Length x Width
The rectange's length is not known to us. N is it's variable
It says the width is 8 units mor then the length and ask for the are of the rectangle.
Now since rectangle's area is length times width we multiply n (the length) with the width (8+n).
This would be N(n+8)
To test the impact performance of a 10 cm thick gymnastics mat, a 20 kg cylindrical
mass is dropped onto the mat from a height of 1 m above the mat. During the impact,
the cylinder’s vertical velocity reaches zero at the instant the mat has compressed to
only 4 cm thick.
a. How much kinetic energy does the cylinder have at the instant just before it
contacts the mat?
b. How much work does the mat do to stop the fall of the cylinder?
c. What average vertical force does the mat exert on the cylinder during the impact,
from contact until the cylinder’s vertical velocity is zero?
Answer:
A)196J
B)-208J
C)3467J
Step-by-step explanation:
We are given that a 20 kg cylindrical mass is dropped onto the mat from a height of 1 m above the mat. During the impact, the cylinder’s vertical velocity reaches zero at the instant the mat has compressed to only 4 cm thick.
So, The Mat gets compressed by : 10cm - 4 cm = 6 cm=0.06 m
a)
Using Conservations of energy
Potential energy at the top = Kinetic energy at the point before touching the surface
Kinetic energy = mgh= [tex]20 \times 9.8 \times 1 = 196 J[/tex]
b)
Work done by the mat do to stop the fall of the cylinder =[tex]-mg(h+0.06)=-20 \times 9.8(1+0.06)=-208 J[/tex]
C)
Work done=[tex]\text{Average force} \times \text{ Compression of mat}[/tex]
[tex]208=F \times 0.06[/tex]
F=3467J
How do you do this question?
Answer:
Limit = 2
Step-by-step explanation:
[tex]\sum _{n=1}^{\infty }\frac{2^n}{3^n}\\= \sum _{n=1}^{\infty \:}\left(\frac{2}{3}\right)^n\\\\= \sum _{n=0}^{\infty \:}\left(\frac{2}{3}\right)^n-\left(\frac{2}{3}\right)^0[/tex]
[tex]\sum _{n=0}^{\infty \:}\left(\frac{2}{3}\right)^n=3,\\\\= 3-\left(\frac{2}{3}\right)^0\\= 2[/tex]
In this case it does converge, as 2/3 is between 1 and 0
Answer:
0
Step-by-step explanation:
2ⁿ / 3ⁿ = (⅔)ⁿ
⅔ is less than 1, so as n approaches infinity, the sequence approaches 0.
Hideyko has 3/5 yards of ribbon to tie on balloons for the festival. Each balloon will need 3/10 yard of ribbon. How many balloons can Hideko Tie with ribbon?
Answer:
The answer would be 2
Step-by-step explanation:
Please mark me brainiest B) :) ;) B]
The vet said Lucy's cat Mitten weighs 8 2/6 pounds. This is 1 5/6 pounds more than Mittens weighed last year. How much did Mitten weigh last year?
Answer:She weighed 7 1/4
Step-by-step explanation: just took the test
6.53 x 10^7 is more than, the same as, less than 65300000?
Answer:
same as
Step-by-step explanation:
Answer:
Same as
Step-by-step explanation:
A transportation engineer uses the formula, R = 1600/15+127e, to determine the minimum radius of curvature (R) in meters, for a roadway with a 40 km/hr design speed and a maximum superelevation rate (e). What is the maximum superelevation rate recommended if the radius of curvature is 350 meters? Answer as a decimal, rounded to two decimal places.
Answer:
The value is [tex] e = 1.92 [/tex]
Step-by-step explanation:
From the question we are told that
The formula for radius of curvature is [tex]R = \frac{1600}{15} +127e[/tex]
The design speed of the roadway is [tex]v = 40 \ km/hr[/tex]
The value of radius of curvature considered R = 350 m
From the equation given e is the superelevation rate
Now making the subject of the formula
[tex] e = \frac{R}{127} - \frac{1600}{1905} [/tex]
At R= 350
[tex] e = \frac{350 }{127} - \frac{1600}{1905} [/tex]
[tex] e = 1.92 [/tex]
Here, we are required to determine the maximum superelevation rate, e (rounded to 2 decimal places) recommended if the radius of curvature, R is 350 meters.
The answer is e = 1.92 (rounded to 2 decimal places).
First, from the information given, the minimum radius of curvature, R is related to the maximum superelevation rate, e by the formular;
R = (1600/15) + (127e)
Therefore, to evaluate the value of e for R = 350, we have;
350 - (1600/15) = 127e.
350 - (1600/15) = 127e.350 - 106.667 = 127e
Therefore, 243.333 = 127e.
Therefore, e = 1.9160meters
As a result, The maximum superelevation rate, e recommended if the radius of curvature, R is 350 meters is:
e = 1.92 (rounded to 2 decimal places).Read more:
https://brainly.com/question/21140562
Andre paid $13 for 3 books. Diego bought 12 books priced at the same rate. How much did Diego pay for the 12 books? Explain your reasoning.
The amount of money Diego paid is required.
The amount of money Diego paid was 52 dollars.
The cost of 3 books is 13 dollars
[tex]3\ \text{books}=13\ \text{dollars}[/tex]
[tex]1\ \text{book}=\dfrac{13}{3}\ \text{dollars}[/tex]
Diego bought 12 books
[tex]12\ \text{books}=12\times \dfrac{13}{3}=52\ \text{dollars}[/tex]
The amount of money Diego paid was 52 dollars.
Learn more:
https://brainly.com/question/19091928
https://brainly.com/question/18959692
4.4 = –13.6 + 3t how would i solve this step by step
Answer:
t = 6
Step-by-step explanation:
First, add 13.6 (inverse operation)
18 = 3t (divide by 3)
6 = t
sub in to check
Answer:
t=6
Step-by-step explanation:
4.4=-13.6+3t [add -13.6 to both sides]
18=3t [divide 3 from 18]
t=6
Jordan borrowed some money from his friend in order to help buy a new video game system and agreed to pay the friend back a constant amount each week. Jordan originally borrowed $120 from his friend and after 2 weeks, he still owed his friend $90. Write an equation for L,L, in terms of t,t, representing the amount Jordan owes his friend after tt weeks.
solve for d -38d-57-19d+76
Answer:
You cannot solve for d.
But, simplified it is 19d+19
Step-by-step explanation:
38d-57-19d+76
(38d-19d)+(-57+76)
19d+19
hope this helps :)
Answer:
d ≤ -7
Step-by-step explanation:
the first person is so wrong
Help
A photo 5 inches wide and 8 inches long is enlarged.
How wide is the new photo if it is (1)12 inches; (2)20 inches; (3)10 inches long?
Step-by-step explanation:
if the new photo is 12 inches long than the photo is enlarged
12/8=3/2
so the new photo is (3/2)*5 =15/2=7.5 inches wide.
Now,about the new photo 20 inches long it means that is enlarged 20/8=5/2 inches
so the new photo is wide 5*(5/2)=25/2=12,5 inches.
The photo 10 inches long is enlarged 10/8=5/4 inches.So the new photo is 5*(5/4)=25/4=6,25 inches wide.
Write an equation for each line in slope-intercept form.
Answer:
y = x + 7
Step-by-step explanation:
The slope-intercept form of a line is:
y = mx + b
where m is the slope and b is the y-intercept.
Looking at the graph, we can see that the line intersects the y-axis at y = 7. So 7 would be our y-intercept.
To find the slope, we would divide the rise of the line by the run. Or m = rise/run. From looking at the graph, we can see that for every 1 unit the line moves in the x-direction, the line moves in the y-direction by 1 unit. Therefore, the rise would be 1 and the run would be 1. 1/1 = 1 so the slope of the line would be 1.
Plugging in 7 for b and 1 for m into the equation for the slope-intercept form, we get:
y = x + 7
So that would be the equation for the line in slope-intercept form.
I hope you find my answer and explanation to be helpful. Happy studying.
Michael had $550 in his savings account. He took out $30.75 every month for one year. What is the net change in Michael’s account balance following these withdrawals?
A.
-$519.25
B.
-$369
C.
$369
D.
$519.25
I believe it to be $369
I NEED THIS ANSWER NOW PLS I'LL GIVE YOU 30 POINTS IF YOU ANSWER IN THE NEXT COUPLE OF SECONDS
What is the sign of the product (3)(−25)(7)(−24)?
Positive, because the products (3)(−25) and (7)(−24) are negative, and the product of two negative numbers is positive
Positive, because the products (3)(−25) and (7)(−24) are positive, and the product of two positive numbers is positive
Negative, because the products (3)(−25) and (7)(−24) are negative, and the product of two negative numbers is negative
Negative, because the products (3)(−25) and (7)(−24) are positive, and the product of two positive numbers is negative
Answer:
A. Positive, because the products (3)(−25) and (7)(−24) are negative, and the product of two negative numbers is positive
PLEASE HELP IT'S DUE AT 11:59 (5 pts per part)
A. The Clear-Picture Cable Company charges different rates for ordering different levels of cable service. Clear-Picture Cable Company charges $24.95 a month for basic cable services plus $6.95 a month for each additional premium channel. If Stacey's monthly bill is $45.80, how many premium channels is she receiving? Write and solve and equation to answer the question. Show all work.
B. Dan signed a contract for 12 months of basic cable service with 2 premium channels each month. Dan budgeted $400 for this year's cable expenses. EXPLAIN whether Dan budgeted enough money to cover the yearly cost for his cable contract.
(please answer with all work and a full explanation for B. THANKS SO MUCH!!)
Answer:
A. 3 premium channels
B. No, he did not
Step-by-step explanation:
1a. make an equation that shows the price Stacey has to pay each month. x is how many premium channels she's paying for.
24.95 + 6.95x = 45.8
2a. subtract 24.95 from both sides.
6.95x = 20.85
3a. divide both sides by 6.95.
x = 3
1b. make an expression to show the price of Dan's contract. (keep in mind, he has to pay for 2 premium channels for 12 months, so you would have to pay for the premium channels 24 times!)
24.95(12) + 6.95(24)
2b. multiply.
299.4 + 166.8
3b. add.
$466.20
Dan would have to pay $466.20, so no, he did not budget enough money.
This Question !!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
x=800
Step-by-step explanation:
2000=all sides
two sides are 200 &200 =400
the other two are 2000-400=1600
1600/2=800 each
A car travels 90 miles in 1.5 hours. How many miles will it travel in 5 hours if its speed remains the same?
Answer:
300 miles
Step-by-step explanation:
i am doing the same test right now
A suit is on sale for $336, which is 64% of the regular price.
What is the regular price?
Answer:
Hi there!
Your answer is
Regular price is 525$
Step-by-step explanation:
336$ = 64%
/64 to determine 1%
5.25$ = 1%
*100 to determine regular price
525$ = 100%
Reese loves to drink healthy green smoothies. A 16oz serving of smoothie has 170 calories. How many calories are in a 24oz smoothie?
Answer:
255 calories.
Step-by-step explanation:
There are many different ways to solve this, but I only know two.
First I noticed that 16 and 24 were both divisible by 4 so divided 16 by 4 and got 4. Then I divided 170 by 4 and got 42.5. So then I divided 24 by 4 and got 6. I multiplied 6 by 255.
OR
Divide 170 by 16 which gave me 10.625 which is the unit rate or constant of proportionality. So I multiplied 10.625 by 24 and got 255.
PLEASE HELP!!! CONVERT TO STANDARD FORM (y=ax^2+bx+c
f(x)=2(x-3)^2+7
Answer:
y = 2x^2 - 12x + 25Step-by-step explanation:
Given function
f(x)=2(x-3)^2+7Converting to standard form
y = 2(x - 3)^2 + 7y = 2(x^2 - 6x + 9) + 7y = 2x^2 - 12x + 18 + 7y = 2x^2 - 12x + 25