Number of roses 3 6 9 12 15Price (dollars) 9 18 27 36 45 . Find the cost of purchasing 30 roses

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

multiply 30 by 3

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If f(x) = 5x 40, what is f(x) when x = –5?
Rewrite the following quadratic functions in intercept or factored form. Show your work.f(x) = 3x^2 - 12
Elena and Jada are 24.5 miles apart on a path when they start moving toward each other. Elena bikes at a constant speed of 8 miles per hour, and Jada runs at a constant speed of 6 miles per hour. How long does it take until Elena and Jada meet? Explain your reasoning.
Please help me with this

Tickets to a play cost $5 for adults and $2 for children. If 1,750 tickets were sold for a total of $7,100, how many children’s tickets were sold?Can someone explain me how to make this one step by step?

Answers

okay so you have 1750 tickets and 7100 dollars so you gotta do
7100 divided by 5 wich gives you the amount of adult tickets which is 1420 you then have to take 1420 away from 1750 which leaves you with 330

Label adults ticket x and child's ticket y
And then use simultaneous equations

A carpenter purchased 50 ft of redwood and 90 ft of pine for a total cost of $274. A second purchase at the same prices include 80 ft of redwood and 50 ft of pine for a total cost of 335. Find the cost per foot of redwood and of pine

Answers

Answer:

Redwood: $3.50 per foot

Pine: $1.10 per foot

Step-by-step explanation:

The manner that should be approach is by using the substitution method.

Therefore using the information from the question:

50 ft of redwood and 90 ft of pine give a total cost of $274

So we use this information and make a equation using x and y, in this case redwood would be x and pine would be y.

$50x + 90y=274$

We do this for the second purchase also...

$80x+50y=335$

Now, we have two equations that are perfect for the usage of the substitution method.

$50x + 90y=274$

$80x+50y=335$

Using one equation, in this case the top one, we must solve for either x or y (in this case we solved for y)

$90y=274-50x$

$(90y)/(90) =(274)/(90) -(50x)/(90)$

$y=(274)/(90) -(50x)/(90)$

Using this equation from above we insert this into the other equation that deals with the second purchase and solve for x now.

$80x+50((274)/(90) -(50x)/(90))=335$

$80x+152.2-27.8x=335$

$80x-27.8x=182.8$

$(52.2x)/(52.2) =(182.8)/(52.2)$

$x=3.50$

This is the cost of redwood so now we use this answer and plug it in either equation in order to get the cost of pine (y).

$50(3.5)+90y=274$

$175+90y=274$

$(90y)/(90)=(99)/(90)$

$y=1.1$

So therefore you get the two costs by using the substitution method!

~~~~Best!!!

Write an equation in point slope form of the line passes through the point (0,2) and has a slope of m=4

Answers

Answer:

y = 4x + 2

Step-by-step explanation:

This is the formula: $y - y_(1) = m(x - x_(1))$

y - 2 = 4(x - 0) (distribute the 4)

y - 2 = 4x (add 2 on both sides)

y = 4x + 2

That's all she wrote!

Hope this helps ya!!

Help!! Math question ASAP!!!!

Answers

Hello,

Answer B

Is y=(5,t) a solution of -5x+y=-40
==>-5*5+t=-40
==>t=-40+15
==>t=-15

Now change the t to y (all is done to make you not to find the answer)
y=-15.

Write an equivalent expression for n x a using only addition

Answers

n*x*a=n+x+a

If n=1, x=2 and a=3.

n+a+x=x+a+n

90=90✅

n=15
x=20
a=55

Assume that all chickens have 3290 feathers . If it takes you 2.6 seconds to pluck 83.6 feathers , how many hours would it take you to defeat her 7256 chickens ? Answer in units of hours . If you can help me before 2 hours pass I will be so happy !
Thanks ,

Answers

7256chickens * 3290feather per chicken=23,872,240 feathers that you need to pluck.
23,872,240feathers*2.6seconds/83.6feathers*1hour/3600seconds

Solve to get

206.23 hours

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