1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
bulgar [2K]
3 years ago
7

Which store is offering the best deal?

Mathematics
2 answers:
Firdavs [7]3 years ago
3 0
i’m pretty sure it’s 8 for 6
Illusion [34]3 years ago
3 0
80 cents each it would be right he’s wrong im right
You might be interested in
The radius of earth is about 6380 km . It is about 3000km larger then the moon write an equation to compute the radius (r) of th
laila [671]

Answer:


Step-by-step explanation:


3 0
3 years ago
A boat on a river travels downstream between two points, 20 mi apart, in one hour. The return trip against the current takes 2 1
kondaur [170]

Answer:

The speed of boat in still water is 14 miles per hour.

The speed of current is 6 miles per hour.

Step-by-step explanation:

Let v represent the speed of boat in still water and c represent speed of current.

We have been given that a boat on a river travels downstream between two points, 20 miles apart, in one hour.

The speed of boat downstream would speed of boat in still water plus speed of current that is (v+c).

The return trip against the current takes 2 1/ 2 hours. The speed of boat against current would speed of boat in still water minus speed of current that is (v-c).

\text{Speed}=\frac{\text{Distance}}{\text{Time}}

Substituting our given values, we will get:

v+c=\frac{20}{1}...(1)

v-c=\frac{20}{2.5}...(2)

Adding both equations, we will get:

v+c+(v-c)=\frac{20}{1}+\frac{20}{2.5}

v+c+v-c=\frac{20}{1}+\frac{20}{2.5}

2v=20+8

2v=28

\frac{2v}{2}=\frac{28}{2}

v=14

Therefore, the speed of boat in still water is 14 miles per hour.

To find the speed of the current in the river, we will substitute v=14 in equation (1) as:

14+c=\frac{20}{1}

14+c=20

14-14+c=20-14

c=6

Therefore, the speed of current is 6 miles per hour.

3 0
3 years ago
Answer the following:
jonny [76]

Answer:

As the product of the slop of both lines is -1.

  • m_1\times m_2=-1
  • 3\times \frac{-1}{3}=-1

Therefore, the given equations are perpendicular.

Step-by-step explanation:

Given the equations

-3x+y=-4

x+3y=6

The slope-intercept form of the equation is

y=mx+b

where m is the slope and b is the y-intercept.

Writing both equations in the slope-intercept form

-3x+y=-4

y=3x-4

So by comparing with the slope-intercept form we can observe that

slope of equation = 3

i.e.

m_1=3

also

x + 3y = 6

3y\:=\:6-x

y=-\frac{1}{3}x+2

So by comparing with the slope-intercept form we can observe that

the slope of equation = -1/3

i.e.

m_2=-\frac{1}{3}

as

The slope of the perpendicular line is basically the negative reciprocal of the slope of the line.

so

The slope m_2 is the negative reciprocal of the slope \:m_1

Also, the product of two perpendicular lines is -1.

i.e.

m_1\times m_2=-1

VERIFICATION:

It is clear that the product of the slop of both lines is -1.

m_1\times m_2=-1

3\times \frac{-1}{3}=-1

Therefore, the given equations are perpendicular.

6 0
3 years ago
You invest an initial $2,000 in an account that has an annual interest rate of 6%, compounded daily. How much money will you hav
alina1380 [7]
<span>t=10, so p(10)=430*1.009^10? hope this helps:)</span>
8 0
4 years ago
If your heart rate is 153 beats per minute during strenuous exercise, what is the time per beat in units of seconds?
MrMuchimi
I think it would be 153/60 sec which is 2.55 seconds per beat.
6 0
3 years ago
Other questions:
  • Find the perimeter of the kite below, round to the nearest hundredth
    15·1 answer
  • 30 points! Can anyone help me in number 9 and 10?? Thank you! :)
    13·1 answer
  • I dont know!!!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • What does [[x]] mean? Thanks!
    10·2 answers
  • Which polynomial is of the fourth degree?
    9·1 answer
  • how do i find the amount of solutions to an quadratic equation by looking at it for example "How many real solutions are there t
    5·1 answer
  • Select the correct answer.
    7·1 answer
  • A rectangeler prism has a volume of 72 cubic units. How many unit cubes will fill the rectangular exactly
    11·1 answer
  • Write the number below as a fraction in its simplest form<br> 0.41 recurring
    15·2 answers
  • How can (a+3)2=a2+6a+9 be derived from the polynomial identity (a−3)2=a2−6a+9?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!