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
Amanda [17]
3 years ago
12

PLEASE HURRY! I have seen the answers to this questions. I am just seriously wondering how you end up with a 9. I need to show m

y work so please help fast! At a bargain store, Tanya bought three items that each cost the same amount. Tony bought four items that each cost the same amount, but each was $2.25 less then the items that Tanya bought. Both Tanya and Tony paid the same amount of money. What was the individual cost of each person's items?
Mathematics
2 answers:
artcher [175]3 years ago
6 0

the correct answer is $9.00

Alex73 [517]3 years ago
5 0

3x = 4x - 9

x = 9  x - 2.25 = 6.75

Therefore your answer is $9.

You might be interested in
PLEASE HELP! If you solve this I would be so grateful!
stealth61 [152]

Answer:

f(h)=2d+4.3

= 2 x 1.5+4.3

  h=7.3ft

4 0
2 years ago
Read 2 more answers
If a man is m years old, write an expression for how old he will be in 8 years.
mr_godi [17]

Answer:

M + 8 = age after 8 years.

Step-by-step explanation:

bruh

5 0
3 years ago
Read 2 more answers
The bearing of a plane from the airport is 65.
Ulleksa [173]

Answer:

The bearing of the airport from the plane is 245°

Step-by-step explanation:

The bearing of a point from a location is given by the angle in degrees of rotation from the Northern direction of the location to the direction of the location of the point

The given bearing of the plane from the airport = 65°

Therefore, the direction of the plane from the Northern direction of the airport = 65°

From the Northern direction of the plane, the bearing of the airport = 245°

5 0
3 years ago
According to these three facts, which statements are true?
Yanka [14]
Q1) We have the following statements:

<span>1. Circle W has center (−3, 0) and radius 8.

We can write this statement as the following equation:

</span>(x-h)^2+(y-k)^2=r^2 \therefore (h,k)=(-3,0) \ and \ r=8 \\ \\ \therefore (x+3)^2+y^2=64
<span>
The graph of this equation is shown in Figure 1.

</span><span>2. Circle V is a translation of circle W, 2 units down.

To do this translation we add two units to the y-coordinate, so:

</span>(x+3)^2+(y+2)^2=64
<span>
The graph is shown in Figure 2.

</span><span>3. Circle V is a dilation of circle W with a scale factor of 2.

To do this dilatation we multiply both the center and the radius by the scale factor of 2, thus:

</span>(x+3)^2+y^2=64 \\ (h,k)=(-3,0) \\ (h_v,k_v)=2\times (-3,0)=(-6,0) \ and \ r_v=8\times2=16 \\ \\ (x+6)^2+y^2=256
<span>
This circle is shown in Figure 3

So let's analyze each statement.

Q1.1) </span><span>The center of circle V is (−5, 0).

This is false. From the statement 2 we know that the new center is (-3, -2) and from 3 the new center is (-6, 0).

Q1.2) 
</span><span>Circle V and circle W are similar.

Since all circles have the same shape even though they may be different sizes, then all circles are similar. Therefore, it is true that circle V and circle W are similar.

Q1.3) 
</span><span>The radius of circle V is 16.

From the statement 3 we can affirm that this is true. By applying the dilatation </span><span>with a scale factor of 2 we find out that the radius of the new circle is in fact equal to 16.

Q1.4) </span>Circle V and circle W have the same center. 

From the statement 2 we know that the new center is (-3, -2) and from 3 the new center is (-6, 0). On the other hand, the center of circle W is (-3, 0). From this, it follows that this statement is false.

Q2) Suppose x is any positive number.

We have two concentric circles as follows:

x\ \textgreater \ 0 \\ \\ Circle \ 1: Center \ (0,0) \ and \ radius \ 2x \\ \\ Circle \ 2: Center \ (0, 0) \ and \ radius \ 10x<span>

Q2.1) Why is circle 1 similar to circle 2?
</span><span>
If we perform a dilatation, that is, a </span>resizing of one circle, centered on the shared center, until both circles overlap, it will be true that the circles will always overlap no matter what size they are, thus, they are similar. In fact, as we said in above all circles are similar. 

Q2.2) 
<span>Circle 2 is a dilation of circle 1 with a scale factor of 0.2.

Suppose that:

</span>x=2
<span>
Then circle 1 is given by the following equation:

</span>x^2+y^2=4
<span>
If we dilate this circle </span><span>with a scale factor of 0.2 then:

</span>Circle \ 1: x^2+y^2=4 \\ Diameter \ 1=2r=2\times 2=4 \\ \\ (h,k)=(0,0) \\ (h_v,k_v)=0.2\times (0,0)=(0,0) \ and \ r_v=0.2\times 2=0.4 \\ \\ Circle \ 2:x^2+y^2=0.16 \\ Diameter \ 2=2\times 0.4=0.8 \\ \\ So: \\ \\ Diameter \ 1 \neq Diameter \2
<span>
So the statement b</span>oth circles have congruent diameters is false.

<span>Q2.3) Circle 2 is a dilation of circle 1 with a scale factor of 5.

We have the same equation for circle 1:

</span>x^2+y^2=4

Circle \ 1: x^2+y^2=4 \\ \\ Dilatation: \\ (h,k)=(0,0) \\ (h_v,k_v)=5\times (0,0)=(0,0) \ and \ r_v=5\times 2=10 \\ \\ Circle \ 2:x^2+y^2=100

Two circles have the same area if they have the same radius. Given that this is no applied to our circles, the statement circle 1 and circle 2 have equal areas is false.

8 0
3 years ago
Maya will deposit $1,650 in an account that earns 5% simple interest every year. Her brother, James, will deposit $1,600 in an a
antiseptic1488 [7]

Answer:

each year james gets 3% more interest than maya. over 4 years james gets 34% interest and maya gets 20%. over 4 years james gets 16% more than maya.

7 0
2 years ago
Other questions:
  • LMNO is a parallelogram. If NM = x + 33 and OL = 4x + 9, find the value of x and then find NM and OL.
    14·1 answer
  • Raj is 3 inches taller than Howard. Let h represent Howard’s height. Write an algebraic expression to represent Raj’s height
    9·2 answers
  • A __________ contains all the subset of superset. A superset. B proper subset. C null set 2.Positive square root of 1/3 is______
    8·1 answer
  • What is the frequency of the function y = 3sin2x
    13·1 answer
  • Which graph represents the equation -5x+4y&gt;-1?
    9·1 answer
  • HELP!!! Brainly for the correct answer.
    5·1 answer
  • Evaluate f(x) when x = 3.
    7·1 answer
  • Please help due in 3 minutes ​
    10·2 answers
  • 1. Which expression is equivalent to 4(x + 1) – 7(x + 3)?
    9·2 answers
  • SHOW WORK NEED ASAP
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!