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Illusion [34]
3 years ago
8

Lindsey needs a jeweler to repair her earrings. Jeweler A is offering her services for an initial $130 in

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
5 0
Set the 2 price equations equal to eachother and solve.
130+15x= 142+ 11x
They will be equal after 3 hours
You might be interested in
3. A cone has a heighth and a base with radius r. You want to change the cone so its volume is tripled. What is the new height i
Sphinxa [80]

Answer:

Hence the new height  is 3 times the original height .(h1=3h)

Step-by-step explanation:

Given:

A cone with  has height and base with radius r .

To Find:

What is new height

Solution:

Consider as cone with height h base radius r, and volume v

Here given that only height changes for the cone  i.e. r remains the unchanged or same or constant

The volume for a regular cone is given by ,

V=pie*r^2*h/3

Here V is directly proportional to h i.ee pie ,3 and r being constant

V=K*h

i.e V/h=constant

V1 and h1 are new dimensions for new cone

V/h=V1/h1

Here V1=3V

So V/h=3V/h1

1/h=3/h1

i.e  h1=3h

Hence the height  is 3 times the original height .

4 0
3 years ago
7/8 – m = 2/3<br><br> What is the value of m?<br><br> correct=brainliest
AnnyKZ [126]

Answer: the answer is 5/24

Step-by-step explanation:

If you do 7/8 - 2/3 you get 5/24 and to check your work, do 7/8 - 5/24 and you get 2/3

Hope this helps ^^

6 0
2 years ago
Read 2 more answers
What is the product of -2x^3 + x -5 and x^3 – 3x?
lana66690 [7]
(-2x^3 +x -5) * (x^3 -3x)
= x^6*(-2*1) +x^4*(-2*-3 +1*1) +x^3*(-5) +x^2*(-3) +x(-5*-3)
= -2x^6 +7x^4 -5x^3 -3x^2 +15x
8 0
3 years ago
I need help with C please.
zlopas [31]

9514 1404 393

Answer:

  ║w║ = 6

Step-by-step explanation:

(c) The magnitude of w is computed the same way the magnitudes of the other vectors are computed. It is the root of the sum of the squares of the components.

  ║w║= ║<-6, 0>║ = √((-6)² +0²) = √36

  ║w║= 6

4 0
3 years ago
What is the exact value of x in the exponential equation 2^5x − 57 = 43?
katovenus [111]
Start by getting the term with the exponent on one side
2^{5x}=100

take the log of both sides
log 2^{5x} =log100

There is a log rule that says we can bring down the exponent
5xlog2=log100

Solve for x
5x= \frac{log100}{log2}
5x=6.64

answer: x=1.33
4 0
3 years ago
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