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
pickupchik [31]
2 years ago
7

The original price of a skateboard was $25. New owners of the store raised the price to

Mathematics
1 answer:
Paha777 [63]2 years ago
4 0
Answer:
D. 20%
Explain:
30-25=5
5/25= 20%
You might be interested in
What is 10.465 - (-25.21)
UNO [17]

Answer: 35.675

Step-by-step explanation:

10.465−(−25.21)

The opposite of −25.21 is 25.21.

10.465+25.21

Add 10.465 and 25.21 to get 35.675.

35.675

5 0
2 years ago
Need help with image below
Ann [662]

Step-by-step explanation:

please provide formula

7 0
3 years ago
Find the area of the figure <br><br> A =
Levart [38]
Answer:

207 m

Step-by-step explanation:

17 x 6 = 102

15 + 6 = 21

5 x 21 = 105

105 + 102 = 207 m^2
6 0
3 years ago
Read 2 more answers
) find a vector parallel to the line of intersection of the planes 5x − y − 6z = 0 and x + y + z = 1.
snow_tiger [21]
The cross product of the normal vectors of two planes result in a vector parallel to the line of intersection of the two planes.

Corresponding normal vectors of the planes are
<5,-1,-6> and <1,1,1>

We calculate the cross product as a determinant of (i,j,k) and the normal products

    i   j   k
   5 -1 -6
   1  1  1

=(-1*1-(-6)*1)i -(5*1-(-6)1)j+(5*1-(-1*1))k
=5i-11j+6k
=<5,-11,6>

Check orthogonality with normal vectors using scalar products
(should equal zero if orthogonal)
<5,-11,6>.<5,-1,-6>=25+11-36=0
<5,-11,6>.<1,1,1>=5-11+6=0

Therefore <5,-11,6> is a vector parallel to the line of intersection of the two given planes.
5 0
3 years ago
Which expressions are equivalent to − 56 z + 28 −56z+28minus, 56, z, plus, 28? Choose 2 answers: Choose 2 answers: (Choice A) A
Dmitrij [34]

Answer:

(D)-2(28z-14) \: and\:\\(E) -7(8z-4)

Step-by-step explanation:

We are to determine which of these expressions are equivalent to: -56 z + 28

(A)\frac{1}{2}\cdot(-28z+14) \\(B)(-1.4z+0.7)40\\(C)(14-7z)\cdot(-4)\\(D)(8z-4)(-7)\\(E)-2(-28z-14)

-56 z + 28

  • If we factor out -2

-56 z + 28=-2(\frac{ -56 z}{-2} + \frac{28}{-2})=-2(28z-14)

  • If we factor out -7

-56 z + 28=-7(\frac{ -56 z}{-7} + \frac{28}{-7})=-7(8z-4)

Therefore, the two equivalent expressions are:

-2(28z-14) \: and\: -7(8z-4)

5 0
3 years ago
Other questions:
  • -1/5x=6 can some one help me
    12·2 answers
  • #1 $11.49 for 3 packages and fid the unit rate.round to the nearest hundredth if necessary
    11·2 answers
  • Can someone pls help me with this thanks
    8·1 answer
  • 6 + ( 2 − 3 ( 4 ) ) + 1 /( 5 ) ( 2 ) − 4
    13·1 answer
  • Pythagoras theorem line on a graph
    6·1 answer
  • Divide. −10 ÷ −2
    5·2 answers
  • 1. Whats the answer to <br> The function f(2) = 2x+5.
    15·1 answer
  • Solve for x. Round to the nearesr tenth of a degree if necessary.
    8·1 answer
  • Which are the solutions of x2 = –7x – 8?
    14·2 answers
  • What is the image of (8,-5) after a reflection over the line y=−x?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!