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
Paladinen [302]
3 years ago
14

Here is a rectangle labelled abcd the length of the rectangle is increased by10% and width 5% how much percent has the perimeter

increases by

Mathematics
1 answer:
xeze [42]3 years ago
6 0

Answer:

8%

Step-by-step explanation:

new length = 110% x 30 = 33cm

new width = 105% x 20 = 21cm

new perimeter = 2(33 + 21) = 108cm

old perimeter = 2(30 + 20) = 100cm

percentage increase = 8/100 x 100% = 8%

Topic: Percentage

If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!

You might be interested in
PLZ HELP 10 POINTS!!!!!!!!!!!
tensa zangetsu [6.8K]

Answer: The answer is D) <em>126in3</em>

Step-by-step explanation:

When you multiply 42 and 9 you get 378, so from there you divide your answer by 3 which gets you

<em>126in</em>

5 0
3 years ago
find the equation of a line that is parallel to the straight line 2x-y=-3 and crosses the x-axis at x=-5​
Alecsey [184]

Answer:

y=2x+10

Step-by-step explanation:

In line equations its helpful to write your line in the form y = ax + b. This helps because a is always the gadient of the line and b is always the y intercept.

In this case it is y=2x+3

All parallel lines have the same gradient. The gradient of this line = 2.

If the line crosses the x axis at x=-5, then when x =-5 y = 0.

If you put all this in the form y =ax + b you get 0 = 2(-5) +b

So all you need to do to find b is rearrange. b = 10.

Therefore your line has gradient 2 and y intercept 10.

y = 2x + 10

7 0
3 years ago
I need help 15 points scientific notation
Radda [10]

for number 19, figure out the exponents then multiply.

for scientific notaintion you figure out how many numbers are behind the decimal , then do that number as an exponient to 10 then multiply by that number. i hope i made a bit of sense. if not look at kahn academy for help !


8 0
4 years ago
The mean of 7 numbers is 15. When an 8th number is added the mean decreases to 12. What is the 8th number?
ale4655 [162]

Answer:

The 8th number is -9

Step-by-step explanation:

With an average, the sum of the seven numbers divided by 7 is 15.

In order to add an 8th number, we set up

\frac{7*15+x}{8}=12\\105 + x = 96\\x = -9\\\\\frac{105-9}{8}=\frac{96}{8}=12

3 0
4 years ago
The point-slope equation of a line is....? HELP ME
Kay [80]
Y-y1=m(x-x1) she kdhkshs jshdkhd
8 0
3 years ago
Other questions:
  • Plz help ill give you brainlist
    9·2 answers
  • Jose ran13 mile in 3 minutes and 15 seconds. Calculate Jose's rate in minutes per mile; in other words, the time that it would t
    6·2 answers
  • Which table shows the equation y=1/2x-7
    12·1 answer
  • How do you find an experimental probability of a simple event
    12·1 answer
  • 5 objects in a bathroom that contain fluid ounces
    7·1 answer
  • Dorothy and Rosanne are baking cookies for a party. Working alone, Rosanne can finish the cookies in 6 hours. Dorothy can finish
    15·1 answer
  • Which figure shows a radius?
    15·2 answers
  • The intersection of two planes is a what
    8·1 answer
  • Write a two-step equation that involves multiplication and subtraction, includes a negative coefficient , and has a solution of
    7·1 answer
  • Hey, I'm in honors math, and I need help with this question. Please help as much as you can PLEASE!!!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!