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
Harrizon [31]
3 years ago
15

Dentify the percent, amount, and base in this problem. 75% of what number is 30?

Mathematics
2 answers:
anastassius [24]3 years ago
7 0

Answer:

40

Step-by-step explanation:

This is essentially just (4/3), or \frac{3}{4}^{-1}. (4/3)*30 = 40, so our answer must be 40. Just to check, taking 75 percent of 40, we indeed get 30!

kkurt [141]3 years ago
5 0

For this case we must find a number of which 30 represents 75%. For this, we make a rule of three:

x ------------> 100%

30 ----------> 75%

Where the variable "x" determines the base number of which 30 is 75%

x = \frac {100 * 30} {75}\\\\

x=40

Thus, 30 represents 75% of 40.

Answer:

40

You might be interested in
What is the simplified expression for <br><br> - 3(2x - 5)
rusak2 [61]

Answer:

-6x + 15

Step-by-step explanation:

This should be your answer if you are doing distributive property.

Please mark as brainliest! <3

6 0
3 years ago
Determine the equation of the circle with radius 99 and center (-1,-8)(−1,−8).
kumpel [21]
<h2>Equations of Circles</h2>

Generally, you'd see the equation of a circle organized in the following format:

(x-h)^2+(y-k)^2=r^2

  • (h,k) is the center
  • r is the radius

To determine the equation given the center and the radius:

  1. Plug both pieces of information into the general equation
  2. Simplify

<h2>Solving the Question</h2>

We're given:

  • Radius: 99
  • Center: (-1,-8)

Plug the radius and center into the equation as r and (h,k):

(x-(-1))^2+(y-(-8))^2=99^2\\(x+1)^2+(y+8)^2=9801

<h2>Answer</h2>

(x+1)^2+(y+8)^2=9801

7 0
2 years ago
NEED ANSWERED ASAP!!!!!!!
Igoryamba

Answer:

5.25 is the lenght of the arc AB.

Step-by-step explanation:

First, since we are told the answer should be expressed in radians, we need to convert the arc angle into radians, we do that by multiplying the angle by π and dividing by 180.

60° * π/180 = 1.05rad

Now, there is a simple formula to calculate the arc lenght, A = Ф*r, where:

A = arc lenght

Ф = arc angle (60°=1.05rad)

r = radius (5cm)

A = 1.05*5cm

A = 5.25cm

5 0
3 years ago
Determine whether the set of vectors is orthonormal. If the set is only​ orthogonal, normalize the vectors to produce an orthono
In-s [12.5K]

Answer:

(i) See attached image file

(ii) Option A

Step-by-step explanation:

See attached image file

6 0
3 years ago
Graph Y = -1/2x-6<br> Please help me out! I will mark answer brainiest if you do...
elena55 [62]
Y = -1/2x - 6......u have a slope of -1/2....u have a y int of -6 or (0,-6)

the x int can be found by subbing in 0 for y and solving for x
0 = -1/2x - 6
1/2x = -6
x = -6 * 2
x = -12.....so ur x int is -12 or (-12,0)

so go ahead and plot ur intercepts.....(0,-6) and (-12,0)...well...u cant really plot ur x axis because ur graph is not big enough....so start at (0,-6)...and I know the slope is -1/2....and u would usually start at (-12,0)...but that is not on the graph....so start at (0.-6)....and go up 1 and to the left 2, plot that point....then up 1 and to the left 2...plot that point......u would eventually cross the x axis at (-12,0).

or u could just go to desmos....its a graphing calculator...and see for urself
4 0
3 years ago
Other questions:
  • Which of the polygons listed below have at least four sides? Triangles Quadrilaterals Pentagons Hexagons Heptagons
    9·1 answer
  • According to the Ruler Postulate, what does the set of points on any line correspond to?
    11·1 answer
  • What is the length of side BC? Round your answer to the nearest tenth.
    5·1 answer
  • Twice the difference of 9 and a number
    6·1 answer
  • Given the equation 4x + 7 = 3(2x − 5), solve for the variable. Explain each step and justify your process.
    10·1 answer
  • Can someone help with 31?!!!
    15·1 answer
  • Help i dont understand this..
    13·2 answers
  • Tropical islands have many rainstorms during the afternoon heat. One particular tropical island has a 79% chance of a
    10·1 answer
  • Pretend you got 86% of the questions on a state test correct. The test had 120 problems. How many problems did you get correct?
    9·1 answer
  • Triangle PQR with side p across from angle P, side q across from angle Q, and side r across from angle R
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!