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
creativ13 [48]
3 years ago
8

21 is 70 percent of what number

Mathematics
2 answers:
ratelena [41]3 years ago
7 0

Answer is provided in the image attached.

Arturiano [62]3 years ago
3 0
30 
You need to make it a porportion 21 over nothing and 70 over 100
then do 21 x  100= 2100 and then you need to divide 2100 by 70
Thats how u get 30
You might be interested in
PLEASE HELP!!!
pogonyaev

Step-by-step explanation:

Part A:

Let m be the number of mittens and s be the number of scarves. Then we have the inequalities:

s+m\leq 30. <em>This says Nivyana and Ana cannot make more than 30 scarves</em>

50s+25m\geq 1000. <em>This says that</em> <em>Nivyana and Ana have to earn at least $1000.</em>

Part B:

The graph is attached.

Notice that the graphs of the inequalities are solid lines, this just means that the points on these lines included to the solutions of each inequality.

The darker shaded region and the solid lines bounding it, are the solutions to the inequalities because that's where the values common to both inequalities are found.

Part C:

From the graph we get two possible solutions:

15 scarves & 10 mittens

25 scarves & 5 mittens.

These two points lie on the solid lines that bound the darker shaded region<em> (I picked those points to stress that the lines bounding the dark region are also solutions.)</em>

8 0
2 years ago
a straight line has a equation 4x + 3y = 12 . find the gradient of the line and the coordinates of the point where this line cro
Komok [63]
4x + 3y = 12
3y = -4x + 12
y = -4/3x + 4........so the slope (or gradient) is -4/3...because in y = mx + b form, the slope(gradient) is in the m position and the y int is in the b position....so if u wanted to know the y axis, it would be (0,4)

the x intercept (where the line crosses the x axis) can be found by subbing in 0 for y in the original equation or the slope intercept equation, and solving for x.
4x + 3(0) = 12
4x = 12
x = 12/4 = 3....so the x intercept is (3,0)
4 0
3 years ago
Find the error sienna used base-ten blocks to find 45÷3 .explain her error
Harrizon [31]
The answer to your question is 15

5 0
3 years ago
Cups of white paint
sergejj [24]

Step-by-step explanation:

hi you smell bad lol I'm just kidding so wipe that look off your face dont take offence km just playing with you I have a crush on you I'm just kidding lol dont be so serious

6 0
3 years ago
What is the factored form of 8x2 + 12x? 4(4x2 + 8x) 4x(2x + 3) 8x(x + 4) 8x(x2 + 4)
earnstyle [38]
So I'm guessing that the x2 is your way of saying 2 is the exponent right? In that case the equation would be 8x^2 + 12x
Well you would have to pull out the gcf which in this case will be 4x after pulling out the gcf you should get 4x(2x + 3)
8 0
3 years ago
Read 2 more answers
Other questions:
  • 4 friends are eating personal pan pizzas. Jane has 3/4, Jill had 3/4, Cindy has 2/3 left and Jeff has 2/5 left. Who has the most
    8·1 answer
  • Simplify -10(10w-6-w)-w
    15·1 answer
  • 6. Marina makes tablecloths. Each
    8·2 answers
  • 12 × 6 = 72
    8·2 answers
  • Solution set is(answer)................
    10·1 answer
  • (2x3)^2=5^2 <br><br> Need help on this please
    11·1 answer
  • Which ordered pair is a solution of the equation y=7x-3
    15·1 answer
  • Proprietors' Income $20
    8·1 answer
  • Imani spent half of her weekly allowance playing mini-golf. To earn more money her parents let her wash the car for $4. What is
    13·1 answer
  • Beth drops a bouncy ball, which bounces back up again. The graph 'below shows the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!