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
hjlf
3 years ago
13

What is 70% of blank = 28

Mathematics
2 answers:
QveST [7]3 years ago
5 0
Percent means parts out of 100
70%=70/100=7/10
7/10 of x=28
'of' means multiply
7/10 x=28
multiply both sides by 10/7 to get rid of fraciton
x=40


the number is 40
irakobra [83]3 years ago
3 0
Divide 28 by .7 and you have your answer...40.. simple algebra just get x(blank) by itself
You might be interested in
What is the volume of a sphere with a surface area of ​ 16π ​ft²?
zheka24 [161]
Sphere Surface Area     =    <span> 4 • <span>π <span>• r²
For it to equal 16 PI, then radius must equal 2
4*PI*2*2 = 16 PI

</span></span></span>
Sphere Volume   = <span>  4/3 • <span>π <span>• r³
</span></span></span>
Sphere Volume   = <span>  4/3 • <span>π <span>• 2^3
</span></span></span>
Sphere Volume   = <span> 4/3 *PI * 8
</span>
Sphere Volume   = <span> 32 / 3 PI

</span>
Sphere Volume   = <span> 10.666 PI cubic feet AND I think that is answer B
which SHOULD read 10 (2/3) PI ft^3
</span>
4 0
3 years ago
Read 2 more answers
What is the next to numbers In the pattern 4.15,6.3,8.45
olganol [36]

Answer:

9.54

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
26 cm/s= m/min i really need help
Bess [88]
26 cm/s = 15.6 m.min :))
i hope this be helpful 
have a nice day 
4 0
3 years ago
Read 2 more answers
Solve the right triangle. Round decimal answers to the nearest tenth.
AnnZ [28]

Answer:

See solution below

Step-by-step explanation:

According to pythagoras theorem

hyp^2 = opp^2 + adj^2

10^2 = 4^2 + b^2

100 = 16 + b^2

b^2 = 100-16

b^2 = 84

b = √84

b ≈ 9

Using SOH CHA TOA identity

sin B = AC/AB

Sin B = 9/10

B = arcsin0.9

B ≈ 64degrees

sinA = BC/AB

Sin A = 4/10

A = arcsin0.4

A ≈ 24degrees

5 0
2 years ago
I'm in algebra please help and explain with work
lidiya [134]
2x+4y=0
3x+y=10
So what we want to do is get y onto one side by itself using whatever equation you like.
So I'm taking 2x+4y=0 and subtracting 4y from both sides
So we end up with
2x=4y
Divide both sides by four
2/4x is 1/2 x
So we get 1/2x=y
Take this and plug it into the other equation
3x+y=10
3x+1/2x=10
Add your like terms
3 1/2x=10
Putting 3 1/2 as a mixed number we get 7/2
So..
7/2x=10
Multiply by the opposite of 7/2 on both sides
Which is 2/7 this will cancel out the left side.
So we end up with
X= 10•2/7
X=20/7
Which is 2 and 6/7 as a mixed number.

5 0
3 years ago
Other questions:
  • Janey bought a used bicycle for $640. the bike was 3 years old when she bought it, and cost $850 new. assuming it decreases in v
    15·1 answer
  • HELP!!!
    5·2 answers
  • if 300 jellybeans cost you x dollars. how many jellybeans can you purchase for 50 cents at the same rate?
    14·1 answer
  • you buy butter 4.13 a pound one portion of onion requires 1.7 oz of butter how much dose the butter for one portion cost
    11·1 answer
  • Which of the following mixed numbers is equivalent to 12.1 6 ?
    14·2 answers
  • Emily is going to the movies this weekend with some friends. they have a total of $54 to spend. Emily wants a large popcorn that
    7·2 answers
  • What is the smallest positive composite number that does not have any prime factors less than 20?
    5·1 answer
  • One year, the closest the moon got to Earth was 372,835 kilometers.
    9·2 answers
  • Toby thinks of a number less than 15. He divides it by 2 and then he adds 4. He then divides it by 3. His awnser is 3. 5
    12·1 answer
  • Really need help please please help
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!