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
SpyIntel [72]
3 years ago
11

Solve for x. x-0.3x=28

Mathematics
1 answer:
Svetlanka [38]3 years ago
5 0

Answer: x=40

Step-by-step explanation x-0.3x=28

Add similar elements x-0.3x=0.7x

0.7x=28

Multiply both sides by 10

0.7x · 10= 28  · 10

Refine

7x=280

Divide both sides by 7

Simplify

x = 40

You might be interested in
How many cubic centimeters of water can this paper cone cup hold?
Igoryamba

Answer:

150.72 cubic centimeter

Step-by-step explanation:

Given:-

Height of cone (h) = 9cm

Diameter of cone(d)=8cm

radius of cone(r)=\frac{d}{2}=\frac{8}{2} =4cm

To calculate= Volume of cone(V_{cone})

Volume\ of\ cone(V_{cone}) =\frac{1}{3} \times \pi \times r^{2} \times h

=\frac{1}{3} \times 3.14\times 4^{2} \times 9

Volume of cone(V_{cone}) =150.72\ cubic\ centimeter

Therefore paper cone cup can hold 150.72 cubic centimeter of water.

5 0
3 years ago
Help someon in need of making a 100 to pick my grade up plzz
Marat540 [252]

Answer:

Step-by-step explanation: 10x10=100

D and b

3 0
3 years ago
WILL GIVE BRAINLIEST
brilliants [131]

Answer:

^algebra^

#1). a - b=4

a=4 + b .....(equation 1)

#2) a + b=12

(4 + b) + b= 12

4 + b + b=12

4 + 2b=12

2b= 12 - 4

2b =8

b= 8:2

b=4

subtituted b in equation 1

a= 4 + b

a= 4 + 4

a=8

so, the number is 8 and 4

7 0
3 years ago
5.5 = -2 + d
TEA [102]
The value of <em>d</em> is 7.5.

The key to solving equations is doing the inverse, or opposite, function/process.
For example, you subtract when d + 1 = 2:
d + 1 = 2
(d + 1) -1 = (2) - 1
d = 1

In the same way, you add values when you have a negative:
5.5 = -2 + d = d - 2
5.5 = d - 2
(5.5) + 2 = (d - 2) + 2
7.5 = d

Now if instead of adding 2, you subtract 2, the problem becomes:
5.5 = d - 2
(5.5) - 2 = (d - 2) - 2
3.5 = d - 4

This doesn't solve your problem, it just makes the value needed to be canceled out larger.

Thus d = 7.5 and you will add because the value is negative.
7 0
3 years ago
Read 2 more answers
A crew is made up of 8 men; the rest are women. If 32 % of the crew are men, how many people are in the crew?
Lelechka [254]

Answer:

12

Step-by-step explanation:

(66 2/3)

---------- (x) = 8

  100

Solve for x

(66 2/3)x = 800

x = 800/(66 2/3)

x = 800/(200/3)

x = 800(3/200)

x = 4(3)

x = 12

8 0
3 years ago
Other questions:
  • Answer and explanation.
    9·1 answer
  • 25 POINTS PLEASE HELP SOMEONE WHO CAN
    14·2 answers
  • On the first 4 quizzes of her chemistry class, nadia got an average score of 88. what does she need on the next quiz to have an
    11·1 answer
  • Please help!
    11·1 answer
  • I have 2 questions
    6·1 answer
  • What’s is 2 1/2 divided 1/3
    14·1 answer
  • a store sells new DVDs for $12 each. used DVDs sell for $7 each. Joseph is buying two new DVDs and X used DVDs. write an equatio
    8·2 answers
  • Write five important features. of democratic government​
    12·1 answer
  • Me wit filtersssssssssssssss
    12·2 answers
  • I have to write this on graph paper please help this is due tomorrow
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!