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
gulaghasi [49]
3 years ago
8

30-10x and 10(3-x) equivalent or not?

Mathematics
1 answer:
BARSIC [14]3 years ago
3 0

Answer:

no

Step-by-step explanation: You can use variables to find that out. PEMDAS works too (parenthesis, exponents, multiplication, division, addition, subtraction). Put a random number for x and then you can see that it is not equivalent. Example: 30 - 10x7 = 40 but 10 (30-70) = -400

You might be interested in
Helen has 48 cubic inches of clay to make a solid square right pyramid with a base edge measuring 6 inches. Which is the slant h
Nikitich [7]

Answer: 5 inches


Step-by-step explanation:

Given: Volume of clay = 48 cubic inches

If we make a solid square right pyramid with a base edge a= 6 inches.

Then its base area = a^2=6^2=36\ inches^2

we know that volume of square right pyramid=\frac{1}{3}\times\ a^2h

Therefore, volume of square right pyramid made by all of clay=\frac{1}{3}\times\ a^2h=48 cubic inches

\Rightarrow\frac{1}{3}\times\ (36)\times\ h=48\\\Rightarrow12h=48\\\Rightarrow\ h=4\ inches.....\text{[Divide 12 on both sides]}

Now, slant height l=\sqrt{(\frac{a}{2})^2+h^2}

\\\Rightarrow\ l=\sqrt{3^2+4^2}\\\Rightarrow\ l=\sqrt{9+16}\\\rightarrow\ l=\sqrt{25}\\\Rightarrow\ l=5

The slant height of the pyramid if Helen uses all the clay=5 inches

5 0
2 years ago
Read 2 more answers
What is the area of the figure ?
nlexa [21]

Answer:

70 cm^2

Step-by-step explanation:

The area of square is 5×10=50 plus the square of triangle, high of triangle is 18-10=8 and base of triangle is 5 because it common base with square, so the square of triangle is 1/2(8)(5)=20

The total area is 50+20=70 cm^2

6 0
2 years ago
Read 2 more answers
Find the proper answer
Temka [501]
I think the answer is C
8 0
2 years ago
Please help!! this is the question right here
Sidana [21]
John is correct because between the time and distance, you divide by 9 to get the distance or multiply by 9 to get the time.
6 0
2 years ago
Lucy spent $165 in December using a new credit card. In January, she began paying between $15 and $25 each month towards her acc
uysha [10]

The answer is letter C. $ 43.25

7 0
3 years ago
Other questions:
  • You have to use the numbers 1,2,3,4 and 5. Add those numbers and the sum should be equal to 50. You can combine the numbers to f
    7·2 answers
  • Slope of line y = -2x+ 4
    7·1 answer
  • John is selling tickets to an event. Attendees can either buy a general admission ticket, x, or a VIP ticket, y. The general adm
    9·1 answer
  • You are thirsty,so a friend has offered to give you 50% of his water. What information must you have in order to find out how mu
    15·2 answers
  • 1. (8-2)+18×6= 2. (15+29-4)×4= 3. (13+5)×(13-5)= show steps please
    7·1 answer
  • There are 25 desks in a classroom. Each desktop is the same as the one shown below. What is the total area of all of the desktop
    9·1 answer
  • Use substitution to solve the system of equations. How many solutions are there?
    6·2 answers
  • 3. What is the equation of the line that
    15·1 answer
  • What is the domain and range of f(x)=3x-1?
    7·1 answer
  • Plsss help me with this question!!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!