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
shusha [124]
3 years ago
15

When is 9+10 really equal to 21

Mathematics
2 answers:
schepotkina [342]3 years ago
4 0

Answer:

9 + 10 = 21

Step-by-step explanation:

9 + 10 = 21

Factor out 9 and 10

9 = 3 · 3   10 = 2 · 5

Next multiply 3 by 2

3 × 2 = 6

Then multiply 3 by 5

3 · 5 = 15

Finally add the products

15 + 6 = 21

Aleksandr [31]3 years ago
4 0
It can never be equal to 21 because that’s not how math works
You might be interested in
What is the sum of the first 7 terms of the series −4+8−16+32−... ?
blondinia [14]

The terms appear to increase by a multiple of -2. The first 7 terms are:

-4 + 8 + -16 + 32 + -64 + 128 + -256. Add these together.

The sum of these numbers is -172.

4 0
3 years ago
I Don’t get this, someone help!!
Nesterboy [21]

Answer:

length times width is your forumla 40ft is your width. so 30ft x 40ft=1,200 ft

Step-by-step explanation:

mark me brainiest

pls and ty

have a nice day!

QUEENOFTARUS ♉

7 0
2 years ago
Read 2 more answers
Tia is buying cups and plates
Murljashka [212]
If u can plz give more information I am more than glad to help out
6 0
4 years ago
8 kg of mixed nuts containing 26% peanuts were mixed with 5 kg of another kind of mixed nuts that contain 52% peanuts. peanuts a
Gnesinka [82]

Answer:

<em>36%</em>

Step-by-step explanation:

"8 kg of mixed nuts containing 26% peanuts"

weight of peanuts: 26% * 8 kg = 0.26 * 8 kg = 2.08 kg

"5 kg ... that contain 52% peanuts"

weight of peanuts: 52% * 5 kg = 0.52 * 5 kg = 2.6 kg

Total weight of peanuts: 2.08 kg + 2.6 kg = 4.68 kg

Total weight of mixed nuts: 8 kg + 5 kg

percent of peanuts: (4.68 kg)/(13 kg) * 100% = 36%

6 0
3 years ago
This is to help my cousin ​
sasho [114]

Answer:

What is the question?

Step-by-step explanation:

8 0
4 years ago
Other questions:
  • Rewrite using the distributive property -9(y+5)
    14·2 answers
  • Please help me this is due tomorrow and please follow me and I am in the 5th grade
    5·1 answer
  • Since 1970, the # (in thousands) of males M and females F attending institutes of higher education can be modeled by: M=0.091t^3
    10·1 answer
  • Determine the coordinates of the point on the unit circle corresponding to the given central angle.
    9·1 answer
  • Evaluate 5 + (-4) +(-7) + 2.
    6·2 answers
  • The triangle is shown below<br> what is the value of x
    11·1 answer
  • To classify
    6·1 answer
  • Find the value of x from the picture shown
    8·1 answer
  • What is the slope of the line that passes through the points (-7, -4)(−7,−4) and (-11, -2) ?(−11,−2)? Write your answer in simpl
    7·1 answer
  • 5. Compound Interest - Single Payment: $5000 was invested at 5.2%, compounded semi-annually, for 3 years. What was the investmen
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!