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
Kayla saves $110 to purchase a new outfit. She decides to but a skirt for $29.65, a sweater for $38.32, and a purse for $31.00
Blizzard [7]

Answer:

$98.97

Step-by-step explanation:

3 0
3 years ago
The larger of two numbers is four more than the smaller number.If the sum of the numbers is 61,find the numbers
sergij07 [2.7K]

Answer:

<u>28.5 and 32.5</u>

Step-by-step explanation:

<em>create an equation to solve:</em>

x + (x+4) =61

2x + 4 = 61 combine like terms

2x = 57 subtract 4 from both sides

x = 28.5 divide 2 from both sides

28.5 is the smaller number

the larger number is 4 more so:

28.5 + 4 = 32.5

32.5 is the larger number

check your work:

28.5 + 32.5 = 61

6 0
3 years ago
What is the approximate volume of a cylinder with a diameter of 14 meters and a height of 10 meters? Use 3.14 for pi.
WITCHER [35]
V = πr2<span>h

V = 3.14 x 7 x 7 x 10</span><span>

V = </span>1538.6 cubic meters.

Hope i become the brainliest.
5 0
3 years ago
What is the following quotient? 2- 8sqr / 4+12 sqr
AlekseyPX

Answer: 130

Step-by-step explanation:

--> first solve sqr-->2-64/4+144

-->perform division next as per DMAS rule-->64÷4=16--> 2-16+144

--> now perform addition and subtraction-->2-16-14--> -14+144= 130

7 0
3 years ago
Kim purchased white vases, red vases, and flowers to create centerpieces for an event. The flowers cost a total of $336 and each
laiz [17]

Option A:

I and III only the answers.

Solution:

Let white vases be "w" and red vases be "r".

Cost of total flower = $336

Cost of each vase = $11

Total cost of the centerpieces

                = Cost of (white vases + red vases)  + Cost of flowers

                = 11(w + r) + 336

                = 11w + 11r + 336

Total cost of the centerpieces = 11w + 11r + 336 = 11(w + r) + 336

Therefore I and III only the answers.

Option A is the correct answer.

4 0
3 years ago
Other questions:
  • what is the solution to the system of equations? y = –3x 6 y = 9 a.(–21, 9) b.(9, –21) c.(–1, 9) d.(9, –1)
    7·1 answer
  • -8b-32 what is the answer with work?
    8·1 answer
  • What is the equation of the line 2-3y = 18 in slope-intercept form?
    15·1 answer
  • Create a Pattern with the rule n-4
    13·1 answer
  • How many solutions does the equation 5x + 3x − 4 = 10 have
    10·2 answers
  • ASAP! I NEED THIS DONE AS QUICKLY AS POSSIBLE WITH WORKING OUT
    10·1 answer
  • What is the slope of the line with the equation of y = −2/3 x that passes through the point (2, 1)?
    15·1 answer
  • Is -4x-1 over 4=1 inverse
    6·1 answer
  • Find the slope from the pair of points.<br> (0, -5) (-3,5)
    12·1 answer
  • Please do all of the parts,, im begging
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!