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Lana71 [14]
3 years ago
13

Whats 20 x 1??????????

Mathematics
2 answers:
svetlana [45]3 years ago
7 0

Answer:

Its 20 anything times one is the same number like 1 x 1 its still 1, 3 x 1 is 3, etc.


skelet666 [1.2K]3 years ago
5 0

any number times 1 is itself. 20 x 1 = 20.

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An easier question all wrong or unhelpful or no-work answers will be reported.
ipn [44]
Elimination: 

3x - 9y = 3
6x - 3y = -24

3x - 9y = 3
18x - 9y = -72
(subtract)
-15x = 75
÷ -15
x = -5

(3 × -5) - 9y = 3
-15 - 9y = 3
+ 15
-9y = 18
÷ -9
y = -2

Substitution:

6x - 3y = -24
+ 3y
6x = -24 + 3y

÷ 6
x = 4 + 0.5y

3(4 + 0.5y) - 9y = 3
12 + 1.5y - 9y = 3
12 - 7.5y = 3
- 12
-7.5y = -9
÷ -7.5
y = 1.2

x = 4 + (0.5 × 1.2)
x = 4 + 0.6
x = 4.6

So this one didn't fail as much, but I got different numbers. If you have to give in values, I'd give in the values from the elimination because I don't trust myself when it comes to the substitution
4 0
3 years ago
There are 1200 students at a school and 390 of them are boys if each classroom holds 30 students how many classrooms are needed
vodomira [7]

Answer:

40 classrooms

Step-by-step explanation:

Divide 1200 by 30.

1200÷30=40

If 390 students are boys just subtract 390 from 1200.

1200-390= 810

There must be 810 girls if there are 390 boys

5 0
2 years ago
Find all possible solutions for the following equation<br> x²+7x+63=63
Ugo [173]

Answer:

Step-by-step explanation:

X^2+7x+63=63

<=> x^2+7x=63-63=0

<=> X(x+7)=0

<=> x1=0

X2=-7

8 0
3 years ago
Read 2 more answers
Mike discovered that the pool in his backyard is leaking slowly. The pool holds 17,897 gallons of water, and is leaking at a rat
pishuonlain [190]

Answer:

Gallons of water remaining = 16,962 gallons

Step-by-step explanation:

Total capacity of the pool = 17,897 gallons

Rate of leakage per day = 5 gallons

Number of days = 187 days

how many gallons of water will remain in the pool after 187 days?

Gallons of water remaining = Total capacity of the pool - (Rate of leakage per day × Number of days

= 17,897 - (5 × 187)

= 17,897 - 935

= 16,962 gallons

Gallons of water remaining = 16,962 gallons

8 0
3 years ago
Write (2a)^4 without exponents
bagirrra123 [75]

Answer: 2a*4*4*4*4= x (Vote me brainliest please)

Step-by-step explanation: Exponents are simply telling you to multiply the base number or expression by that many times.

3 0
3 years ago
Read 2 more answers
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