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4 years ago

0.02x = 40 what is X step by step explanation

Mathematics

2 answers:

Korolek [52]4 years ago

8 0

Answer:

2000

Step-by-step explanation:

In the equation, there is 0.02 attached to the x. This means multiplication. TO get rid of the 0.02, you need to do the opposite of multiplication. That is division.

Divide both sides by 0.02.

$\frac{0.02x}{0.02} =\frac{40}{0.02}$

$x=2000$

jonny [76]4 years ago

6 0

Answer:

2000

Step-by-step explanation:

0.04/0.02=2

0.4/0.02=20

4/0.02=200

40/0.02=2000

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Plz help me w/these three problems reasonably easy sixth grade math thank you!!!!!

ss7ja [257]

This is simple!
To begin with, arrange all the numbers in order.
#1
5, 5, 20, 20, 25, 30, 35
Mean: add all the numbers together and divide it by how many numbers are there
5+5+20+20+25+30+35=140
there are 7 numbers
Mean: $\frac{140}{7}$ = 20
Median: The middle number, if the set of numbers have an odd number, then the one in between is the median, if there it is an even number, then the mean of the two in-between numbers is the median.
Median: 20
Mode: The most repeated numbers
Mode: 5 and 20
Range: Highest number - lowest number
Range: 35 - 5
30
#2
Order: 44, 48, 48, 49, 59, 61, 63, 68
Mean: 440 (sum of all numbers)
there are 8 numbers in total
$\frac{440}{8}$ = 55
Median: there are 8 numbers so, the mean of the in-between numbers will be the median
49+59=108
2 numbers
$\frac{108}{2}$ = 54
Mode: 48
Range = 68 - 44 = 24

8 0

3 years ago

Which of the following is an equation of the circle with its center at (0,0) that passes through (3,4) in the standard (x,y) coo

natka813 [3]

Answer: x² + y² = 25

Step-by-step explanation: As we have x²+y²=25 (A) as options,

x-y=1 (B)

x+y=25 (C)

x²+y²=5 (D)

We can rule out B and C as they are not circles. Circles must be

(x - xc)² + (y - yc)² = r². They must have index 2.

We have then A or D.

As the circle must pass through (3,4), we can substitute as x=3 and y=4

(A) 3² + 4² = 9 + 16 = 25 ok

(D) 3² + 4² = 9 + 16 = 25 ≠ 5

So, it is A, x² + y² = 25

4 0

3 years ago

1. Combine the like like terms 14 + 8x + 2y -5x - 2

miss Akunina [59]

Answer:

12 + 3x + 2y

Step-by-step explanation:

14 + 8x + 2y -5x - 2

14 + -2 + 8x -5x + 2y

12 + 3x + 2y

7 0

3 years ago

Read 2 more answers

60 points for all the three questions, just please help me

choli [55]

Answer:

D. Neither
x- intercept: (-13/6, 0), y- intercept: (0, 13)
(-1, 3)

Step-by-step explanation:

y = -2x - 5

Substitute pairs of solutions and verify

(1, 7)

7 = -2*1 - 5
7 = -7
Wrong

(2, -7)

-7 = -2*2 - 5
-7 = -11
Wrong

Correct choice is D. Neither

y = 6x + 13

x- intercept: y = 0

6x + 13 = 0
6x = -13
x = -13/6
(-13/6, 0)

y- intercept: x = 0

y = 6*0 + 13
y = 13
(0, 13)

y - 3 = 2(x + 1)

x = -1 ⇒ find y:

y - 3 = 2(-1 + 1)
y = 3
(-1, 3)

8 0

3 years ago

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Which polynomial is prime? x3 + 3x2 – 2x – 6 x3 – 2x2 + 3x – 6 4x4 + 4x3 – 2x – 2 2x4 + x3 – x + 2

alexandr1967 [171]

D. 2x4+x3–x+2 is prime

4 0

3 years ago

Read 2 more answers