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PIT_PIT [208]
2 years ago
8

15. Express 2/5 as a percentage​

Mathematics
2 answers:
blsea [12.9K]2 years ago
7 0

Answer:

40\%

Step-by-step explanation:

\frac{2}{5}  \times 100 = 40\%

Vanyuwa [196]2 years ago
5 0

Divide 2 by 5 to get a decimal, then multiply the decimal by 100 to get a percent.

2/5 = 0.4

0.4x100 = 40

2/5 = 40%

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Carbon dioxide comprises approximately what percentage of the atmosphere
In-s [12.5K]

The Carbon Dioxide in the atmosphere is only very small relative to other gases. Typically, it only consists about 0.038 percent or 0.04 percent of the gases in the atmosphere.

<span>
Even though it is only small, CO2 is very important since it is one of the greenhouse gases which ensures that the Earth stays warm.</span>

8 0
3 years ago
A triangle has the vertices A(-7, 8), B(1, -7), and C(7,6). After a dilation, the vertices of the image are A(-28, 32).
steposvetlana [31]

Answer: the answer is A.4

Step-by-step explanation:

Dilation in this context is the transformation is an object into a larger one.

ABC is transformed to A'B'C'

To get the scale factor, we divide the coordinates of A'B'C' by ABC

i.e

A'/A = -28/-7, 32/8 = 4

Or

B'/B = 4/1, -28/-7 = 4

Or

C'/C = 28/7, 24/6 = 4

4 0
3 years ago
: student council is selling tickets to the fall ball dance. Tickets cost $6.00 per person , or $10 per couple. To cover the exp
Mademuasel [1]

6x  + 10y \geqslant 1450
This basically says that the total money made from tickets will be gretarr than or equal to $1450.
5 0
3 years ago
The sum of two numbers is -30. The difference of the two numbers is 18. What are the two numbers?
Vitek1552 [10]
The two numbers are -6 and -24
3 0
2 years ago
For each value of U, determine whether it is a solution,
abruzzese [7]
Given u/7 - 1 = 7 and plugging in values for u,

For u = 28; 28/7 - 1 = 4 - 1 = 3; No
For u = -49; -49/7 - 1 = -7 - 1 = -8; No
For u = 42; 42/7 - 1 = 6 - 1 = 5; No
For u = 0; 0/7 - 1 = -1; No

Another way to find out which value would be a solution to u/7 - 1 = 7 is to solve for u.

u/7 - 1 = 7
u/7 = 7 + 1
u/7 = 8
u = 8*7
u = 56

The only solution to this equation is when u = 56.
8 0
3 years ago
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