199 + 200 = 399
199 and 200 is the pair.
The number of standard version download and high-quality download is 870 and 490 respectively.
<h3>Number of downloads of the high-quality version</h3>
let
- Number of high-quality download = y
- Number of standard version = x
x + y = 1360
2.9x + 4.1y = 4532
From (1)
x = 1360 - y
Substitute x = 1360 - y into (2)
2.9x + 4.1y = 4532
2.9(1360 - y) + 4.1y = 4532
3944 - 2.9y + 4.1y = 4532
- 2.9y + 4.1y = 4532 - 3944
1.2y = 588
y = 588/1.2
y = 490
Substitute y = 490 into (1)
x + y = 1360
x + 490 = 1360
x = 1360 - 490
x = 870
So therefore, number of standard version download and high-quality download is 870 and 490 respectively.
Learn more about simultaneous equation:
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Answer:
1/2 one half
Step-by-step explanation:
Answer:
The scale factor used is 0.4
Step-by-step explanation:
Given


Required
Determine the scale factor of RST
The question can be solved using scale factor formula
Scale factor is calculated as thus;

In this case; R' is the new length and R is the old length

Substitute the values of R and R'

Factorize the denominator



<em>Hence, the scale factor used is 0.4</em>
Answer:
12.63
Step-by-step explanation: