Answer: y=2
Step-by-step explanation:
2x+3y=14 - 2x-y=6 = 4y=8
y=2
If you need x, just insert y into the equation and work out x from there
2x-2=6
2x=8
x=4
minus 6
Step-by-step explanation:
From 49 to 43 you minus 6
from 43 to 37 you minus 6
Please give me brainliest!
Answer:
= 0.00334
therefore,
3,872.80 > 0.00334
Step-by-step explanation:
Which statement is correct?
(2.06x102x1.88 x 10-1) <7.69x 10
2.3x10-5
(2.06 x 10-2)(1.88 x 10-1) 7.69x 10-
2.3x10-5
7.69 x 10"
(2.06 x 10-2x1.88x10-)>
2.3x10-5
(2.06x 10-2X(1.88x 10-1)-7.69x104
2.3x10-5
Given that;
= 0.00334
therefore,
3,872.80 > 0.00334
Answer: 10, 11, & 12
<u>Step-by-step explanation:</u>
Let x represent the age of the youngest child.
Their ages are consecutive so,
Youngest: x
Middle: x + 1
Oldest: x + 2
The age of the Youngest squared (x²) equals 8 times the Oldest [8(x + 2)] plus 4.
x² = 8(x + 2) + 4
x² = 8x + 16 + 4
x² = 8x + 20
x² - 8x - 20 = 0
(x - 10)(x + 2) = 0
x - 10 = 0 or x + 2 = 0
x = 10 or x = -2
Since age cannot be negative, x = -2 is not valid
So, the Youngest (x) is 10
the Middle (x + 1) is 11
and the Oldest (x + 2) is 12
