Answer:
Step-by-step explanation:
Givens:
Eq. 1 ) x + y = 5
Eq 2 ) x = 1 + y
plug x into Eq 1 from Eq 2
(1+y) + y = 5
algebra them out
2y = 4
y = 2
then
x + 2 = 5
x = 3
Answer:
x=5.4
Step-by-step explanation:
x/3+5=6.8
-5 -5
__________
x/3= 1.8
*3
________
x= 5.4
Data:
$50 dollars in bills → 50 coins of one dollar
<span>Estimate the mass of one dollar coin
</span>Solving:
50 coins → 405 grams
1 coin → x
<span>The rule of three
</span>
50*x = 405*1
50x = 405


We have:
Answer:
add by 3
Step-by-step explanation:
-8+3=-5
-5+3=-2
-2+3=1
1+3=4