Answer:
Moby weighs 1250Kgs
Step-by-step explanation:
Tim is 4% of Moby so
T =4%m
if T is for Tim and Tim weighs 50kgs then
50=4%m
100/4=25
25*50=1250
M = 1250Kgs
Let n be the number. The difference of the number and six is n-6. Then three times the difference of the number and six is 3·(n-6). This number 3·(n-6) increased by four times the number n, then
3·(n-6)=4·n.
Solve it:
3·n-3·6=4n,
3n-4n=18,
-n=18,
n=-18.
Answer: n=-18 and expression is 3·(n-6)=4·n.
Sorry I don’t know ): hopefully someone answeres
Answer:
it take 1/7 km in 1 hour then,
1 km it take 7 hours
so, it cover 5 km in 35 hours
1/7 km ------- 1 hour
1km ------- 7 hour
5km -------( 5*7) == 35 hours
X² + 18x + 79 = 0
x = <u>-(18) +/- √((18)² - 4(1)(79))</u>
2(1)
x = <u>-18 +/- √(324 - 316)</u>
2
x = <u>-18 +/- √(8)
</u> 2<u>
</u>x = <u>-18 +/- 2√(2)
</u> 2<u>
<em /></u><em />x = -9 <u>+</u> √(2)
x = -9 + √(2) x = -9 - √(2)