Answer:
Sam sokey 0.5 hours biking and 3.5 hours walking
Step-by-step explanation:
Here, we want to know the number of hours spent walking and biking
Mathematically; distance = speed * time
Let the number of hours spent walking be x and the number of hours spent biking be y
Mathematically;
x + y = 3 •••(i)
distance spent walking = 4 * x = 4x miles
distance spent biking = 12 * y = 12y miles
4x + 12y = 20
divide through by 2
2x + 6y = 10 ••••••(ii)
From i , x = 4-y
Substitute this into ii
2(4-y) + 6y = 10
8 - 2y + 6y = 10
8 + 4y = 10
4y = 10-8
4y = 2
y = 2/4 = 0.5 hours
The number of hours spent walking = 4-0.5 = 3.5 hours
The hypotenuse can be solved by this formula. X^2 = 6^2 +6^2
X^2=64
Usually you cut it down to 8 but it wants the squared form so 64.
Answer is option II
Given that there are 7 points earned for each touch down and 3 points for each field goal.
t represents thenumber of touchdowns and f the number of field goals.
Then points scored would be 7(t) +3(f) = 7t+3f
Hence we get 7t+3f =55
Also number of field goals was 1 more than twice the number of touchdowns.
Twice the touchdowns = 2(t)
f = 2t+1
Hence the two equations would be:
f = 2t+1
7t+3f =55
Hence option ii is the right answer.
Answer:
it would be 6 and 4/3
Step-by-step explanation:
If you minus 10 -4 you get 6 and then you have to find a number that will go into 3 and 6 and that would be 3 so then you minus 5-1 which equals 4 and then the denominator stays the same
Answer:
No
Step-by-step explanation:
-2/5 is not equal to 2/5 because it is negative and 2/5 is positive. This actually means that -2/5 is the opposite of 2/5.
