The ratio Tangent is the opposite side over the adjacent side of the angle.
Tan (x) = 8/15
We need to do a system of equations here.
x + y = 275 (if you travel <em>x</em> km by bike and <em>y </em>km by bus, then you travel 275 km as given in the problem)
y = x + 55 (the problem stated that they were bussed (y) the amount they biked plus 55 more km (x + 55))
The second equation is already solved for y. So, we can plug it in to the first equation.
x + (x + 55) = 275
2x + 55 = 275 [combine x terms]
2x = 220 [subtract 55 from both sides]
x = 110 [divide by 2 to isolate x and solve for it]
Now we know that x is 110, the distance they traveled by bike.
And that's what we needed to answer the problem!
Answer:
win the lotto
Step-by-step explanation:
Answer:
D 4/121
C 14/55
Step-by-step explanation:
The total number of tiles in mathematics is 11
P(a) = number of a's/ total = 2/11
We replace the tile
so there are 11 tiles and the are mathematics
P(a) = number of a's/ total = 2/11
P(a, replace then a) = 2/11 *2/11 = 4/121
P(vowel) = vowel/total = 4/11
We keep the vowel so there are only 10 tiles
3 vowels and 7 consonants
P( consonants) = consonant/total = 7/10
P(vowel, no replace, consonant) = 4/11*7/10 = 14/55
Answer:
-12
Step-by-step explanation:
−2.5+(−7.4)−(−1.2)−(+3.9)+(+0.6)
Subtracting a negative is adding
−2.5+(−7.4)+(1.2)−(+3.9)+(+0.6)
Combine like terms
-9.9 +(1.2)−(+3.9)+(+0.6)
-8.7-3.9+.6
-12.6+.6
-12
