Answer:
55.96 miles
Step-by-step explanation:
Distance = Speed X time
Car first moved east for 1 hr , distance = 40 x 1 = 40 miles
Car then moved north-east for 30 min, distance = 40 x 0.5 = 20 miles
From trigonometry,
sin 45 = 
; y = 20 sin 45 ; y= 14.14 miles
cos 45 = 
; x = 20 cos 45 ; x = 14.14 miles
using Pythagoras theorem;
= 
+ 
= 
+ 
= 3131.08
= 
z = 55.96 miles
Answer:
√(225x^7y^9) = 15 sqrt(x^7 y^9)
Step-by-step explanation:
Answer:
24
Step-by-step explanation:
(4 times 2 to the third power) - (64 divided by 8) = 4*(2^3) - 64/8
= 4*8 - 8 = 32 - 8 = 24
The answer is 24
Hope this helps :)
Have a great day!
Answer:
7 dollars
Step-by-step explanation:
Because 1/2 a pound is half of 1 pound and 3.50 is the value of half that pound, you can add 3.50 to 3.50 to get 7 dollars which is the value for 1 pound
You should use the ratio so
2/ 4 = 6.5 / n
n= 6.5 x 4 / 2 = 13 inches
2- for two hours ------> four inches of snow
for x hours -----> y inches of snow
the equation is
2/4 = x/ y
x= 2y / 4
for x is the hours and y is the inches
exercice 2
5 gr granula ----------------------> 1750 calories
2 gr granula ----------------------> n ?? calories
by cross multiplication
n = 2 x1750 / 5 = 700 calories .
2-
she wants to eat 175 calories so
u put granula under granula and calories under calories to make this cross
<span>5 gr granula ----------------------> 1750 calories
</span>??? m granula ---------------------> 175 calories
<span>by cross multiplication </span>
m = 175 x 5 / 1750 = 0.5 gr of granula
