Answer:
<AED
Step-by-step explanation:
Ima be real I cant really explain but i think that's right
Answer:
C
Step-by-step explanation:
-4+(-5)=-9
-4=-9+5
-4=-4......correct
Answer:
49
Step-by-step explanation:
cos(x)=31/47
x=cos^-1 (31/47)
The correct options are
<h3>How to find same value of x?</h3>
given that
first find value of x to obtain the equations have the same value of x.
Find the L.C.M between the 6,3
Then Cross multiplication should be done
Hence the correct options are
Learn more about problems on equations, refer:
https://brainly.in/question/742266
#SPJ9
Answer:
N=250
Step-by-step explanation:
"twice as many nickels as dimes" means N =2D [eq1]
"collection of nickels and dimes is worth $25" means
5N + 10D = 2500 [eq2]
(To avoid using decimal points, PLZ express everything in cents.)
Substitution (substitute N from eq1 into eq2]:
5(2D) + 10D = 2500
10D + 10D = 2500
20D = 2500
D = 125
N=2D [eq1 again]
N=2(125)
N=250
Check:
Is 5(250) + 10(125) = 2500 ?
1250 + 1250 = 2500 ?
2500 = 2500 ?yes
