Answer:
8x !
Step-by-step explanation:
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
Answer:
34 cm squared
Step-by-step explanation:
You would need to fill in the cut out part of the shape. Find the area of the whole shape minus the area of the cut out shape.
Area of the bigger shape :6*9 =54cm squared
Area of the cut out shape:4*4=20cm squared
<h3>Area of the whole shape is 54 - 20 = 34cm squared</h3>