Answer:
25a-40b-10 is your answer, hope this helped :)
Step-by-step explanation:
Let X = the number of pennies.
The number of nickels would be 2X
A penny is 0.01 and a nickel is 0.05
Now you have:
0.01x + 2(0.05x) = 8.80
Simplify:
0.01x + 0.10x = 8.80
Combine like terms:
0.11x = 8.80
Divide both sides by 0.11:
x = 8.80 / 0.11
x = 80
Pennies = X = 80 total pennies.
Nickels = 2x = 2 *80 = 160 nickels.
Answer: 7p+3
Step-by-step explanation: Product indicates there will be multiplication involved. You see that it will occur with "a number and 7." This means you will have 7 times any variable. The word "increased" suggests addition will occur. This says the product of previously mentioned numbers will be increased by 3. You now have 7p+3
Answer:
72 feet is the answer. The shadow of the 63 ft tower.