Answer:
14:25
Step-by-step explanation:
for every 25 households, 14 have at least one cat or dog as a pet
Answer:
Jack is 88, Priscilla is 75.
Step-by-step explanation:
Let J represent Jack's age and let P represent Priscilla's age.
Their age totaled 163, so:
And we know that Jack was 13 years older than Priscilla. In other words:
Solve for J and P. To do so, substitute the second equation into the first:
Combine like terms:
Subtract 13 from both sides:
Divide 2 from both sides:
So, Priscilla is 75 years old right now.
Jack is 13 years older meaning that Jack is 88 years right now.
And we're done!
To solve this question, we can do it both ways. we can get rid of the 7 by dividing it, or we can distribute it to the parenthesis. let's do this the distribution way.
63=7(5+7b)
When distributing, the number behind (7) goes to both and all terms in the parenthesis.
63=7(5)+7(7b)
Multiply.
63=35+49b
Subtract 35.
28=47b
Divide by 49.
0.57=b
Answer:
He invested approximately $2,215
Step-by-step explanation:
Mr Y invested $2000 in two accounts.
One pays 7%, and the other pays 5%.
At the end of one year, Mr Y earned $155 in interest. We want to know how much Mr Y invested in the account paying 7%.
Let the amount he invested be X, then
7% of X = 155
(7/100)X = 155
0.07X = 155
X = 155/0.07
= 2,215
He invested approximately $2,215
4(x-3) + 2(x+1)
4x-12+2x+2
6x-10
6(3x-1) - 3(x-5)
18x-6 - 3x+15
15x-21
