Answer:
There are 18 dimes in the jar
Step-by-step explanation:
Let
x = number of dimes in the jar
y = number of quarters in the jar
Total = $3.80
There are ten less quarters than dimes
y = x - 10
0.1x + 0.25y = 3.80
0.1x + 0.25(x - 10) = 3.80
0.1x + 0.25x - 2.5 = 3.80
0.35x = 3.80 + 2.5
0.35x = 6.30
x = 6.30/0.35
x = 18
On the first day you made 30$
On the second day you lost 20$
On the 3rd day you lost 40$
On the final day you made 60$
30+(-20)+(-40)+60
90-60
=30
You had a profit of 30$
Answer:
1hr 36 minutes
Step-by-step explanation: Time = Distance / Speed
x = 40/25
x = 1 3/5
3/5 of 1 hour is 36 minutes
The answer is 1 hr and 36 minutes
Answer:
answer is 90 for first term
Step-by-step explanation:
Let the terms be
First term x
We will use the formula s∞=x/1−r to find the sum of an infinite geometric series, where −1<r<1.
We know the sum and the common ratio, so we'll be solving for x where r =4/5
s∞=x/1−r
450=x/1−4/5
450=x/1/5
450=5x
x=90
this is the first term x1 = 90
we know that common ratio is 4/5, so multiplying the first term by factor 4/5 to get the second term
90 x 4/5= 72 second term
Answer:
The baby weighs 8 pounds.
Step-by-step explanation:
Since there are 16 ounces in 1 pound, you divide 128 by 16 to get 8.