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Kryger [21]
3 years ago
13

Mark charged a battery. Each minute, the percentage of the battery's capacity that was charged increased by 2.5 percent After 17

minutes of charging, the battery was 61.5 percent full. How full was the battery when the charging began?, How long from the time that Mark started charging did it take the battery to be fully charged?
Mathematics
1 answer:
zhannawk [14.2K]3 years ago
3 0

Answer:

The battery was 19 percent when the charging began.

It took 32.4 minutes for the battery to be fully charged.

Step-by-step explanation:

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Rewrite the expression using a radical.<br> 1<br> 8<br> 256<br> =<br> (Do not evaluate.)
spayn [35]

Answer:

256 DIVIDE BY 8 THEN PLUS 1

Step-by-step explanation:

6 0
2 years ago
The average of a list of 4 numbers is 90.0. A new list of 4 numbers has the same first 3 numbers as the original list, but the f
Thepotemich [5.8K]

Answer:

the average of this new list of numbers is 94

Step-by-step explanation:

Hello!

To answer this question we will assign a letter to each number for the first list and the second list of numbers, remembering that the last number of the first list is 80 and the last number of the second list is 96

for the first list

\frac{a+b+c+80}{4} =90

for the new list

\frac{a+b+c+96}{4} =X

To solve this problem consider the following

1.X is the average value of the second list

2. We will assign a Y value to the sum of the numbers a, b, c.

a + b + c = Y to create two new equations

for the first list

\frac{y+80}{4} =90

solving  for Y

Y=(90)(4)-80=280

Y=280=a+b+c

for the second list

\frac{y+96}{4} =X\\

\frac{280+96}{4} =X\\x=94

the average of this new list of numbers is 94

4 0
3 years ago
Read 2 more answers
Is 243 prime??????????
Fofino [41]
No, 243 is not a prime number, it is a composite number.

I hope I helped you again :-)
5 0
3 years ago
Read 2 more answers
A − 7 = 3 (b+2) pls answer soon
Alexeev081 [22]
I believe the answer is....

For solving for a

a-7= 3(b+2) ———> distribute 3(b+2)
a-7= 3b+6 ———-> add 7 on both sides

a-7= 3b+6
a+7= 3b +7 ———-> the 7’s cancel out so you’re left with....

a = 3b + 13 (That’s your answer)

Hope that helped :3
8 0
3 years ago
A chef buys 9cucumbers,18 peppers, and 21 tomatoes at the farmer's market. How much does she spend?
stepladder [879]
HAY THERE!

ACCORDING TO QUESTION:-
Cucumbers = 6 for $2
Peppers = 12 for $9
Tomatoes = 6 fir $4
____________
SO NOW
____________
\huge{SOLUTION:- }
____________
For 9 cucumbers = as 6 cucumbers is for $2 then 9 will be of $3........1️⃣

For 18 peppers = as 12 peppers are for$9 so 18 will be of $12.........2️⃣

For 21 tomatoes =as 6 tomatoes are for $4 then 21 tomatoes are $14 .......3️⃣

Now add 1️⃣ +2️⃣ + 3️⃣

here $3 +$12 + $14= $29

HOPE IT HELPED YOU.
6 0
3 years ago
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