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2 years ago

15

A certain rechargeable battery is advertised to recharge up to 99% of its previous capacity with every charge. If its initial ca

pacity is 8 hours of life, how many hours should the battery last?
A. 200
B. 400
C. 600
D. 800

1 answer:

lakkis [162]2 years ago

6 0

The answer of this question is D

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Find two numbers, if their sum is 49 and their difference is 1/2 .

amm1812

Answer:

$x=24\frac{3}{4}\\ y=24\frac{1}{4}$

Step-by-step explanation:

Let the two numbers be x and y

So we have:

$x +y = 49\\x-y=\frac{1}{2}$

using the elimination method, add the two equations together:

$2x=49\frac{1}{2} \\2x=\frac{99}{2}$

solve for x:

$x=\frac{99}{4}\\x=24\frac{3}{4}$

substitute our value for x back into the first equation we made:

$x+y=49\\(\frac{99}{4}) + y=49\\y=49-\frac{99}{4}\\y=\frac{97}{4} \\ y=24\frac{1}{4}$

therefore,

$x=24\frac{3}{4}\\ y=24\frac{1}{4}$

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3 years ago

You volunteer to help drive children at a charity event to the zoo, but you can fit only 7 of the 20 children present in your v

mina [271]

Answer:

for of the vans will have 0.5 and ond will have 0.3

Step-by-step explanation:

7 0

3 years ago

How do I solve this? 25 points

Bad White [126]

Answer:

66

Step-by-step explanation:

Both bottom angles are equal

So x+x+48=180

Subtract 48 from both sides

So 2x=132

Divide both sides by 2

x=66

6 0

2 years ago

Read 2 more answers

This is only the first question out of many

klemol [59]

3, 5, 7
wanna know why, or do you not care?

4 0

3 years ago

If tom had 100g rice how would u convert it to kg

notka56 [123]

<u>répondre:</u>

<u>bonjour</u>

<u>si tom avait 100 g de riz il va convertir 100g en kg</u>

<u>Étape par Étape explication:</u>

<u>= 0,1 kg</u>

<u>bonne journée</u>

3 0

2 years ago