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rjkz [21]
2 years ago
15

Five years ago a girl was one-half as old as her brother was then, and now she is three years younger than he is. What are their

present ages?
A) girl is 7; brother is 10

B) girl is 8; brother is 11

C) girl is 9; brother is 12
Mathematics
2 answers:
podryga [215]2 years ago
7 0
The girl is 8 and her brother is 11


Aloiza [94]2 years ago
3 0
The answer is B because they would have been 3 and 6.
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Jully bought 3 slices of cheese pizza and 4 slices of pepperoni pizza for $18.00. Christian bought 3 slices of cheese pizza and
andrew11 [14]

Answer:

$2.00

Step-by-step explanation:

You can form an equation with these statements, x being the price of cheese pizza and y being the price of pepperoni. Making the equation,

3x+4y=18

3x+2y=12

Solving the equation,

3x+4y=18

6x+4y=24

-3x=-6

x=2

y=3

Solving another way,

2y=6

y=3

x=2

Therefore, the answer is $2.00

8 0
2 years ago
Peter invests £3000 for 2 years in a saving account. He was paid 3% per annum compound interest. How much did Peter have in his
madam [21]

Answer:

£3182.7

Step-by-step explanation:

£3000=100%

? =3%

3×3000/100

=£90

£(3000+90)=£3090(1st year)

£3090=100%

? =3%

3×3090/100=£3182.7

4 0
3 years ago
4(4)<br> 4(5)<br> 4(6)<br> 4(7)<br> 4(8)<br> 4(9)<br> 4(10)
lakkis [162]

Answer:

16,20,24,28,32,36,40

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Mable has 185 dollars worth of apples. Each apple is worth more then 3 dollars but less then 10 dollars. The number has four let
velikii [3]

Answer:

The worth of each of Mable's apples is $5

Step-by-step explanation:

 Extracting the key information from the question:

***Mable has apples that are worth a combined 185 dollars.

*** One apple from Mable's apples worth more than three ($3) dollars but less than ten ($10) dollars.

***The cost of one apple is a number that has four letters.

*** That number (the cost) of one apple is also a prime number.

*** We are required to find or determine the worth of one of Mable's apples.

   Now, one of the clues given to us which we may use to figure out the cost or worth of one apple is that the apple is worth more than three dollars ($3) but worth less than ten dollars ($10). This means that each Mable's apple may worth $4 or $5 or $6 or $7 or $8 or $9. That is one of Mable's apples worth from $4 to $9

   Another clue to solving this puzzle is that the worth of one apple in dollars is a prime number. This implies that one of Mable's apples may worth either five dollars ($5) or seven dollars ($7).

   

  The next clue for unravelling this mystery is that all Mable's apples are worth a combined $185. This then means that the worth of each apple (the number) must be able to divide 185.

   Since $7 and $5 are the only two figures left standing, we will then try and see which one of them will be able to do divide the number "185".

 185/7  = 26 remainder 3

 185/5  = 37 remainder 0

 The final clue in the question is that the worth of each of Mable's apples is a figure/number that has only letters:

$7 SEVEN has = 5 letters

$5 FIVE has = 4 letters

 This now brings us to the conclusion that the worth of each of Mable's apples is five dollars ($5)  since it meets all the requirements and clues in the question.

6 0
2 years ago
A sofa regularly sells for $ 500 $500. the sale price is $ 475.00 $475.00. find the percent decrease of the sale price from the
maxonik [38]
5% decrease 495/500= .95, 1.00-.95= .05
3 0
2 years ago
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