1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
worty [1.4K]
2 years ago
7

Percy is 8 years older than Ginny. In ten years time he will be three times Ginnys present age. How old is Percy now?

Mathematics
1 answer:
LekaFEV [45]2 years ago
5 0
Now,
G - Ginny's age.
P=G+8, Percy's age.

In 10 years,
G + 10 - Ginny's age in 10 years.
P+10 -  Percy's age in 10 years.

<span> In ten years time Percy (P+10) will be three times Ginnys present age (3G).
P+10=3G

Now we have 2 equations, and we can write a system of equations.

</span>(1)     P=G+8
(2)     P+10=3G  -------> G=(P+10)/3, we need to substitute it into equation 1.

( P=(P+10)/3+8)   /*3
3P=P +10+24
2P = 34
P = 17

Percy is 17 years old now.

Check,
P=17, G=17-8=9
P+10=3G , 17+10=3*9, 27 = 27 True
You might be interested in
Marcie subtracted 17 from 58 and then multiplied by the sum of 6 and 8. Write the expression she used
uranmaximum [27]

Answer:

58 - 17(6 + 8)

8 0
3 years ago
1. Determine whether the graphs of the given equation are Parallel, perpendicular, or neither.
Juliette [100K]
1. A. parallel, because when you get y by itself it is y=-2x+7,  the two equations have the same slope which means they are parallel.

2. B. sometimes, in order for two lines to be parallel they have to have the same slope so, it is possible that two lines say with a slope of 3, those would be parallel BUT it doesn't always have to have a positive slope for it to be parallel like in question 1. 

3. C. never, If they have the same slope they are parallel despite whatever the y-intercept is.
5 0
3 years ago
Read 2 more answers
What is the answer of 17 and 16 ​
Vera_Pavlovna [14]

Answer:

c)

Step-by-step explanation:

16) Cost price = Selling price  * 100 / (100- loss%)

= 800 * 100 / 80 = 10*100 = 1000

Loss = Cost Price - Selling price = 1000 -800 = 200

6 0
3 years ago
The pilot of a plane wants to fly 800 miles east and 155 miles north of the airport. To the nearest degree, in what direction sh
Cerrena [4.2K]
Its b your welcome hope it helps
6 0
3 years ago
Freddy went to the museum and bought a reduced copy of a painting he saw in a exhibit. If the actual painting is 12 inches high,
Snowcat [4.5K]

Answer:

It is probably 6 inches wide. I tried my best

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Find the value of x for which ABCD must be a parallelogram
    12·1 answer
  • Find the simplified form of the expression. Given your answer in scientific notation (8 x 10^4)(9 x 10^8)
    6·1 answer
  • The condition of two sides congruent always creates what kind of triangle?
    13·1 answer
  • 1 4/5, 1/2, -3 7/8, -7/9, -3/5 order the numbers from least to greatest
    5·2 answers
  • Right Triangle Trig.
    10·1 answer
  • A pencil and eraser together cost 55 cents. The pencil costs 50 cents more than the eraser. How much does the eraser costs
    8·1 answer
  • What is 1/6 times 21
    9·2 answers
  • Can someone help me please!! :C
    9·1 answer
  • What is the value of x
    5·1 answer
  • kayla is making a scale drawing of a room in a house. The room actually measures 30 feet by 45 feet. Using the scale 1 in: 15 ft
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!