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
vladimir2022 [97]
3 years ago
8

Carla is 5 years old and Jim is 13 years younger than Peter. One year ago Peter's age was twice the sum of Carla and Jim's age.

Find the present age of each of them
Mathematics
1 answer:
kari74 [83]3 years ago
4 0
Carla = 5 years old
Jim = 2 years old
Peter = 15 years old
(Peter was 14 years old one year ago)
5+2=7
7x2=14 (14 is the age from one year ago meaning 15 is the current age)
15-2=13
You might be interested in
Write an equation of the line in slope intercept form (0,5)(3,4)
hoa [83]
Find slope (y2-y1)/(x2-x1)
(4-5)/(3-0) = -1/3
Y = -1/3x + b
5 = -1/3(0) + b, b = 5
Equation: y = -1/3x + 5
5 0
3 years ago
Read 2 more answers
The triangles are similar
hoa [83]

Answer:

Part 1) x=16\ units

Part 2) x=23\ units

Part 3) AE=20\ units

Part 4) x= 6.25\ units

Part 5) x=26.67\ in

Step-by-step explanation:

Part 1) we know that

If two triangles are similar

then

the ratio of their corresponding sides are equal

so

In this problem

\frac{12}{3}=\frac{x}{4}\\\\3x=12*4\\ \\x=48/3\\ \\x=16\ units

Part 2) we know that

If two triangles are similar

then

the ratio of their corresponding sides are equal

so

In this problem

\frac{36}{12}=\frac{39}{(x-10)}\\\\3(x-10)=39\\ \\x=(39/3)+10\\ \\x=23\ units

Part 3) we know that

If two triangles are similar

then

the ratio of their corresponding sides are equal

so

In this problem

\frac{AB}{CD}=\frac{AE}{ED}

substitute the values

\frac{10}{4}=\frac{2x+10}{x+3}

2.5(x+3)=2x+10

2.5x+7.5=2x+10

2.5x-2x=10-7.5

0.5x=2.5

x=5\ units

AE=2x+10=2*5+10=20\ units

Part 4) we know that

If two triangles are similar

then

the ratio of their corresponding sides are equal

so

In this problem

\frac{4}{5}=\frac{5}{x}\\ \\4x=5*5\\ \\ x=25/4\\ \\ x= 6.25\ units

Part 5) we know that

If two triangles are similar

then

the ratio of their corresponding sides are equal

so

In this problem

\frac{30}{x}=\frac{45}{40}\\ \\45x=30*40\\ \\x=1,200/45\\ \\ x=26.67\ in



3 0
3 years ago
Read 2 more answers
5x 8 = 23 what is x in the equation
ivann1987 [24]
Hope this helps  x= 23/40 
6 0
3 years ago
Can you please answer this question
Nat2105 [25]

Answer:

1. b

2. a

3. d

4. c

Step-by-step explanation:

3 0
3 years ago
A quilt is made of 12 squares of equal size. Each square measures 15 cm by 15 cm.
kolezko [41]

Answer:    12    x    15= 180 cuadrados

juas juas juas 180  +   180  = 360


15 x 15 cm = 360

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • 842 rounded to the nearest ten
    6·2 answers
  • Find the perimeter of the right triangle.
    5·2 answers
  • A stratified sample in which the number of sampling units drawn from each stratum is in proportion to the population size of the
    13·1 answer
  • a drugstores sells pens for $1.50 each and notebooks for $4 each. The owner would like to sell $35 of these items each day.
    12·1 answer
  • In a certain​ country, the true probability of a baby being a boy is 0.518. Among the next four randomly selected births in the​
    5·1 answer
  • 6. You worked a total of 200 hours this summer at the local restaurant. Some of
    10·1 answer
  • A box is filled with 9 red crayons, 5 blue crayons, and 8 yellow crayons. A crayon is chosen at random from the box. Find the pr
    15·1 answer
  • Can someone please tell me the answers but also explain how to do it? Thank you
    13·1 answer
  • What is the slope of 12,-10 and 15,-8
    6·2 answers
  • A polygon has the following interior angle , (y+10); (y+20); (y+30); (y+40); (y+50);
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!