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
shtirl [24]
3 years ago
13

HELP ME! NEW AND WILL MARK BRAINLIEST!!!

Mathematics
1 answer:
vredina [299]3 years ago
6 0

The present age of the mother is 30 years.

<u>Step-by-step explanation</u>:

Step 1 :

At present,

  • Age of Jane = x
  • Age of Billy = 5x
  • Age of mother = 3(5x) = 15x

Step 3 :

After 2 years,

  • Age of Jane = x+2
  • Age of mother = 8 times as Jane = 8(x+2)

Step 3 :

Age of mother at present + 2 years = Age of mother after 2 years

⇒ 15x + 2 = 8(x+2)

⇒ 15x + 2 = 8x + 16

⇒ 7x = 14

⇒ x = 2

Step 4 :

Substitute x=2,

Age of mother at present = 15x = 30 years.

You might be interested in
What is the equation for​
WARRIOR [948]

The equation of a line that is perpendicular to the given line is y = –4x – 16.

Solution:

The equation of a line given is y = 0.25x – 7

Slope of the given line(m_1) = 0.25

Let m_2 be the slope of the perpendicular line.

Passes through the point (–6, 8).

<em>If two lines are perpendicular then the product of the slopes equal to –1.</em>

\Rightarrow m_1 \cdot m_2=-1

\Rightarrow 0.25\cdot m_2=-1

\Rightarrow m_2=\frac{-1}{0.25}

\Rightarrow m_2=-4

Point-slope intercept formula:

y-y_1=m(x-x_1)

x_1=-6, y_1=8 and m=-4

Substitute these in the formula, we get

y-8=-4(x-(-6))

y-8=-4(x+6)

y-8=-4x-24

Add 8 on both sides of the equation.

y-8+8=-4x-24+8

y=-4x-16

Hence the equation of a line that is perpendicular to the given line is

y = –4x – 16

5 0
3 years ago
What is the slope of a line perpendicular to the line whose equation is
seropon [69]

Answer:

1

Step-by-step explanation:

x+y=-9

y=-x-9

So slope of original line is -1.

The line perpendicular to the original line is -1/-1 = 1

5 0
3 years ago
Read 2 more answers
Angles and polygons
Andre45 [30]

Answer:

∠1 = 66°

Step-by-step explanation:

∠1 + ∠3 = ∠4 (exterior angle theorem)

∠1 + 57° = 123°

∠1 = 66°

8 0
2 years ago
Please help! I will give brainliest
marishachu [46]

Step-by-step explanation:

Kim: 25

Stacy: t

Total: 57

Equation:

25+t=57

solve for t

t=57-32=32

Stacy made 32 necklaces

4 0
3 years ago
Read 2 more answers
A plane leaves at 11:22 am .and arrived at 3:13 pm. how long was the flight?
ale4655 [162]

Answer:

3 hours and 51 minutes

Step-by-step explanation:

Take the ending time and subtract the start time

3:13pm - 11:22am

Remember that pm means aft 12 o'clock in the after noon so add 12 hours

12+3:13 - 11:22

15:13 - 11:22

We are subtracting more minutes than we have so we have to borrow from the hours

1 hour = 60 minutes

14 : 60+13 - 11:22

14:73 - 11:22

3: 51

3 hours and 51 minutes

7 0
3 years ago
Other questions:
  • Why does a horizontal line have a slope of zero, but a vertical line have an undefined slope?
    11·1 answer
  • an airport parking lot charges a basic fee of $2 plus $1 per half-hour parked. what is the total charge from parking in the lot
    14·1 answer
  • Can someone please help me!!!!!!!!!!
    9·1 answer
  • The measure of angle 1 is 6x - 2 and the measure of angle 2 is 5 x + 4 find X
    8·1 answer
  • Find the value of the determinant.<br> 4 8 10<br> 4 0-1<br> 3 - 2 4
    13·1 answer
  • What is the mean absolute deviation of the data set? Use paper and pencil,
    11·1 answer
  • Nine -tenths of zak's friends do volunteer work after school. what is nine-tenths in standard form?
    12·1 answer
  • If r - 5y = 6, what is the value of y when:=-4?
    15·2 answers
  • 19 Juliette and Laura each started with the
    8·1 answer
  • What is the area of this parallelogram?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!