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
ahrayia [7]
3 years ago
9

My mum was 27 when I was born. 8 years ago she was twice as old as I shall be in 5 years time. How old am I now?

Mathematics
1 answer:
allochka39001 [22]3 years ago
4 0
Use timeline and work from NOW
me. mom
(1) @born 0. 27
My mum was 27 when I was born.
(2) now-8. x-8. y-8
(3) now. x y
(4) now+5. x+5. y+5

(1)&(3). y-x = 27-0 = 27

8 years ago she was twice as old as I shall be in 5 years time.
(2)&(4). y-8 = 2(x+5)

2 variables 2 equations ... solve x
x = 9, y = 36
You might be interested in
Draw a model to represent the problem
Mazyrski [523]
2 because if you convert the fractions into decimals then divide it that way it will be 2
6 0
3 years ago
I need help asapp...
prohojiy [21]

The value of b is -16 and the value of ac is 60 after comparing with the standard equation.

<h3>What is a quadratic equation?</h3>

Any equation of the form \rm ax^2+bx+c=0 where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

As we know, the formula for the roots of the quadratic equation is given by:

\rm x = \dfrac{-b \pm\sqrt{b^2-4ac}}{2a}

We have a quadratic function:

= 3x² - 16x + 20

On comparing with standard function:

b = -16

a = 3

c = 20

ac = 3(20) = 60

Thus, the value of b is -16 and the value of ac is 60 after comparing with the standard equation.

Learn more about quadratic equations here:

brainly.com/question/2263981

#SPJ1

3 0
1 year ago
How many 1/8-pound patties can Mrs. Drake make from 7/8 of a pound of a hamburger?
GenaCL600 [577]
Mrs.Drake can make 7 1/8-pound patties.
5 0
2 years ago
A scale drawing of a square has a side length of 6 millimeters. The drawing has a scale of 1 mm : 7 km. Find the actual perimete
zvonat [6]

Answer:

The real perimeter is:

P= 24 mm *\frac{7 km}{1mm}= 168 km

And the area would be:

P = 36mm^2 *\frac{(7km)^2}{(1mm)^2} = 1764 km^2

Step-by-step explanation:

For this case we know one side of a square given 6mm.

We can begin calculating the perimeter for the scale figure with this formula:

P = 4x = 4*6 mm =24 mm

The area for this case is given by:

A = x^2 = 6mm^2 = 36 mm^2

And we know that the drawing has a scale of 1 mm : 7 km and if we convert the perimeter to km we got:

P= 24 mm *\frac{7 km}{1mm}= 168 km

And the area would be:

P = 36mm^2 *\frac{(7km)^2}{(1mm)^2} = 1764 km^2

6 0
2 years ago
What is the answer to 1-4q=-20
ikadub [295]

Answer:


Step-by-step explanation:

1-4q = -20

-4q = -21

q = 5.25

5 0
3 years ago
Other questions:
  • With these numbers I have to find the median. Please help mee!!
    6·2 answers
  • Helpppp!!! Plzzzzzzzz
    7·2 answers
  • GUYS PLEASE HELP ME HELP HELP PLEASE PLEASE!!! Simplify and solve for the unknown. Use order of operations as needed. Check your
    8·1 answer
  • The total cost of four pens and seven mechanical pencils is $9.73. The cost of each mechanical pencil is 0.75 cents. Which repre
    7·1 answer
  • Assume Plant B received sunlight, and its rate of change was 1.6 inches a week instead of 1.4 inches per week. Would it be talle
    7·2 answers
  • does anyone know the questions and answers for FLVS MATH 7 grade DBA 3.00 module??? someone please help instead of telling me to
    7·1 answer
  • Help is needed thanks
    5·1 answer
  • 7≥12−g solve for inequality<br> Plzz help me Its from khan academy
    9·2 answers
  • a warehouse has 3 shelves long enough to hold 6 boxes and high enough to hold 4 boxes. All the shelves are full. There are blank
    6·1 answer
  • Bob has 150 grams of gold, and he wants to use it all to make a cube. Given that the density of gold is 19.3 grams / cubic centi
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!