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
NeTakaya
3 years ago
12

5 times marys age is the same as 28 less than 7 times her age. Find her age

Mathematics
2 answers:
OleMash [197]3 years ago
7 0

Answer:

14yrs

Step-by-step explanation:

Mary’s age=x

5•x = x•7-28

=> 5x-7x= -28

=> -2x= -28

=> x= -28/-2

=> x= 14

Gnom [1K]3 years ago
3 0

setup a simple algebraic equation and solve.

5x = 7x-28

-5x   -5x

0=2x-28

+28  +28

28=2x

Now divide both sides by 2 and you get that she is 14

You might be interested in
HELP WITH VOLUME AND SURFACE AREA!!!!!! WILL MARK BRAINLIEST!!!!!
ArbitrLikvidat [17]

Answer:

Volume is 48 yards cubed

surface area is 96 yards squared

4 0
3 years ago
Which is equivalent to this expression?<br> 2/150 + 3/75
Lesechka [4]

Answer:

Step-by-step explanation:

\frac{2}{150}    First reduce this to lowest term

\frac{2}{150}=\frac{1}{75}\\\\\frac{2}{150}+\frac{3}{75}=\frac{1}{75}+\frac{3}{75}\\\\=\frac{1+3}{75}=\frac{4}{75}\\

7 0
3 years ago
What is the simplified form of 2 times 10 squared to the second power in standard notation?
Semmy [17]
<span>2 times 10 squared to the second power in standard notation

2 x(10^2)^2
=2x10^4
=20000</span>
4 0
3 years ago
Read 2 more answers
Find the prime factorization of 210.<br><br> 2 X 3 X 5 X 7<br> 2 X 3 X 35<br> 2 X 7 X 15
lara31 [8.8K]
The answer is:  [A]:  " 2 × 3 × 5 × 7 " .
________________________________________________________

210 = 70 * 3 ;

70 * 3 = 35 * 2 * 3 ;

35* 2* 3 = 7 * 5 * 2 * 3 ; which corresponds to "Answer choice:  [A]." .
________________________________________________________
6 0
3 years ago
Read 2 more answers
.A square field has a side 30m. Find the cost of fencing its four sides at Rs. 10 per metre​
Ratling [72]

Answer:

1,200

Step-by-step explanation:

So first we need to find the perimeter

P=30+30+30+30\\\\P=120

so it costs 10 per meter

120\times 10=1,200

7 0
3 years ago
Other questions:
  • What is the length of segment AB?<br> Consider the diagram.<br> 07<br> 09<br> O 18<br> O 25
    12·1 answer
  • Find the quotient. <br> A1,528<br> B1,524R<br> C1,524<br> D1,525R
    9·2 answers
  • If f(x) = 2x ^ 2 + 1 1 and g(x) = x ^ 2 - 7 find (f - g)(x) ).
    7·1 answer
  • Evaluate BC for A = 5, B = 4, and C = 2.<br> 06
    5·2 answers
  • I need help please !!
    12·2 answers
  • One year Perry had the lowest ERA​ (earned-run average, mean number of runs yielded per nine innings​ pitched) of any male pitch
    13·1 answer
  • The mean housing price for an area is $135,000 with a standard of $45,000 but is not normally distributed. According to the Cent
    6·1 answer
  • This figure shows the mer
    15·1 answer
  • 2
    15·1 answer
  • Help please
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!