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
lora16 [44]
3 years ago
11

If Nina is N years old now and Maryna is M years old now, write… Four years ago, Nina was three times as old as Maryna was.

Mathematics
1 answer:
almond37 [142]3 years ago
3 0

Answer:

N - 4 = 3(M - 4). Simplified further, N - 4 = 3(M - 4)

Step-by-step explanation:

Given,

Nina is N years old now and;

Maryna is M years old now

If four years ago, Nina was three times as old as Maryna was, then

Four years ago, Nina's age was N - 4

Four years ago, Maryna's age was M - 4

Given that Nina was three times as old as Maryna was four years ago, it means that

N - 4 = 3(M - 4)

To solve further

N = 3m - 12 + 4

N = 3M - 8

You might be interested in
What is the sum of 1 1/2 and 4 2/3
Eddi Din [679]
Hi,

Work:

1 \frac{1}{2} + 4 \frac{2}{3} \\ \\ 1 \frac{3}{6} + 4 \frac{4}{6} = 5 \frac{7}{6} = 6 \frac{1}{6}

Hope this helps.
r3t40
6 0
3 years ago
Read 2 more answers
Simplify this expression. –6x –8 –7x
julia-pushkina [17]

Answer:

-13x-8

Step-by-step explanation:

5 0
3 years ago
Write and solve an equation to find the width of the box if its volume is 80 cubic centimeters. Then find its surface area.
Lelu [443]

Answer:

L=4.30cm

SA=  110.94cm^2

Step-by-step explanation:

Given data

Volume of box= 80 cm^3

We know that the volume of a box is given as

V= l^3

80=l^3

l= ∛80

l= 4.30cm

also the surface area of a box is given as

SA=2lw+2lh+2hw

SA= 2* 4.30* 4.30+2* 4.30* 4.30+ 2* 4.30* 4.30

SA= 36.98+36.98+36.98

SA= 110.94cm^2

4 0
3 years ago
1. An integer is 3 less than 5 times another. If the product of the two integers is 36, then find the integers.
melisa1 [442]

Answer:

3 and 12

Step-by-step explanation:

3*5=15 and 15-3=12. The product of 3 and 12 is 36.

5 0
3 years ago
Read 2 more answers
An online furniture store sells chairs for $150 each and tables for $550 each. Every day, the store can ship a maximum of 40 pie
Katen [24]

Answer:

minimum of 13 chairs must be sold to reach a target of $6500

and a max of 20 chairs can be solved.

Step-by-step explanation:

Given that:

Price of chair = $150

Price of table = $400

Let the number of chairs be denoted by c and tables by t,

According to given condition:

t + c = 30 ----------- eq1

t(150) + c(400) = 6500 ------ eq2

Given that:

10 tables were sold so:

t = 10

Putting in eq1

c = 20 (max)

As the minimum target is $6500 so from eq2

10(150) + 400c = 6500

400c = 6500 - 1500

400c = 5000

c = 5000/400

c = 12.5

by rounding off

c = 13

So a minimum of 13 chairs must be sold to reach a target of $6500

i hope it will help you! mark me as brainliest pls

§ALEX§

6 0
3 years ago
Other questions:
  • Common core review multipy find each product 15x20
    6·2 answers
  • How do I solve 2x+3y=7, x-y=1
    15·2 answers
  • Julia used 1 foit square stone tiles to make a patio. She laid the tiles in a square, 7 tiles wide by 7 tiles long. what isthe a
    14·1 answer
  • Order from greatest to least 1.62 16.2% 15/20​
    9·2 answers
  • What is 144.44 rounded to the nearest tenth?
    13·1 answer
  • Christmas Tree lights are used not only for Christmas trees, but sometimes to decorate college dorm rooms. Suppose that a string
    5·1 answer
  • What is the solution set of |- x| = - 10?
    5·1 answer
  • Can someone help me with this question 2x+3=15 is x
    11·2 answers
  • If you know this please help.
    14·1 answer
  • Please solve with explanation
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!