jaeden15 jaeden15

26-01-2021
Mathematics

contestada

5. Mark's brother is five years older than Mark.
Their combined ages add up to 23. How old is
Mark?

Respuesta :

MeiLiuSA MeiLiuSA

26-01-2021

Answer:

9

Step-by-step explanation:

Let's say Mark is M and his brother is B.

M+5=B

M+B=23

Now we can solve using subsitution.

M+M+5=23

(Subtract 5 from both sides)

2M=18

M=9

Hope this helped!

Answer Link

Otras preguntas

On a recent survey, 60% of those surveyed indicated that they preferred walking to running. If 540 people preferred walking, how many people were surveyed?

Awnser.Ignore what i put its wrong Pls awnser i’ll give brainpower

Can anyone let me use their Netflix account?Thank you!

Dr. Armando wants to study sex workers' concerns about their personal safety. She begins by contacting three sex workers through an online ad and invites them t

in the glass castle, how does the dad convince the daughter there's nothing to be afraid of

“Sometimes there is no next time, no time outs, and no second chances. Sometimes it’s now or never.” what does dis mean n ur own words

Emilio's teacher asks him to draw a triangle that contains a right angle. Two of the three sides of the triangle must have measurements of 5 inches and 7 inches

Question 11 What is the most common gas in Earth's atmosphere? a Carbon Dioxide b Oxygen c Nitrogen d Hydrogen

multiply (x-1)(2x^2+x-2) and write the product in standard formmultiply (x^2+2)(x^2-2x+1) and write the product in standard form

In this excerpt from Brutus’s speech in William Shakespeare’s Julius Caesar, which two words gave a negative connotation?