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
WINSTONCH [101]
3 years ago
11

5. Mark's brother is five years older than Mark.

Mathematics
1 answer:
AleksAgata [21]3 years ago
8 0

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!

You might be interested in
What is the formula for finding the area of a circle?
Alika [10]
The formula to find<span> a </span>circle's area<span> (radius)</span>2<span> usually expressed as π ⋅ r 2 where r is the radius of a </span>circle<span>. </span>Area<span> of </span>Circle<span> Concept. The </span>area of a circle<span> is all the space inside a </span>circle's<span> circumference.</span>
4 0
3 years ago
Read 2 more answers
Point E is located at (-2, 2) and point F is located at (4,-6). What is the distance bewtween points E and F?
Hoochie [10]

\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\\\(\stackrel{x_1}{-2}~,~\stackrel{y_1}{2})\qquad(\stackrel{x_2}{4}~,~\stackrel{y_2}{-6})\qquad \qquadd = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}\\\\\\d=\sqrt{[4-(-2)]^2+[-6-2]^2}\implies d=\sqrt{(4+2)^2+(-6-2)^2}\\\\\\d=\sqrt{6^2+(-8)^2}\implies d=\sqrt{100}\implies d=10

4 0
3 years ago
Read 2 more answers
Find an expression for the area enclosed by quadrilateral ABCD below.
Helga [31]
  • ∆ABD is right angled hence area:-

\\ \sf\longmapsto \dfrac{1}{2}bh

\\ \sf\longmapsto \dfrac{1}{2}(4x)(3x)

\\ \sf\longmapsto \dfrac{1}{2}(12x^2)

\\ \sf\longmapsto 6x^2

There is only one option containing 6x^2 i.e Option D.

Hence without calculating further

Option D is correct

6 0
3 years ago
Read 2 more answers
Plz help will give brainliest need this asap
Ber [7]

Answer:

plz help and this is fro khan academy if it helps!

Hold on, our servers are swamped. Wait for your answer to fully load.

Step-by-step explanation:

plz help and this is fro khan academy if it helps!

Hold on, our servers are swamped. Wait for your answer to fully load.

5 0
3 years ago
Help me with this please​
LenKa [72]

Answer: D. 3 x 10^7

Step-by-step explanation: 9.6/3.2=3 and 10^9/10^2 is 9-2=7, so 10^7, so it would be 3 x 10^7.

7 0
3 years ago
Read 2 more answers
Other questions:
  • 58 = –2(m + 4) + m –22 –50 –66 –33
    6·2 answers
  • Is 192 rational , why is it?
    11·1 answer
  • I NEED THIS ANSWER FAST!!!!
    14·1 answer
  • What is the probability of flipping a coin 12 times and getting heads 5 times?
    7·1 answer
  • The table shows the height of different plants in inches. Create a line plot, hover over each number line.Then click and drag up
    13·1 answer
  • Find the unit rate. A 6oz jar of jalapeños cost $2.34
    13·2 answers
  • I need help please ?!!
    15·1 answer
  • Solve 2|x + 2| – 3 ≥ 0 by graphing
    13·1 answer
  • Party Sweets makes baked goods that can be
    15·1 answer
  • Can you match the teacher's comments to the definitions?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!