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
stepan [7]
3 years ago
10

Robert is 10 years older than her brother. In 2 years, Robert will be three times as old as his brother. How old are they now?

Mathematics
1 answer:
valentina_108 [34]3 years ago
6 0
Robert is 13 and his brother is 3 y.o.
X... brother’s age
X+10... Robert’s age
X+10+2... Robert’s age in 2 years
X+2...Brother’s age in 2 years
X+10+2/x+2=3
X=3
X+10=13
You might be interested in
What is the value of the expression <br> 7⋅(−5)⋅4?
Masja [62]
Multiply each number. Remember that when multiplying a negative and positive number, the outcome will be negative

7 x -5 = -35
-35 x 4 = -140

-140 is your answer

hope this helps
4 0
3 years ago
Read 2 more answers
A rectangular magazine cover is photocopied by using a scale factor of One-third. The length of the photocopy of the magazine co
seraphim [82]

Answer: "reduced by a factor of One-third."

Step-by-step explanation:

Suppose that the original magazine has a length L and a width W.

If it is photocopied using a scale factor of K, then the measures of the photocopy will be:

length = K*L

Width = K*W

In this case, the scale factor is K = 1/3, then the measures of the photocopy will be:

length = (1/3)*L = L/3

Width = (1/3)*W = W/3

For usual notation:

When k > 1, we have an enlargement by a factor k

when 0 < k < 1, we have a reduction by a factor k

in this case, k = 1/3, then:

We have a reduction by a factor of 1/3

The correct option is:

"reduced by a factor of One-third."

7 0
3 years ago
Read 2 more answers
Find a simplified expression to represent the area of the triangle. The area formula for a triangle is bh, where b is the base a
snow_tiger [21]

Answer:4x^2+22x-12

Step-by-step explanation:

height=(2x+12)

base=(4x-2)

Area of =(base x height)/2

Area of =((4x-2)(2x+12))/2

Area of =(8x^2+48x-4x-24)/2

Area of =(8x^2+44x-24)/2

Area of =4x^2+22x-12

6 0
3 years ago
Read 2 more answers
Which ratio shown below is NOT equivalent to − 15 23
Talja [164]

Answer:

what is the answer below

Step-by-step explanation:

4 0
3 years ago
write an equation of the line in Slope-intercept form that has a slope of -2/3 and has a Y intercept of -4
N76 [4]

y = -2/3x - 4

simply plug into y = mx+b where m is slope and b is y intercept

7 0
3 years ago
Other questions:
  • Can you help me with these 3 questions? I was unable to find an answer and I am worried I will fail... ;(
    5·1 answer
  • An equilateral triangle has a length of 18 feet, determine the length of the triangle
    5·2 answers
  • What is 5(3x+2)-2(4x-1)
    13·1 answer
  • A parabola has its focus at (1,2) and its directrix is y=-2. the equation of this parabola could be
    11·1 answer
  • 1/4 x 1/4 x 1/4 x 1/4
    7·1 answer
  • A catapult’s lever holds a cannonball. The lever is attached to a tightly held rope. When the rope is released, the lever spring
    10·1 answer
  • Need help asap! please.
    5·1 answer
  • Please help. I’m stuck
    7·1 answer
  • Solve the equation for y <br> 1/2y - 21/4 = -35/4
    10·1 answer
  • I’ll mark brainliest!! Please help:)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!