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
AlekseyPX
2 years ago
15

Jeanine is twice as old as her brother Marc. If the sum of their ages is 24, how old is Jeanine

Mathematics
2 answers:
Vesna [10]2 years ago
5 0
Her brother is 8: 8 x 2 is 16, and 16 + 8= 24.
docker41 [41]2 years ago
5 0
First make an equation system for the problem
An equation for "<span>Jeanine is twice as old as her brother Marc" is
</span>⇒ j = 2m
An equation for "<span>the sum of their ages is 24" is
</span>⇒ j + m = 24
<span>
Second solve the equations with subtitution method.
Subtitute j with 2m in the second equation
j + m = 24
2m + m = 24
3m = 24
m = 24/3
 m = 8
Marc is 8 years old

Find Jeanine's age by subtitute m with 8 in the first equation
j = 2m
j = 2(8)
j = 16

Jeanine is 16 years old
</span>
You might be interested in
Zohar is using scissors to cut a rectangle with a length of 5x – 2 and a width of 3x + 1 out of a larger piece of paper. The per
Fantom [35]
The total distance she will need to cut is 62 centimeters. Work shown: 1) simplify original equation- 10x-4+6x+2( 40-4+24+2) 2) solve equation: 36+24+2 3) continue to solve: 38+24= 62. Now you have your answer!!
4 0
3 years ago
Read 2 more answers
A right cone has a slant height of 6 and a radius of 4. What is its surface
gladu [14]
The answer is A! Hope you have a nice day <3
6 0
2 years ago
Part A
Diano4ka-milaya [45]

Answer:

24 Blue beads

16 Green beads

Step-by-step explanation:

.60×40=24

.40 ×40=16

Whenever you get a percentage move the decimal two places left and multiply by the total number.

example: 2% of 20 is 2.00 of 20, so move the decimal 2 spots to the left. .002×20=.04

5 0
2 years ago
Read 2 more answers
I need help with this! Quick ASAP?
sp2606 [1]

Answer:

a) F

b) B, E, D

Step-by-step explanation:

a) The segment with the greatest gradient has the largest change in y-values per unit change in x-values

From the given option, the rate of change of the <em>y </em>to the<em> </em>x-values of B = the gradient = (4 units)/(2 units) = 2

The gradient of F = (-3units)/(1 unit) = -3

The gradient of A = 4/4 = 1

The gradient of C = -2/5

The gradient of D = 2/6 = 1/3

The gradient of E = 3/4

The segment with the greatest gradient is F

b) The steepest segment has the higher gradient

From their calculated we have;

The gradient of segment B = 2 therefore, B is steeper than E that has a gradient of 3/4, and E is steeper than D, as the gradient of D = 1/3

Therefore, we have;

B, E, D.

6 0
3 years ago
SOMEONE PUT AN ANSWER SO IT DOESNT GET DELETED!!!
Nadusha1986 [10]

Answer:

The height of the cylinder is 4x units.

Step-by-step explanation:

volume of a cylinder = nr^2h

n = 22/7

r = radius = x/2

Let illustrate with an example. If the diameter of a cylinder is 6 and the volume is 6^3 = 216. The radius = 6/2 = 3

n3^2 x h = 216

h = 216/9 = 24

so the height is 4 times the diameter

Area of the base = nr^2

1/2^2 x x = 1/4 pi x^2

3 0
2 years ago
Other questions:
  • Simplify the expression. (8x + 14) + (9x - 5)
    8·1 answer
  • ____________ is the amount of a $3000.00 annuity due at 12 percent compounded semiannually for 3 years.
    15·1 answer
  • with Judy jogging north and Jackie jogging west (on straight roads). When Jackie is 1 mile farther fro m the intersection than J
    9·1 answer
  • 5 - 3/13.<br> A. 1 2/3<br> B. 2 2/3<br> C. 3 1/3<br> D. 2 1/3
    11·1 answer
  • 1) A speed walker covered 4 1/2 mi in 3/4 hour. How far will he walk with the same pace in 2 hours? 3 hours? 3.5 hours?
    15·1 answer
  • From the first step of the construction, drawing the arcs on both rays establishes that AB is
    6·1 answer
  • Select all equations that have graphs with the same y-intercept.
    15·2 answers
  • Over summer, a dam’s water volume reduces from 20 megalitres to 4 megalitres. What fraction of the water in the dam has been los
    8·1 answer
  • Katie Haddad earns $394 per week. She is married and
    5·1 answer
  • Use the graph of the function y = -x² + 2x + 8 to
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!