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
luda_lava [24]
3 years ago
5

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

Mathematics
1 answer:
Tanya [424]3 years ago
4 0
Let Marc's age be x. If Jeanine is twice as old as Marc, then her age will be 2x. If their ages added together are 24, then you can create the following equation:

2x + x = 24
3x = 24
x = 8

Remember that x is Marc's age. So if Marc is 8, and Jeanine is twice as old, she will be 16. 
You might be interested in
30% of ________is $75?
Helga [31]
The answer to this is 250.
4 0
3 years ago
 Divide 1 hour in the ratio 1 : 9 : 10
olganol [36]

Answer:

3 minutes; 27 minutes; 30 minutes

Step-by-step explanation:

Let the common multiplier of the given ratios be x. So, the ratios 1: 9 : 10 will become x, 9x and 10x respectively.

Therefore,

x + 9x + 10x = 1 \: hour \\  \\ 20x = 60 \: minutes \\  \\ x =  \frac{60 \: minutes}{3}   \\  \\ x = 3 \: minutes \\  \\ 9x = 9 \times 3 = 27 \: minutes \\  \\ 10x =  10 \times 3 = 30 \: minutes

Thus, 1 hour in the ratio 1 : 9 : 10 can be divided as:

3 minutes; 27 minutes; 30 minutes

5 0
2 years ago
How were the numbers 1 10 100 and 1000 written by romans?
Arturiano [62]
1 --  I
10 -- X
100 -- C
1000 -- M 
8 0
3 years ago
A​ salesperson's commission rate is 5 ​%. What is the commission from the sale of 32,000 worth of​ furnaces? Use pencil and pape
Len [333]

Answer: Answer:

Its sad that you have to uses this app to get the right answers.

Have you ever stopped to ponder if someone is trying to scam/Catfish you?

Also I bet that you haven't even tried reading this question.

I know that you can do it yourself!

If not then, Sorry to hear.

Also

The answer is:

Do it yourself, Because if you try..You'll have a better answer then I ever could. Or anyone TBH

6 0
2 years ago
(3cosx-4sinx) + (3sinx+4cosx) = 5
Ksenya-84 [330]
(3 cos x-4 sin x)+(3sin x+4 cos x)=5
(3cos x+4cos x)+(-4sin x+3 sin x)=5
7 cos x-sin x=5
7cos x=5+sin x
(7 cos x)²=(5+sinx)²
49 cos²x=25+10 sinx+sin²x
49(1-sin²x)=25+10 sinx+sin²x
49-49sin²x=25+10sinx+sin²x
50 sin² x+10sinx-24=0

Sin x=[-10⁺₋√(100+4800)]/100=(-10⁺₋70)/100
We have two possible solutions:
sinx =(-10-70)/100=-0.8
x=sin⁻¹ (-0.8)=-53.13º      (360º-53.13º=306.87)

sinx=(-10+70)/100=0.6
x=sin⁻¹ 0.6=36.87º

The solutions when  0≤x≤360º are:  36.87º and 306.87º.


3 0
2 years ago
Other questions:
  • Which of the following uses the distributive property correctly? 9(m – 2) = 9(m) – 9(2) 9(m – 2) = 9(m) – 2 9(m – 2) = 9 – 9(2)
    15·1 answer
  • I got 3 angles and they make 180° one of them is 6x - 10°. Another one is 4x + 6°. And the last one is 7x + 14°.
    9·1 answer
  • Write a linear function f with the given values.<br><br> F(0)=2 , f(2)=4
    9·2 answers
  • What is the radius of a circle that has a diameter of 38
    12·2 answers
  • Please help with this problem
    6·1 answer
  • Write the equation of the line that passes through the points (-1,3) and (-6, -7).
    9·1 answer
  • The figure below shows a quadrilateral ABCD with diagonal BD bisecting angle ADC:
    5·1 answer
  • Uma pessoa fez uma compra no valor de 104.592,00 eles pagaram este valor em 48 parcelas mensais sem juros qual seria o valor de
    12·1 answer
  • A map is made of a park. The scale from the park to the map is 36 mi to 9 cm. The length of Great Oaks Trail is 3 cm on this map
    8·2 answers
  • Help me w/this quick plz :)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!