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
agasfer [191]
3 years ago
14

Antonio has a total of 55 marbles. He has 15 green marbles and 12 red marbles. The rest of the marbles are blue. How many blue m

arbles does he have?
A student solves this problem by writing an equation. Which strategy could help check the student’s answer?
Mathematics
1 answer:
dedylja [7]3 years ago
5 0
Step 1: Create Equation: 12+15+x=55

Step 2: Solve it: you will get x=28

Step 3: You could check it by plugging your answer in.

Hope that helps!!!
You might be interested in
Write a real world scenario that matches the following equation. 15+3h=30 Then solve for the equation
arsen [322]
Bowling costs 15 dollars per person and 3 is amount of money per game it cost to play. If you play 5 games then you pay a total of 30 dollars. 
7 0
2 years ago
Which two points should the line of best fit go through to best represent the data in the scatterplot?​
Ilya [14]

Given :   A graph with points (1, 3), (2, 7), (3, 8), (4, 11), (5, 12), (6, 13).

To find :  From Which two points the line of best fit goes through

Solution:

(3, 8) &  (5, 12) will be two points

as then line  points will be

( 1 ,  4 ) , ( 2, 6) , ( 3 , 8 ) , ( 4, 10) , (5 . 12)  & ( 6 , 14)

(1, 3)   will be below ( 1 ,  4 )

(2 , 7) will be above ( 2 , 6)

( 3 , 8 ) will be on line

(4 , 11 ) will be above ( 4 , 10)

( 5 , 12  ) will be on line

( 6 , 13)  will be below ( 6 ,  14 )

(1, 3)  & ( 6 , 13)  two points are below line

(2 , 7) & (4 , 11 )  two points above line

Hence points are Equally scattered above  & below line

Hence (3, 8) &  (5, 12) will be two points on   line of best fit

Hope it helpss !!

4 0
2 years ago
Read 2 more answers
X -5,-3,4,1,-1,-2,0,2,3,-4
Sergio039 [100]

Answer:

I dont know im really sorry

8 0
3 years ago
Niklas takes a dose of 252525 micrograms (\text{mcg})(mcg)left parenthesis, m, c, g, right parenthesis of a certain supplement e
11Alexandr11 [23.1K]

Niklas takes a dose of 25 micrograms of a certain supplement each day. The supplement has a half life of 4 hours, meaning that 1/64 of the supplement remains in the body after each day. How much of the supplement is in Niklas's body immediately after the 12th dose? Round your final answer to the nearest hundredth.

Answer:

The amount of the supplement in Niklas body immediately after the 12th dose is 430 micrograms to the nearest hundreth

Step-by-step explanation:

Half life is the time required for an element to decay into half of its initial size.

Given that :

The supplement has a half life of 4 hours, this implies that  it decay to half of its size every 4 hours.

∴ there are 6 stages of division in a day.

i.e

\dfrac{1}{2}*\dfrac{1}{2}*\dfrac{1}{2}*\dfrac{1}{2}*\dfrac{1}{2}*\dfrac{1}{2} =\dfrac{1}{64}

The amount of the supplement in Niklas body after the first dose (first day) can be calculated as:

=  \dfrac{1}{64} × 25

= 0.390625 micrograms

It is said that he used the supplement daily for 12 days (12th dose),

As such ; we can estimate the amount of the supplement that is in his body immediately after the 12th dose; which is calculated as:

amount in his body per day × number of period for complete decay

= 0.390625 × 11

= 4.296875

≅4.30 micrograms

= 430 micrograms to the nearest hundreth

The amount of the supplement in Niklas body immediately after the 12th dose is 430 micrograms to the nearest hundreth

3 0
2 years ago
What the answer 12x+90-2x=180
morpeh [17]

Answer:

x=9

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • A cylinder has an elliptical base with major semiaxis length of 6 cm and minor semiaxis length of 4 cm. its altitude is 7.5 cm.
    9·2 answers
  • 3 ways unit rate used in real world
    12·2 answers
  • Suppose that a cyclist began a 374 mi ride across a state at the western edge of the​ state, at the same time that a car traveli
    10·1 answer
  • 4. Mr. Ledic works in a coffee shop approximately nine miles from her apartment. She
    6·1 answer
  • The area of the base of a cylinder is 45 square inches and it's height is 10 inches. A cone has the same are for its base and th
    15·1 answer
  • How do you write y-5 =3(x-4) in slope-intercept form?
    11·2 answers
  • 6.The perimeter of a rectangle whose length is 7.5cm and breadth 3.75cm​
    14·2 answers
  • Find the perimeter of the irregular shape
    15·1 answer
  • Heyyy please help FACTORISE (x-x)​
    5·1 answer
  • I need help with 1 and 2
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!