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
aleksley [76]
3 years ago
13

Mr.Jackson is saving money to go on a trip. Last month,he saved $21 dolloars each week for 4 weeks. This month he saved 3 times

as much money as he saved last month. How much money did mr.Jackson save this month ?
Mathematics
1 answer:
Anit [1.1K]3 years ago
7 0

Answer:

The total amount he saved this month=84×3=$252

Step-by-step explanation:

Last month he saved 21 dollars each week for 4 weeks, to calculate the total amount he saved for the for weeks, we can express this as;

Total amount=Amount he saved per week×Number of weeks  

Where;

Amount he saved per week =$21

Number of weeks=4 weeks,

Replacing;

Total amount=21×4=$84

This month he saved 3 times as much money as he saved last month, this can be expressed as;

The total amount he saved this month=Amount saved last month×3

Where; Amount saved last month=$84

Replacing;

The total amount he saved this month=84×3=$252

You might be interested in
between 9 p.m. and 6:36 a.m.​, the water level in a swimming pool decreased by 6/25. assuming that the water level decreased at
Licemer1 [7]

Answer:

The hourly drop between the two times is 1/40

Step-by-step explanation:

Firstly, we need to find the difference in time between 9 pm and 6:36 am

That would be 9 hours and 36 minutes

It would be needed to convert 36 minutes to hours

Mathematically, 60 minutes = 1 hour

So 36 minutes = (36 * 1)/60 = 36/60 = 0.6

So the difference between the two time is simple 9.6 hours

So the total drop during the time is given by 6/25

So the hourly drop will be 6/25 divided by 9.6

= 6/25 * 1/9.6 = 6/240 = 1/40

8 0
3 years ago
LEon made 4 liters of lemonade for the party, but it was too strong, it was 14% lemon juice. How much 8% lemonade should he add
dsp73
<span>Item       Number of Liters          Percentage of LemoneA                    4        14%B                    x         8%Result           4+x            10%
For a mixture of solutions to form a resulting solution, we know
V1 * N1 + v2 * N2 = V * N
where, V1 = Volume of mixture of 1 N1 = Concentration of mixture 1V2 = Volume of mixture of 2 N2 = Concentration of mixture 2
V = volume of mixture N = Concentration of mixture
So solving we get:
(4+x)*10 = 4*14 + x * 8or, 10x-8x = 4*14-4*10or, 2x = 16or x = 8
so 8 litres of the solution B must be added to the solution<span>
</span></span>
5 0
3 years ago
Select the two expressions that equivalent to 4 + w + 12w
Korvikt [17]

Answer:

A and C :)

Have an amazing day!!

Please rate and mark brainliest!!

4 0
2 years ago
Crawling Crayfish!
boyakko [2]

Answer: Crayfish, 25 s

Step-by-step explanation:

Given

The length of race is 60 cm

Flicker gets a 10 cm head-start

Cray fish covers 6 cm in 5 s i.e. its speed is

\Rightarrow \dfrac{6}{5}=1.2\ cm/s

Flicker covers 4 cm in 5 s, its speed is

\Rightarrow \dfrac{4}{5}=0.8\ cm/s

Time taken by Cray fish to cover the race is

\Rightarrow t_1=\dfrac{60}{1.2}\\\\\Rightarrow t_1=50\ s

Time taken by flicker to cover race with 10 cm head start

\Rightarrow t_2=\dfrac{60-10}{0.8}\\\\\Rightarrow t_2=62.5\ s

Time taken by crayfish is less. Hence, crayfish wins the race

When they both covers the same distance, they tied momentarily i.e.

\Rightarrow 1.2t=10+0.8t\\\Rightarrow 0.4t=10\\\\\Rightarrow t=\dfrac{10}{0.4}\\\\\Rightarrow t=25\ s

After 25 s, they tied the race.

5 0
3 years ago
II. Using Radians to Measure Arcs and Angles
padilas [110]
Pi radians is 180 degrees.
A
1) 180/3=60
2) 270
3) 45
4) 3240
B
1) 100/180=5/9
3) 30/180=3/18
5) 1/180
C
1) (pi) cm
2) 2pi
4 0
3 years ago
Other questions:
  • The ages of two groups of dance students are shown in the following dot plots: A dot plot shows Age in years on the horizontal a
    14·2 answers
  • FOR THE FUNCTION F(X) =6x - 8 what is f(3)?
    11·2 answers
  • Solve the following equation: 5x - 15 = 50 (1 point)<br> O 13<br> 0-13<br> 0-7<br> Oy
    10·2 answers
  • the length of side AB is twice the length of side AC. Write an expression for the perimeter of the triangle
    10·1 answer
  • Which values for A and B will create infinitely many solutions for this system of equations
    15·1 answer
  • In a particularly sunny month, Solaire's solar panels generated
    13·2 answers
  • You do first to find n in the number sentence 1/6 + 1/3 = n​
    6·1 answer
  • A line passes through the point (-8,3) and had a slope of -3/4. Write an equation in point-slope form for this line
    6·1 answer
  • Divide and simplify 3/4 and 1/2
    7·2 answers
  • Write the exponential equation in logarithmic form.<br><br> e^(-3) ≈ .05
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!