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
Ksenya-84 [330]
3 years ago
13

After Ricardo received his allowance for the week, he went to the mall with some friends. He spent half of his allowance on a ne

w paperback book. Then he bought himself a snack for $1.25. When he arrived home, he had $5.00 left. How much was his allowance?
Mathematics
2 answers:
ad-work [718]3 years ago
6 0
Lets work backwards, he had $5 after it all, and spent $1.25 on a snack, so we add that to the remainder, which is $6.25. then he spent half of that on whatever stuff he likes, so add $6.25 and $6.25, which is $12.50
DerKrebs [107]3 years ago
3 0

Answer:

$12.50

Step-by-step explanation:

We have to find value of his allowance

Let Ricardo received allowance =x

He spent his allowance on anew paperback book=\frac{x}{2}

He spent money on snacks=$1.25

He had money left=$5.00

According to question

\frac{x}{2}+1.25+5=x

6.25=x-\frac{x}{2}

6.25=\frac{2x-x}{2}

\frac{x}{2}=6.25

x=6.25\times 2

x=12.50

Hence, Ricardo received his allowance for the week =$12.50

You might be interested in
ABCD is a trapezium with AB= x cm, DC=( x+ 4 )cm and the distance between the parallel sides AB and DC is 1/2 x cm
horsena [70]

We know that the smaller base is x cm, the greater base is x+4 cm, and that the height is x/2 cm.

Since the area of a trapezium is given by

A=\dfrac{(b+B)h}{2}

If we plug the expressions we have

A=\dfrac{(x+(x+4))\frac{x}{2}}{2}=\dfrac{(2x+4)x}{4}=\dfrac{2x^2+4x}{4}

If this must equal 84, we can solve for x as follows: start with

\dfrac{2x^2+4x}{4}=84

Multiply both sides by 4:

2x^2+4x=336

Subtract 336 from both sides:

2x^2+4x-336=0

We can divide both sides by 2 to make computation simpler:

x^2+2x-168=0

Use the quadratic formula (or any mean you prefer) to solve this equation and get the solutions

x_1=-14,\quad x_2=12

We can't accept the negative solution, because it would imply

AB=-14,\quad CD=-10

and we can't have negative side lengths. So, the answer is 12.

4 0
3 years ago
The radius of a semicircle is 2 feet. What is the semicircle's diameter?
fomenos

Answer:

11/7 feet

Step-by-step explanation:

Perimeter of a circle = pi

Semicircle would be 1/2 of pi

1/2 × 22/7 × 1

You must divide by one to get the value of 1/2

11/7 is the answer

8 0
3 years ago
A rectangle has a perimeter of 84 miles and a height of 26 miles .what is the length of the base?
ExtremeBDS [4]

Answer:

16 miles

Step-by-step explanation:

The height is 26 miles. Multiply that by 2 which gets 52 and then subtract that from 84. That gives you 32 which means the sum of the lengths is 32/2 which is 16 miles

6 0
3 years ago
Determine whether each equation is true or false.
Firlakuza [10]

Answer:

1=false 2= false and 3= false

Step-by-step explanation:

5 0
3 years ago
7. Krista wrote a list of factors and a list
Hatshy [7]

Answer:

3:12, 5:50, 7:14, 11:22

Step-by-step explanation:

All these numbers are multiples of each other. They are also divisible by each other. 12 is divisible by 3, 50 is divisible by 5, 14 is divisible by 7, and 22 is divisible by 11.

Hope this helps.

6 0
3 years ago
Other questions:
  • Leonardo ate a 3/5 of cheeseburger and an entire salad for dinner. The salad contained 70 calories and the entire meal contained
    12·2 answers
  • Height 6 in.
    7·1 answer
  • Neil started a stamp collection with 12 stamps. Every week, he adds 4 more stamps to the collection. Which function f represents
    12·2 answers
  • You asked your classmates to name their favorite type of music. You found that 12 students like rock, 8 like rap, 6 like R&B
    14·1 answer
  • Expression that have an rational product?
    11·1 answer
  • In the House of Commons, citizens elect their members. Of the 800 members, 530 are from England, 120 are from Wales, 100 are fro
    5·2 answers
  • What is the purpose of tax-differed retirement accounts
    11·1 answer
  • A Fair Isaac Corporation (FICO) score is used by credit agencies (such as mortgage companies and banks) to assess the creditwort
    9·1 answer
  • Write the standard form of an equation with p= sqrt 3, phi= 150 degrees. Please explain.
    13·1 answer
  • What is the plan for the set of stacked cubes?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!