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Ksenya-84 [330]
2 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]2 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]2 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

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BartSMP [9]

The equation for time is URM:

time =  \frac{distance}{speed \: (rate)}

t(s) =  \frac{4s {}^{3}  - 6s {}^{2}  + 4s + 14}{s + 1}  =  \frac{2(s + 1)(2s {}^{2} - 5s + 7) }{s + 1}  \\  t(s) = 2(2s {}^{2}  - 5s + 7) \\ t(s) = 4s {}^{2}  - 10s + 14

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10 months ago
If f(x)=2x^3-x+c and f(2)=10 then what's the value of c?
Goshia [24]

Answer:

c = -4

Step-by-step explanation:

If f(x) = 2x^3 - x + c and f(2) = 10, plug in 2 for the x values in the function and make the function output 10.

10 = 2(2^3) - 2 + c    Now, we only have to deal with one variable, that is c.

10 = 2(8) - 2 + c

10 = 16 - 2 + c

10 = 14 + c

-4 = c    After simplifying, we get that c is -4.

To check this, plug in 2 for x, and -4 for c in the function. If the function produces 10 as the result, the halleluja!

f(2) = 2(2^3) - 2 - 4

f(2) = 2(8) - 2 - 4

f(2) = 16 - 2 - 4

f(2) = 10

7 0
2 years ago
Read 2 more answers
Round 1,289 to the nearest 100
anygoal [31]
1300
is the correct answer

8 0
3 years ago
Read 2 more answers
PLEASE HELP!! WILL MARK BRAINLIEST FOR CORRECT ANSWER!!!
slega [8]

Answer:

Option 2, 3, 4

Step-by-step explanation:

It cannot be the 1st option because a linear function doesn't have an x^{2} and adding an x to an x will not make it squared. ax + by = c is the linear equation.

It can be the 2nd option because the quadratic formula is  f(x) = ax^{2} + bx + c and the middle portion could cancel when adding 2 together.

It can be option 3, because f(x) = ax^{2} + bx + c plus ax + by = c could give you the resulting function f(x) = -3x^{2} +5

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8 0
3 years ago
A local hamburger shop sold a combined total of 773 hamburgers and cheeseburgers on Sunday. There were 73 more cheeseburgers sol
aliya0001 [1]

Answer:  There were 350 hamburgers sold.

Step-by-step explanation:

x + (x +73)= 773  where x is the number of hamburgers sold and (x+ 73) is the number of cheese burgers sold.

x + (x+ 73)=773

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8 0
3 years ago
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