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3 years ago

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Christina's ice cream parlor sold 60 vanilla cones on the first day of summer. If the goal is to increase the number of vanilla

cones
sold each day by 4. how many will be sold 20 days later?
The solution is

2 answers:

nlexa [21]3 years ago

7 0

Answer:

formula: 60x4(to the power of 20)

Elena L [17]3 years ago

6 0

1. 60x4
2. Times that by the exponent 20
3. There you go

Hope this helps

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-9/ 10 as a decimal number.

aev [14]

Answer:

-0.9

Step-by-step explanation:

-9/ 10 = -0.9

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3 years ago

Read 2 more answers

Rashid is paid by the hour. He earned $50 for a 4-hour workday. How much does he earn for a 5 1/4-hour workday?

xeze [42]

ANSWER: $65.63

$50 divided by 4 hours = $12.50 per hour
1/4 can also be written as the fraction 0.25
So 5 1/4 hours is the same as 5.25 hours
$12.50 per hour x 5.25 hours = $65.625 rounded to the nearest cent = $65.63

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4 years ago

Find 2 numbers a and b such that (a-b)^2 < (a+b)(a-b)< (a+b)^2 Find two numbes a and b such that this is not true

Svet_ta [14]

Suppose for the moment that the inequality holds for all $a,b$ :

$(a-b)^2$

Expanding everything gives

$a^2-2ab+b^2$

$\implies-ab$

In particular, the inequality says that $-ab$ for any choice of $a,b$ . But if $a$ and $b>0$ , then $-ab>0$ while $ab$ .

So one possible choice of $a,b$ could be $a=-1$ and $b=1$ . Then we get

$(-1-1)^2=4$

$(-1+1)(-1-1)=2$

$(-1+1)^2=0$

but clearly it's not true that $4$ .

8 0

3 years ago

Will is twice as old as Jill. Three years ago, Jill's age was two fifths of Will's age then. How old is each now?

dimulka [17.4K]

"Will is twice as old as Jill."

   Jill's age . . . . .   J
   Will's age . . . . 2J .

"Three years ago . . .

   Jill's age then . . . . .   J - 3
   Will's age then . . . . 2J - 3

". . . Jill's age then was 2/5 of Will's age then."

   J - 3 = (2/5) (2J - 3)
Multiply
each side by 5 : 5J - 15 = 2 (2J - 3)

Divide
each side by 2 :    2.5 J - 7.5 = 2J - 3

Subtract 2J
from each side: 0.5 J - 7.5 =    -3

Add 7.5
to each side: 0.5 J = 4.5

Multiply
each side by 2 :    J    = 9

Jill is 9 y.o. now.
Will is 18 y.o. now.

4 0

3 years ago

Help fast please....

IrinaVladis [17]

The second one is the answer

7 0

2 years ago