sela put 6 times as many coins now as she had 4 months ago. if sela has 240 coins now, how many did she have 4 months ago

Answers

Answer 1

Answer: Sela had 40 coins 4 months ago because 240 divided by six is 40.

Answer 2

Answer: she put 24 coins 4 months ago because 6 times 4 is 24.

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Seven less than a number divided by three is five
-10= -b/4 What Does "b" Equal?
Between 2000 and 2014, the number of twin births in a certain country increased by 15%, to approximately 133975. About how many twin births were there in 2000?
Dan is thinking of a number. The quotient of thisnumber and 1.8 is31.5. Find Dan's number.

What’s the volume of a cone with a height of 5 cm and a diameter of 2 cm

Answers

Answer:

5.24cm^3

Step-by-step explanation:

The formula for the volume of a cone is 1/3TTr^2h

1/3*22/7*1*1*5=110/21

=5.238 round up to 5.24

35% of what number is 17

Answers

Let the no be "a"
35/100*a = 17
35a=1700
a=1700/35=48.57(approx)

Let the number be x
35% of x= 17
(35/100) * x=17
(7/20)x = 17
7x = 17*20
x= 340/7
x = 48.57

A withdrawal of $50 is negative or positive?

Answers

a withdrawal of $50 is negative because you are taking money out of your account and your money in your account is getting less than what it was before.

its Negative because your taking away money.

You have 1 case of soap bars and there are 150 bars in a case. You use 300 bars of soap per day. How many cases do you need to order to have enough for 7 days?*

Answers

Answer:
14 cases

Explanation:
First, we will need to find the number of cases needed per day:
We know that one case includes 150 bars and that the daily consumption is 300 bars. To know the number of cases needed daily, we will use cross multiplication as follows:
1 case .............> 150 bars
?? cases .........> 300 bars
number of cases needed daily = $(300*1)/(150)$
number of cases needed daily = 2 cases

Then, we will get the number of cases needed weekly (7 days):
We know that 2 cases are needed daily. To know the number of cases needed weekly (7 days), we will simply use cross multiplication as follows:
1 day .............> 2 cases
7 days ...........> ?? cases
number of cases needed weekly = $(7*2)/(1)$
number of cases needed weekly = 14 cases

Hope this helps :)

There are 22 students on natalies class. new reading books cost $7 each. Natalies class raised $50 washing cars. If there are 2 teachers in nautiliesclass, write and evaluate an expression to show how much more each teacher will have to pay to buy the new book

Answers

22*7 = 50 + 2x (22*7 is the total cost for all students, and the other side needs to match that cost)

evaluate:
22*7 = 50 + 2x
154 = 50 + 2x
104 = 2x
52 = x

Each teacher will have to pay $52.

Since 22 multiplied by 7 is equal to 154$ and the class has already raised 50$ you are still left with 104$ to pay . Sice there are 2 teachers you would divide 104$ by 2 and end up with 52$ .... Each teacher would have to pay 54$

A rectangular garden is 6 feet long and 4 feet wide. A second rectangular garden has dimensions that are double the dimensions of the first garden. What is the percent of change in perimeter from the first garden to the second garden?

Answers

double dimentions
perimiter

P=2(L+W)

if we have
L=6
W=4
P=2(6+4)
P=2(10)
P=20
original is 20
if both are doubled

6*2=12
4*2=8
P=2(12+8)
P=2(20)
P=40

from original to new is
from 20 to 40
what is percent change?
find chnage
new-original=change
40-20=20
percent change=change/original
20/20=1=100%

answer is 100%

__________ _____________________
| 6 feet | | 6 feet | 6 feet |
| | | | | 4 feet
|_________ | |__________|__________|
| | |
| | | 4 feet
|__________|__________|

the figure shows that the second garden has a circumference twice . We must , however, prove.
Denote the sides of the first garden - a rectangle letters a and b
circuit garden
C₁ = 2a + 2b = 2*(a+b)
The sides of the second garden also denoted with the letters a and b . We calculate the circuit
C₂ = 2*2a + 2*2b = 4a + 4b = 4*(a+b)

$k = ( C_(2) )/( C_(1) ) = (4*(a+b))/(2*(a+b)) = (2*(a+b))/(1) = 2*(a+b)$

2 = 2*100%=200%
200% -100% = 100%

Answer : The ratio of the second garden to the first ( ratio ) is 2 . Circuit increased by 100 %

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There is 5/6 of an apple pie left from dinner. Tomorrow, victor plans to eat 1/6 of the pie that was left. How much of the whole pie will be left after he eats tomorrow?