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natita [175]
3 years ago
6

lina went to the playground. she played on the swings for 45 minutes and went on the slide 15 minutes. it was 1:15 p.m. when lin

a left the playground. what time was it when she arrived at the playground?
Mathematics
2 answers:
Aleksandr [31]3 years ago
8 0
The answer to this problem is 12:15
stiv31 [10]3 years ago
8 0
She arrived at 12.05pm
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32 divided by 4x [16x1/2]-2
tresset_1 [31]
64x x [x] -2

Steps
1. Cancel out the greatest common factor

2. Calculate the absolute value

3. Calculate the quotient

4. Calculate the product

5. And then you get your solution 64x x [x] -2
5 0
2 years ago
You have an above ground pool that is 20 feet in diameter. One bag of sand does three square feet. How many bags of sand do you
r-ruslan [8.4K]

Answer:    Number of sand bags are 105

Step-by-step explanation:

Alright, lets get started.

The diameter of pool is given as : 20 \ \text{feet}

The radius of pool will be : r=\frac{20}{2}=10

So the area of the pool will be:

Area = \pi r^2

Area = \pi *10^2

Area = 100 \pi

Area = 314.16

3 square feet is covered by 1 sand bag, so

314.16 square feet will be covered by : \frac{314.16}{3}

So, no of sand bag = 104.7

Rounding off to nearest number

Number of sand bags are 105  :   Answer

Hope it will help :)

8 0
4 years ago
Spring flowering bulbs are on sale at austin's garden shop. Travis and sydney want to buy equal amounts of all four kinds. What
zysi [14]

Answer:

60

Step-by-step explanation:

The problem will be solved by looking for the least common multiple (LCM) of the amounts of all four kinds since they want equal amounts of each.

LCM is defined as the smallest positive integer that is divisible by each of the integers (spring flowering bulbs in this case) involved in the operation.

therefore, we are looking for the LCM of the following integers:

Crocus: 6

Tulip: 4

Daffodil: 3

Hyacinth: 5

The first step to calculate the LCM is to factor each integer (to break it up into numbers that can be multiplied together to get the original number) and express them in terms of powers:

Crocus: 6=2*3

Tulip: 4=2*2=2^{2}

Daffodil 3 = 3 (prime numbers only have themselves as factors)

Hyacinth 5=5 (prime numbers only have themselves as factors)

Now, To calculate the LCM we need to multiply all factors we have found ( in this case 2, 3, and 5) but only once and with the maximum power.

LCM=2^{2} *3*5=4*3*5=60

This means the least number of each spring flowering bulbs that they can buy to buy equal amounts is 60.

Now this will cost:

Crocus: \frac{60}{6}*1.65 =10*1.65=16.5

Tulip: \frac{60}{4}*3.50 =15*3.50=52.5

Daffodil: \frac{60}{3}*1.95 =20*1.95=39

Hyacinth: \frac{60}{5}*2.25 =12*2.25=27

5 0
3 years ago
8th grade algebra question. please help :)
MrRa [10]
-2, 0, 2. Hope this helps!
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