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lesantik [10]
3 years ago
5

There are 8 boys and 7 girls and 195 in All

Mathematics
1 answer:
valkas [14]3 years ago
3 0
Then there are 210 people since 8+7+195 = 210
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Adam is going to make concrete. He is going to use 180 kg of cement. 375 kg of sand. 1090 kg of stone. Cement, sand and stone ar
hichkok12 [17]

Answer:

2 bags of stone

Step-by-step explanation:

Lets do one at a time.  Cement first.

he needs 180 kg of cement.

1 bag is 25 kg, so in total he needs 8 because 7 would get him 175, so he would need just a little bit more.  And I assume you can't but part of a bag he needs to but one full more bag.  If he already has 8 then he doesn't need any more.

Needs 375 kg of sand

Each bag has 22.5 kg inside

he needs 17 bags total of sand because 16 would only give 360

Since he already has 19 bags he has 427.5 kg of sand so he doesn't need any more.

Needs 1090 kg of stone

Each bag has 50 kg of stone

He needs 22 bags since 21 would just give him 1050 kg

He has 20 so he needs two more bags

So in total he needs two bags of stone.  Let me know if there was anything you didn't understand.  

5 0
4 years ago
Arrange the numbers in the ascending order: 3/4,1/12,9/16,7/24
OLEGan [10]
Ascending means going up
First change into decimals
3/4=0.75
1/12=0.083
9/16=0.5625
7/24=0.291666…..

Start from smallest to largest number
0.291666…..,0.5625,0.75,0.083

Find their fractions
7/24,9/16,3/4,1/12

Answer:7/24,9/16,3/4,1/12
4 0
1 year ago
Antony purchases his Play Station 5 for $1,099 from Best Buy near the Parks Mall. The sales tax is 8.25%. How much does he pay f
hram777 [196]

Answer: $90.67

Step-by-step explanation:

Sales taxes are paid per good purchased to the IRS and are more often than not, collected at the point of sale by the seller.

The sales tax paid on the PlayStation can be calculated by the formula:

= Price of purchase * Sales tax percentage

= 1,099 * 8.25%

= $90.67

6 0
3 years ago
Find the distance from the origin to the graph of 6x+3y+2=0
AURORKA [14]
Slope=-2
Y-intercept—2/3
5 0
3 years ago
A bag had 7 orange rocks , 6 green rock , 1 white rock ,7 black rocks , and 2 yellow you randomly pull a rock from the bag ,keep
daser333 [38]

Answer:

Probability = \frac{7}{253}

Step-by-step explanation:

Given

Orange = 7

Green = 6

White = 1

Black = 7

Yellow = 2

Required

Probability of selecting a yellow then orange rock

From the question, we understand that the probability is that of without replacement.

Since the yellow, is first picked.

We need to determine the probability of picking a yellow rock, first.

P(Yellow) = \frac{n(Yellow)}{Total}

P(Yellow) = \frac{2}{7 + 6 + 1 + 7 + 2}

P(Yellow) = \frac{2}{23}

The rock has reduced by 1;

Next is to determine the probability of picking an orange rock

P(Orange) = \frac{n(Orange)}{Total - 1}

P(Orange) = \frac{7}{7 + 6 + 1 + 7 + 2- 1}

P(Orange) = \frac{7}{22}

The required probability is calculated as thus:

Probability = P(Yellow) * P(Orange)

Probability = \frac{2}{23} * \frac{7}{22}

Probability = \frac{14}{506}

Probability = \frac{7}{253}

4 0
3 years ago
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