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antiseptic1488 [7]
3 years ago
5

If the perimeter of a square is 80cm, the its area is​

Mathematics
1 answer:
Leno4ka [110]3 years ago
6 0

Answer:

10 by 8

Step-by-step explanation:

The perimater is 80 so number are added. The area would be a square 10 by 8 if you multiply 10 by 8 it will give you 80.

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I need a answer for this
aleksandrvk [35]

Answer:

148 i think i’m not sure

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
1/3(x+6)=1/2(x-3) I need answer and explanation thanks
____ [38]

Answer:

x = 21

Step-by-step explanation:

1/3(x + 6) = 1/2(x - 3)

(3)1/3(x + 6) = (3) 1/2(x - 3) - multiply both sides by 3 to get rid of the 1/3

x + 6 = 3/2(x - 3)

x + 6 = 3/2 (-9/2) - i distributed the 3/2 into the parenthesis

x + 6 (2) = 3/2 (-9/2) (2) - multiply each side by 2 to get rid of the fractions

2x + 12 = 3x - 9

2x - 3x = -12 -9 - bring the x to one side

-x = -21

-x/-1 = -21/-x

x = 21

5 0
3 years ago
In order to study whether IQ level is related to birth order, data were collected from a sample of 540 students on their birth o
Artist 52 [7]

Answer:

correct answer is e. Side-by-side boxplots

Step-by-step explanation:

given data

IQ test

sample = 540 students

solution

here Side-by-side boxplots that is apply it to the data set with 1 quantitative and 1  categorical variable

Side-by-side boxplots is also very useful in the comparing fundamental information for 2 data set

eg median value and range of value they cover from data

and

Side-by-side boxplots also provide target summary and it analysis the data

so here correct answer is e. Side-by-side boxplots

3 0
3 years ago
The value of y varies directly with x. If x = 7, then y = -40. What is the value of x when y = 51?
andrew-mc [135]

Introduce a constant,

let it be (k)

Y=KX

-40 = K(7)

K= -5.7

Then,

Y =KX

51= -5.7(X)

X = -8.95~-9

5 0
3 years ago
A swimming pool has four faucets. the first can fill the entire pool with water in two days, the second - in three days, the thi
Olenka [21]
Time taken to fill the pool by faucet:
A-2 days
B-3 days
C-4 days
D-6 hours=6/24=1/4 days
Thus the time taken for the 4 faucets working together to fill the pool will be the GCD of the time taken by the 4, which will be:
GCD(2,3,4,0.25)
=1
=1 day

Answer: 1 day or 24 hours

3 0
4 years ago
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