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3 years ago

Number 2 please A) B)

Mathematics

1 answer:

faust18 [17]3 years ago

6 0

2a. 3 degreesC

2b. -3 degrees Celsius

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A bag with 8 marbles are shown below.What is the probability that they are white or grey

horrorfan [7]

Answer: 2/8

Step-by-step explanation:

The probability that the marbles are white or grey is 2/8 because since there is 2 marbles and the total is 8 so you have a probability of 25% to get white or gray

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2 years ago

WILL GIVE BRAINLEST

e-lub [12.9K]

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Step-by-step explanation:a

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2 years ago

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The mean mark is 70% there are 30 students 20 of which are boys with a mean mark if 62% what is the mean for girls

Anna007 [38]

Answer:

This problem can be solved by working backwards.

Average of 30 students = 70.

Total marks of all the 30 students = 30x70 = 2100

Out of these 30, average of 20 students = 62

Total marks of these 30 students = 30x62 = 1860

So the total marks of the remaining 10 students = 2100-1860 = 240

Hence the average of the remaining 10 students = 240/10 = 24

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2 years ago

Fraction has a value thats equal to 7/8

kvv77 [185]

If you mean whats equivalent it's........21/24

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3 years ago

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4) A garden is in the shape of a square with a perimeter of

Leni [432]

Answer:

It costs $154.88 to build the fences.

Step-by-step explanation:

Perimeter of square = $4 \times Side$

We are given that A garden is in the shape of a square with a perimeter of 56 feet.

So, $4 \times side = 56$

Side = $\frac{56}{4}=14 feet$

So, Side of square park = 14 feet

One fence is around the perimeter of the garden, whereas the second fence is 2 feet from the first fence on the outside.

Outer length = 14+2+2=18 feet

So, Perimeter of outer fence = $4 \times side = 4 \times 18 = 72 feet$

Cost of fencing 1 foot = $1.21

Cost of fencing 56 feet = $56 \times 1.21=67.76$

Cost of fencing 72 feet = $72 \times 1.21=87.12$

Total cost = 67.76+87.12=154.88

Hence It costs $154.88 to build the fences.

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2 years ago