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3 years ago

Please explain . . .

Mathematics

1 answer:

choli [55]3 years ago

4 0

Answer:

Step-by-step explanation:

$05 \times 2. \div 2$

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The length of a rectangle is 5cm. greater than its width. The perimeter is 58 cm. Find the dimensions of the rectangle.

lidiya [134]

$w-the\ width\\l=w+5-the\ length\\\\\\The\ perimeter\ of\ rectangle:P=58cm\\\\P=2w+2l\\\\2w+2(w+5)=58\\2w+2w+10=58\\4w+10=58\ \ \ \ |subtract\ 10\ from\ both\ sides\\4w=48\ \ \ \ \ |divide\ both\ sides\ by\ 4\\w=12\ (cm)\\\\l=12+5=17\ (cm)\\\\Answer:The\ dimensions\ of\ the\ rectangle:17cm\times12cm$

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3 years ago

Read 2 more answers

Sketch a graph of x + y= -5

olchik [2.2K]

Answer:

Slope:-1

y-intercept:(0,5)

Step-by-step explanation:Hope this helps!!

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3 years ago

If 1 cm represents 30 km on a map and colorado is shown by a 20cm by 15 cm rectangle on the map, what is the approximate actual

zubka84 [21]

Answer:

20*30km = 600km

15*30km = 450km

600km * 450km = 270000 km^2

Step-by-step explanation:

assuming 1cm --- 30km causes that 2cm --- 60km, 3cm --- 90km, 4cm --- 120km etc. Notice that number of km's is 30 times greater than the number of cm's on a map

using this logic, you calculate both real dimensions of Colorado by multiplying 20*30 = 600 km and 15*30 = 450km

Then we use a formula of an area of a rectangle $A=a\cdot b$ assuming $a=600km, \ b=450km$ and get $A=600\cdot 450=270000km^2$ which is an actual area of Colorado

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3 years ago

For each sequence of number

Ostrovityanka [42]

Answer:

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Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

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4 years ago