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3 years ago

59:46

Mathematics

2 answers:

Valentin [98]3 years ago

7 0

Answer:

A. 11.2 cm

Step-by-step explanation:

You need the length of a side first. The length of one side is 1.4 cm because you can determine that from the bottom side; 0.7 cm is half of one.

There are 8 sides, so 1.4 x 8 = 11.2 cm.

grin007 [14]3 years ago

4 0

Answer:

The answer is 11.2 cm

Step-by-step explanation:

You might be interested in

What fraction of 2 kg is 275g? Give your answer in simplest form.

Katen [24]

Answer:

Step-by-step explanation:

1kg=1000g

2kg=2000g

275/2000=11/80g

4 0

3 years ago

Read 2 more answers

Nuts.com sells raw almonds for $10 per pound and roasted pistachios for $12 per pound. Christopher spends $70, before taxes and

sp2606 [1]

Christopher purchased 2.8 pounds of almonds and 3.5 pounds to roasted pistachios.

Step-by-step explanation:

Cost of almonds per pound = $10

Cost of roasted pistachios = $12

Total amount spent = $70

Weight of nuts = 6.3

Let,

Weight of almonds = x

Weight of roasted pistachios = y

According to given statement;

x+y=6.3 Eqn 1

10x+12y=70 Eqn 2

Multiplying Eqn 1 by 10

$10(x+y=6.3)\\10+10y=63\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2;

$(10x+12y)-(10x+10y)=70-63\\10x+12y-10x-10y=7\\2y=7$

Dividing both sides by 2

$\frac{2y}{2}=\frac{7}{2}\\y=3.5$

Putting y=3.5 in Eqn 1

$x+3.5=6.3\\x=6.3-3.5\\x=2.8$

Christopher purchased 2.8 pounds of almonds and 3.5 pounds to roasted pistachios.

Keywords: linear equations, elimination method

Learn more about elimination method at:

#LearnwithBrainly

8 0

2 years ago

Brittany is arranging her shoes. For the amount of shoes she has, she knows she can use either rows of 4 with none left over, or

yawa3891 [41]

Answer:

12 shoes

Step-by-step explanation:

Because 6 times 2 is 12 and 4 times 3 is 12. And that is the lowest common number that they share.

7 0

3 years ago

Read 2 more answers

If the population of a country increases at a rate of 1.5% annually and its current population is 430,000, how many years will i

Sphinxa [80]

Answer:

That is 74 years.

Step-by-step explanation:

1.5% = 0.015.

The equation for the rate of growth is P = 430,000(1.015)^n where n is the number of years.

Triple the population is 430,000 * 3 = 1,290,000, so:

1,290,000 = 430,000(1.015)^n

(1.015)^n = 1290,000 / 430,000 = 3

Taking logs of both sides:

n log 1.015 = log 3

n = log 3 / log 1.015 = 73.8 years

5 0

3 years ago

Read 2 more answers

Slope for (1,5) (3,4)

frez [133]

Answer:

-1,2

Step-by-step explanation:

4-5=-1

3-1=2

y2-y1

x2-x1

8 0

2 years ago