All categories

3 years ago

Please help!!!!! Answer ASAP

Mathematics

1 answer:

V125BC [204]3 years ago

6 0

Answer:

$\large\boxed{P=5\dfrac{3}{10}\ cm=5.3\ cm}$

Step-by-step explanation:

If you want find the perimeter, then you must add all lengths of sides of the given polygon.

$P=AB+BC+CD+DE+EA\\\\AB=1\dfrac{3}{4}\ cm,\ BC=1\dfrac{1}{10}\ cm,\ AE+DC=1\dfrac{1}{5}\ cm,\ DE=1\dfrac{1}{4}\ cm\\\\P=1\dfrac{3}{4}+1\dfrac{1}{10}+1\dfrac{1}{5}+1\dfrac{1}{4}=\left(1\dfrac{3}{4}+1\dfrac{1}{4}\right)+1\dfrac{1}{10}+1\dfrac{1\cdot2}{5\cdot2}\\\\=2\dfrac{4}{4}+1\dfrac{1}{10}+1\dfrac{2}{10}=3+2\dfrac{3}{10}=5\dfrac{3}{10}$

Other method.

Convert the mixed numbers to the decimal:

$AB=1\dfrac{3}{4}\ cm=1.75\ cm\\\\BC=1\dfrac{1}{10}\ cm=1.1\ cm\\\\AE+DC=1\dfrac{1}{5}\ cm=1.2\ cm\\\\DE=1\dfrac{1}{4}\ cm=1.25\ cm\\\\P=1.75+1.1+1.2+1.25=5.3\ cm$

You might be interested in

How do I find the reciprocal of the fractions 2/3 and 8/3

Mice21 [21]

2/3 reciprocal is 3/2, & 8/3 reciprocal is 3/8. The numbers are just filled to find their reciprocal!

5 0

3 years ago

Read 2 more answers

Boyd grows only tomatoes and raspberries in his garden. Last year, he grew 140 pounds of tomatoes and 60 pounds of raspberries.

nadya68 [22]

Answer:

29%.

Step-by-step explanation:

We have been given that Boyd grew 140 pounds of tomatoes and 60 pounds of raspberries. This year, the production, by weight, of tomatoes declined by 20 percent, and the production, be weight, of raspberries declined by 50 percent.

First of all, we will find the weight of tomatoes and raspberries using the given information.

Since the production, by weight, of tomatoes declined by 20 percent, so this year production of tomatoes is 80% of 140 pounds.

$\frac{80}{100}\times 140=0.80\times 140=112$

Since the production, be weight, of raspberries declined by 50 percent, so this year production of raspberries is 50% of 30 pounds.

$\frac{50}{100}\times 60=0.50\times 60=30$

Total production this year: $112+30=142$ pounds.

Now, we will percent decrease formula.

$\text{Percent decrease}=\frac{\text{Initial value-Final value}}{\text{Initial value}}\times 100$

$\text{Percent decrease}=\frac{(140+60)-142}{140+60}\times 100$

$\text{Percent decrease}=\frac{(200)-142}{200}\times 100$

$\text{Percent decrease}=\frac{58}{200}\times 100$

$\text{Percent decrease}=0.29\times 100$

$\text{Percent decrease}=29$

Therefore, the total yield, by weight, of Boyd's garden declined by 29%.

5 0

3 years ago

Saul wrote the statements shown in the chart.

kupik [55]

<span>The correct answer is option C. i.e. Statements 1 and 2 are postulates because they are true facts.A line must contain atleast two point because then only line can be formed. Similarly, a plane is formed when there are atleast three non-collinear points.</span>

7 0

2 years ago

What is the 138-20+15

nlexa [21]

Then answer you seek is 133.

5 0

3 years ago

Convert y - 1 = 2(x - 4)

Dimas [21]

The answer is y=2x-7

6 0

3 years ago

Read 2 more answers