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3 years ago

Four angles of a pentagon measures 123, 64, 171 and 77. Find the measure of the fifth angle.

Mathematics

2 answers:

cricket20 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

babymother [125]3 years ago

3 0

105°

a pentagon is 540°
123+64+171+77= 435°
540-435=105°

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John has an annual salary of $48,000.00 and he is paid every two weeks. What will his

yanalaym [24]

Answer: $1846

Step-by-step explanation:

First and foremost, we should note that there are 52 weeks in a year. Therefore the biweekly payment of John will be gotten by dividing his gross income by 26 weeks i.e (52weeks/2) since it's biweekly.

Therefore, the gross income on each paycheck will be:

= $48,000.00 / 26

= $1846.15

= $1846 approximately

The gross income on each paycheck is $1846.

8 0

3 years ago

send help!!!! Please!! The sum of the measures of the angles from any triangle is 180 degrees. In triangle ABC, angles A and B h

Ratling [72]

Let Angle A = X

Since Angle B is the same, angle B is also X

Then angle C = X +45

Add the 3 angles together: X +X +X +45 = 3x+45

That equals 180 degrees:

3x+45 = 180

Subtract 45 from both sides:

3x = 135

Divide both sides by 3:

X = 135/3

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7 0

4 years ago

If a polyhedron has 5 faces and 7 vertices, then it must have how many edges?

77julia77 [94]

10, because when you add 5 and 7 then subtract 10 it equals 2

3 0

3 years ago

Four times the sum of 8 and some number is 4. What is the number?

Lunna [17]

Answer:

$\Huge \boxed{\mathrm{-7}}$

$\rule[225]{225}{2}$

Step-by-step explanation:

Let the number be x.

$4(x+8)=4$

Dividing both sides by 4,

$x+8=1$

Subtracting 8 from both sides,

$x=-7$

The number is -7.

$\rule[225]{225}{2}$

3 0

3 years ago

Read 2 more answers

A sailboat depreciates at 15% of its original value each year. If the sailboat was $9500 at its time of purchase, what is the va

eimsori [14]

Answer: After 7 years, the value of the sailboat is $3045.49.

Step-by-step explanation:

Since we have given that

Original value of the sailboat = $9500

Depreciation rate = 15%

Number of years = 7

As we know the formula for "Compound Interest "i.e

$A=P(1-\frac{r}{100})^n$

where,

A denotes Amount

P denotes original value

r denotes rate of depreciation,

n denotes number of years.

So, our equation becomes ,

$A=9500(1-\frac{15}{100})^7\\\\A=9500(1-0.15)^7\\\\A=9500(0.85)^7\\\\A=\$3045.49$

Hence, after 7 years, the value of the sailboat is $3045.49.

6 0

3 years ago

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