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3 years ago

2 7/8 plus 3 2/8 plus 1 1/8

Mathematics

2 answers:

Olin [163]3 years ago

7 0

Answer:

7.25

Step-by-step explanation:

2 7/8 + 3 2/8 * 1 1/8 = 7.25

shepuryov [24]3 years ago

4 0

Answer:

7 1/4

Step-by-step explanation:

exact form is 29/4 but if you wanted to simplify it the mixed number form is 7 1/4

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Any suggestions or answers

garik1379 [7]

Subtract 2 from both sides to isolate the x
Then divide both sides by 3 getting the equation...
5/3y - 2/3
Take out 1/3 and put it in front as if you were reverse distributing.
So x = 1/3(5y-2)

3 0

3 years ago

Read 2 more answers

Ramona earns $32,385.60 annually.What is her average biweekly gross pay

Alika [10]

52 weeks in a year divided by 2 equals 26 pay periods. 32,385.60/26 = $1,245.60.

7 0

3 years ago

each side of triangle xyz has length 9 .Find the area of the region inside the circumcircle of the triangle but outside the tria

mote1985 [20]

Answer:

The area of the region inside the circumcircle of the triangle but outside the triangle is

$A=\frac{27}{4}[\pi-3\sqrt{3}]\ units^2$

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the area of triangle

we have an equilateral triangle

Applying the law of sines

$A_t=\frac{1}{2}(b^2)sin(60^o)$

where b is the length side of the equilateral triangle

we have

$b=9\ units$

$A_t=\frac{1}{2}(81)sin(60^o)$

$A_t=\frac{1}{2}(81)\frac{\sqrt{3}}{2}$

$A_t=81\frac{\sqrt{3}}{4}\ units^2$

step 2

Find the area of circle

The area of the circle is equal to

$A_c=\pi r^{2}$

The formula to calculate the radius of the circumcircle of the triangle equilateral is equal to

$r=b\frac{\sqrt{3}}{6}$

where b is the length side of the equilateral triangle

we have

$b=9\ units$

substitute

$r=(9)\frac{\sqrt{3}}{6}$

$r=3\frac{\sqrt{3}}{2}\ units$

Find the area

$A_c=\pi (3\frac{\sqrt{3}}{2})^{2}$

$A_c=\frac{27}{4} \pi\ units^2$

step 3

Find the area of the shaded region

we know that

The area of the region inside the circumcircle of the triangle but outside the triangle is equal to the area pf the circle minus the area of triangle

$A=(\frac{27}{4} \pi-81\frac{\sqrt{3}}{4})\ units^2$

Simplify

$A=\frac{27}{4}[\pi-3\sqrt{3}]\ units^2$

6 0

3 years ago

Raul makes aluminum poles in the shape of rectangular prisms. If he removes the covers on both

vova2212 [387]

Step-by-step explanation:

2feet

feet

8 0

2 years ago

A customer decides to build a fence around the backyard. The yard is rectangular, and with the house an equal distance from both

DerKrebs [107]

Answer:

D). 290 feet

Step-by-step explanation:

Length of the yard = 65 feet

Width of the yard = 80feet

The Perimeter of the yard = 2(l + b)

= 2 * (65 + 80)

= 2 * 145

= 290 feet

∵ Fencing required = 290 feet

Thus, <u>option A</u> is the correct answer.

4 0

3 years ago