3 years ago

A tutor invited 2 students to a study group. Those 2 students each invited

Mathematics

2 answers:

NemiM [27]3 years ago

8 0

26 students are invited to the study group

maxonik [38]3 years ago

6 0

I think the answer to this question is 15 or 10
hope this helps:D

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A picture inside a frame is 2 inches longer than it is wide. The picture is in a frame that has a width of 3 inches on each side

geniusboy [140]

Answer:

The dimensions of the frame are 15 in x 13 in

Step-by-step explanation:

Let

x ----> the length of the picture

y ----> the width of the picture

we know that

$x=2+y$ -----> equation A

The area of the picture, including the frame is

$A=(x+6)(y+6)$

$A=195\ in^2$

$195=(x+6)(y+6)$ ----> equation B

substitute equation A in equation B

$195=(2+y+6)(y+6)$

solve for y

$195=(y+8)(y+6)\\y^2+6y+8y+48=195\\\\y^2+14y-147=0$

solve the quadratic equation by graphing

The solution is y=7 in

see the attached figure

<em>Find the value of x</em>

$x=2+7=9\ in$

Find the dimensions of the frame

$x+6=9+6=15\ in$

$y+6=7+6=13\ in$

therefore

The dimensions of the frame are 15 in x 13 in

7 0

3 years ago

Find the sum 7/10+ 2/100

Sholpan [36]

7 2 18
--- + ----- = ------ or as a decimal: 0.72
10 100 25

:))

4 0

3 years ago

A television broadcasting company wants to broadcast every game of a large

Alexeev081 [22]

Answer:

124

Step-by-step explanation:

64 • 1/2= 32

32•1/2=16

16•1/2=8

8•1/2=4

64+32+16+8+4

8 0

3 years ago

Read 2 more answers

What's the circumstances of a circle with a radius of 7 in? round your answer to the nearest inch

devlian [24]

Circumference of a circle is : 2.π.R (R = Radius)
Circumference = 2.π.(7) = 14.π = 14 x 3.1416 = 43.98 in ≈ 44 in

4 0

3 years ago

Which is the standard form for this number? <br> (6 x 1 100 ) + (4 x 1 1,000 )

icang [17]

$6 * 1,100 = 6,600

4 * 11,000 = 44,000

Now 6,600 + 44,000 = 50,600$

8 0

3 years ago