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3 years ago

Anyone know what to say for that question

Mathematics

1 answer:

Alex Ar [27]3 years ago

8 0

Answer:

It's an equilateral triangle.

My justification..... it looks like it

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What is 3/4 of a dollar forgot will mark Brainliest if right

mel-nik [20]

Answer:

0.75 U.S. dollars

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

College A and College B made it to the state championship

timama [110]

The number of students in vans and bus are (8,22)

Step-by-step explanation:

Let the number of students in the van be “x”

Let the number of students in the bus be “y”

It is given that each bus and van have same number of students.

For college A-

8 vans and 8 bus were rented to ferry 240 students

No of students in 8 bus= 8y (since y students were in each bus)

No of students in 8 van= 8x (since x students were in each van)

Hence 8x+8y=240 cancelling the equation with common factor 8, the equation becomes ⇒ x+ y=30

For College B

4 vans and 1 bus were rented to ferry 54 students

No of students in 1 bus= 1y (since y students were in each bus)

No of students in 4 van= 4x (since x students were in each van)

4x+y=54

Comparing the both equation we get and subtracting equation 2 from 1

x+y-30-4x-y-54=0 ∵ Cancelling y

-3x=-24

∴ x=8 putting the value of x in equation 1 we get y as 22

Thus the answer is (8,22)

6 0

3 years ago

If you could please help, what is the missing answer?<br><br> Thank you to anyone who helps out!

ICE Princess25 [194]

Answer:

Step-by-step explanation:

let s be the snowman, g be the girl, and t be the christmas tree

2s+g=24

2t+2ts=132

3t+2g=26

subtract 2 times the first equation from the third one to get

3t-4s=-22

from the second equation we can deduce

2t(1+s)=132

t(1+s)=66

t=66/(1+s)

Substitute:

3(66)/(1+s)-4s=-22

3(66)/(1+s)=4s-22

3(66)=(4s-22)(1+s)

3(66)=-18s+4s^2-22

4s^2-18s-220=0

using the quadratic formula, we get s = 10, s = -5.5.

2(10)+g=24

g=4

2t(1+10)=132

2t=12

t=6

So 2s+t*g= 20+6*4=48

you would get a different solution for the negative s, but since snowmen cannot be negative, 48 is the answe.r

8 0

3 years ago

Four and two fifths + two and two thirds=<br><br>pls help

Nataly_w [17]

Answer:

7 and 1/15

Step-by-step explanation:

4+2 then add two fifths with two thirds (convert them into a mixed number)

Write the mixed number as a sum of the whole number (6+1 1/15)

6+1 is 7

answer is 7 1/15

8 0

3 years ago

A uniform border on a framed photograph has the same area as the photograph. What are the outside dimensions of the border if th

Black_prince [1.1K]

Given dimension of photograph = 25cm * 20cm

So area of photograph = 500cm²

Now, let the width of frame border be = x

So, dimensions of photograph + frame= (25 + 2x)*(20 + 2x)

As given, the area of frame is same as photograph , so

Area of picture + frame = 1000cm ²

Hence, area equals

$4x^{2}+90x+500=1000$

$4x^{2}+90x-500=0$

$2x^{2}+45x-250=0$

Solving this quadratic equation,

For the quadratic equation of the form $ax^{2}+bx+c=0$ , solution is:

x1,2 = $\frac{-b+\sqrt{b^{2}-4ac}}{2a}$

Now putting a=2, b=45, c= -250 and solving he above equation, we get two values of x.

x = -27.11 (discard it as it is negative) and

x = 4.61 cm

Hence the dimensions of the frame are:

20+2x = 20+2(4.61) = 29.22 cm

25+2x = 25+2(4.61) = 34.22 cm

7 0

3 years ago