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Mathematics 7 Online
OpenStudy (anonymous):

In a diagram of a landscape plan, the scale is 1 cm = 10 ft. In the diagram, the trees are 4.2 cm apart. How far apart should the actual trees be planted? A. 42 ft. B. 420 ft. C. 42 cm D. 4.2 ft.

OpenStudy (anonymous):

@Euler271

OpenStudy (anonymous):

@Euler271 can you help me out? (:

OpenStudy (anonymous):

4.2*10

OpenStudy (anonymous):

= 42 ft

OpenStudy (anonymous):

@Euler271 ah thank you! i have a few more?

OpenStudy (anonymous):

ok. try them first though. guess your best answer

OpenStudy (anonymous):

A conveyor belt carries supplies from the first floor to the second floor, which is 24 feet higher. The belt makes a 60 degree angle with the ground. How far do the supplies travel from one end of the conveyor belt to the other to the nearest foot? If the belt moves at 75 ft./min., how long does it take the supplies to move to the second floor to the nearest tenth of a minutes? A. 34 ft.; 21.0 min. B. 42 ft., 35.0 min. C. 14 ft.; 1.0 min. D. 28 ft.; 0.4 min. @Euler271

OpenStudy (anonymous):

I;m making an educated guess of D.

OpenStudy (anonymous):

|dw:1402697625829:dw| sin((60)= 24/X x = 27.7 = 28 ft 28 ft / 75ft/min = .4 min D is right

OpenStudy (anonymous):

had to solve it for myself lol

OpenStudy (anonymous):

thank you! I have some more, if that's okay.

OpenStudy (anonymous):

OpenStudy (anonymous):

C

OpenStudy (anonymous):

there are 6 equilateral triangles (all 3 angles are the same = 60)

OpenStudy (anonymous):

2 shows the angle cut in half

OpenStudy (anonymous):

@Euler271 You're right!

OpenStudy (anonymous):

i know :P

OpenStudy (anonymous):

The surface area of two similar solids are 404 yd^2 and 1,232 yd^2. The volume of the larger solid is 2,568 yd^3. What is the volume of the smaller solid? A.482 yd^3 B. 842 yd^3 C. 2,232 yd^3 D. 2,568 yd^3

OpenStudy (anonymous):

2. It costs a family $348.00 to buy a 15-ft-by-16 ft rug. If the cost is proportional to the area, what will it cost the family to buy a 10-ft-by-11-ft rug? A. 89.66 B. $188.50 C. $240.00 D. $159.50 I personally think it's D.. @Euler271

OpenStudy (anonymous):

I think it's B for this one

OpenStudy (anonymous):

@Euler271 i forgot to tag you lol oops

OpenStudy (anonymous):

I think the first one is B

OpenStudy (anonymous):

the next one is D (you're right)

OpenStudy (anonymous):

great!

OpenStudy (anonymous):

satelite one is B

OpenStudy (anonymous):

that one was really tough @Euler271

OpenStudy (anonymous):

i found the answer elsewhere. i forgot how to do it :P

OpenStudy (anonymous):

C for this? & oh okay, do you think it's correct?

OpenStudy (anonymous):

A for this?

OpenStudy (anonymous):

and B for this

OpenStudy (anonymous):

i think first is A

OpenStudy (anonymous):

cone C

OpenStudy (anonymous):

the last D

OpenStudy (anonymous):

thank you so much! just a few more. Not sure about this one..

OpenStudy (anonymous):

As for this, A

OpenStudy (anonymous):

From what I've tried, D.

OpenStudy (anonymous):

@Euler271 ^

OpenStudy (anonymous):

parallelogram area is same as a square. answer is B

OpenStudy (anonymous):

triangle is A

OpenStudy (anonymous):

funky shape is A

OpenStudy (anonymous):

AHAHA thank you so much! I sitll have some more, im going to open a new question and tag you so i can medal you!

OpenStudy (anonymous):

ok

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