Question

i need more answers checked

Answer 1

@Vocaloid

Answer 2

good

Answer 3

good

Answer 4

check the top right key again

see which mile number lines up with the 1 inch mark

Answer 5

5?

Answer 6

.5

there's a decimal point

so .5 is your sol'n

Answer 7

hm not quite

small leg of the big triangle/small leg of the smaller triangle = long leg of the big triangle/small leg of the smaller triangle

plugging in the actual sides we get

EG/GH = EF/HI

plug in the side values and solve for EF

Answer 8

18/10 is 1.8

Answer 9

make sure you are also plugging in the other side too

Answer 10

"EG/GH = EF/HI"

you have successfully plugged in EG and GH. you also need to plug in HI. then solve for EF

Answer 11

according to the question, HI = 16

so plug in HI = 16 into

18/10 = EF/HI

then solve for EF.

Answer 12

so ef/16...

Answer 13

yes

then solve for EF

Answer 14

28.8

Answer 15

good, that's your solution

Answer 16

not quite

be very careful when you're writing your proportions. you must compare corresponding sides on both sides of the ratio.

DE/EC = BA/AC

solve for BA

Answer 17

26/34 = 0.76

Answer 18

good, keep going with the other side of the equation.

Answer 19

the entire equation is "DE/EC = BA/AC" you cannot neglect the right side BA/AC.

Answer 20

51.68

Answer 21

so B?

Answer 22

ugh I think I made a mistake w/ the original proportion

DE/DC = BA/AC

should be DC not EC

Answer 23

so 26/36 = BA/68

Answer 24

so x/68= 0.72

Answer 25

48.96, rounded it's 49

Answer 26

good, it's closer to 49.1 with less rounding so go w/ 49.1

Answer 27

hm, not quite

area = L*W

so calculate area of big house/area of small house

Answer 28

any progress?

1. multiply the dimensions of the bigger house

2. multiply the dimensions of the smaller house

3. divide the result from step 1 over step 2.

Answer 29

i got B, somehow..

Answer 30

dimensions of the big rectangle: 20 * 44
dimensions of the small rectangle: 22 * 10

(20*44) / (22 * 10) = ?

Answer 31

2.18

Answer 32

be careful with parentheses

you must calculate 20*44 first

then you must calculate 22*10

then you must divide the two quantities at the end.

Answer 33

yeah, still 2.18.

Answer 34

20*44 = 880
22*10 = 220

880/220 = ?

Answer 35

880 divided by 220 is....?

Answer 36

4

Answer 37

good

so your ratio is 4:1

Answer 38

good

Answer 39

good

Answer 40

hm

let's assume he will only sod the green parts (grass)

calculate

area of the entire rectangle - area of the gray part (the house)

that will give you the # of square units

Answer 41

since one unit has length of 10, one square unit has area 10^2, or 100 feet sq

therefore, multiply the result from the previous step by 100

since one roll of sod covers 9 square feet, divide the result by 9

Answer 42

so...

Answer 43

so 30?

Answer 44

the final result will be much larger than that

calculate

area of the entire rectangle - area of the gray part (the house)

what did you get for this step?

Answer 45

no i mean that's all the sides added up

Answer 46

why are you adding up the sides?

the formula for the area of a rectangle is length*width.

Answer 47

5 * 9?

Answer 48

good but that's the area of the entire lot

you must then subtract the area of the house (the grey part)

Answer 49

which that makes 5

Answer 50

the dimensions of the grey area is 2 by 4

therefore 45 - (2*4) = ?

Answer 51

37

Answer 52

good

then proceed with the rest of the steps

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Vocaloid
since one unit has length of 10, one square unit has area 10^2, or 100 feet sq

therefore, multiply the result from the previous step by 100

since one roll of sod covers 9 square feet, divide the result by 9
\(\color{#0cbb34}{\text{End of Quote}}\)

Answer 53

so 37 * 100? then divide it by 9?

Answer 54

yes

Answer 55

411.1

Answer 56

good

since we only can buy whole # bags of sod you just round that up to 412 as your sol'n

Answer 57

good