Question

i need some help please

Answer 1

@Vocaloid

Answer 2

any ideas? try to pick the one that matches the table best

notice how the letter grades are the rows and the numbers are all in one column

Answer 3

i would guess the bottom right

Answer 4

good

Answer 5

good

Answer 6

good

Answer 7

good

Answer 8

hm not quite, it's subtraction so since the dimensions of both matrices are the same the operation is performable

Answer 9

good

Answer 10

check your calculations again

2(94) + 2w = 288

2w = 288 - 2(94)
w = ?

Answer 11

50

Answer 12

good

Answer 13

an equation needs an equals sign

Answer 14

a numeral expression only involves numbers, no variables

Answer 15

let x be the cost of 1 bottle

10x = 12x - 2.70
solve for x

Answer 16

1.35

Answer 17

good

Answer 18

"10 dollars per one child plus 2 per additional child" ----> 10 + 2x
"8 dollars per one child + 3 per additional child" ----> 8 + 3x

set them equal to each other and solve for x

Answer 19

so the equation is 10+2x = 8+3x?

Answer 20

if so, 2

Answer 21

yes, x = 2

however, x in this case equals "any additional children after the first child" so we'd have to add 1 to that to get 3 as our solution

Answer 22

good

Answer 23

good

Answer 24

good

Answer 25

almost

that parentheses shouldn't be there, otherwise it makes it a $24 fee rather than a $12 fee after distributing

Answer 26

so the bottom right?

Answer 27

yes

Answer 28

good attempt but keep in mind you have to multiply both sides of the equation by the same number

try to pick a number that will allow you to eliminate both 3 and 7 from the denominator

Answer 29

so...

Answer 30

i'm guessing the bottom right?

Answer 31

good

since 21 is a common multiple of 3 and 7 it will eliminate both fractions

Answer 32

that's a mathematically correct statement but it's not what they're looking for

by "combing like terms" they mean to combine the 8 - 18 part

Answer 33

the answer you chose is the result of adding 18 to both sides

Answer 34

so the top right?

Answer 35

take the original expression, simplify the 8 - 18 part and leave everything else alone

Answer 36

so 10, then the bottom right then?

Answer 37

yes

Answer 38

hearthtown ---> "starts at 88 and decreases by 2 per day" ----> 88 - 2x
polk ---> "starts at 52 and increases by 4 per day" ----> 52 + 4x
set them equal to each other + solve for x

Answer 39

6?

Answer 40

good

however, since we set the initial day on january 1st, 6 days later ends up being January 7th, so your solution should be 7

Answer 41

any ideas on the equations? try following the same pattern as the previous problem

(initial value) + (increase per month)*x

Answer 42

60 + 5x = 75 + 2x?

Answer 43

x = 5?

Answer 44

perfect, 5 = your solution