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weeeeeb [17]
3 years ago
8

Help me with number 11 . ASAP AND PLZ SHOW YOUR WORK! THXS

Mathematics
2 answers:
Sladkaya [172]3 years ago
5 0
C hope i could help you out
Lapatulllka [165]3 years ago
3 0

15.5x = 9.25x + 12.5
Subtract 9.25x on both sides
15.5x - 9.25x = 12.5
Combine like terms
6.25x = 12.5
divide both sides by 6.25 to have x alone
\frac{6.25x}{6.25}  =  \frac{12.5}{6.25 }  \\  \:  \:  \:  \:  \:  \:  \:  \:  x = 2
So B 2 hours
You might be interested in
I really need help with these, if you know any it would help so much
algol13

Answer:

1: 23.85

2: 83%

3: 44

Step-by-step explanation:

1 - do 53x0.45 (23.85)

2 - Divide 20 by 24, which you get 0.833333333 and move the decimal 2x to the right. You get 83.3333333, but round. So 83%

3 - do 80x0.55 (44)

5 0
3 years ago
I need help with these please
notsponge [240]

Answer:

1a - no

1b - yes

1c - no

2 - 1.5 grams of protein

3 - a solution to this equation tells us how many grams of protein/fat there could be depending on how many grams of the other there are. a solution to this is 6 grams of protein and 4 grams of fat.

Step-by-step explanation:

1a

4(5)+9(2)=60

20+18=60

38=60

the equation is false

1b

4(10.5)+9(2)=60

42+18=60

60=60

the equation is true

1c

4(8)+9(4)=60

32+36=60

68=60

the equation is not true

2

plug in 6 for the f value

4p+9(6)=60

4p+54=60

subtract 54 from both sides

4p=6

divide both sides by 4 to get p alone

p=1.5

3

a possible solution can be seen by graphing the equation using the intercepts. the intercepts for this equation are (15,0) and (0,6.6). attached is an image of the graph. the points where the line crosses are possible solutions. the line crosses the point (6,4) on the graph, which represents 6 grams of protein and 4 grams of fat. you can also check this by plugging these values into the equation.

4 0
2 years ago
Students planted 4(2x+3y) amount of trees on saturday and then 3(5x+4) amount of trees on Sunday. What is the total amount of tr
algol [13]
We have to add the amounts:

4(2x+3y) + 3(5x+4)

First, though, we have to distribute:

4*2x + 4*3y + 3*5x + 3*4
8x + 12y + 15x + 12

Now we just need to simplify:

23x + 12y + 12

The  students planted 23x + 12y + 12 trees total.
7 0
3 years ago
Please answer asap!!!!
Ivanshal [37]

Answer:

180 - 61 = 119

Step-by-step explanation:

So from A to D it is 180 degrees so just have to subtract 61 from 180 for an answer.

3 0
3 years ago
170 is 1/10 of 17 true or false
Arisa [49]
I I'm guessing true if you don't think so then don't take my advice.
6 0
2 years ago
Read 2 more answers
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