HELPFor the system below solve using linear combinations method 4x-7y=-2 and 12x-21y=-42

Answers

Answer 1

Answer: No solution

cz

12x-21y=-42 -----> /3 (divided by 3 )
4x-7y=14 ------ (2)
4x-7y=-2 ------- (1)

how 4x-7y =14 an = -2

and if we
(2)-(1)
0=12
#

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Last week Trent made 80 on his quiz. This week he made a 90. What is the percent of increase in his score? A.10%
B.12.5%
C.11%
D.15%

Answers

90=80x
x=9/8=1.125
.125*100=12.5%

(A)10%
because 10+80 equals 90

Kent completed his homework in 52.752 minutes . What is the number rounded to the nearest tenths . Example how u divided?.

Answers

Answer: 52.752 7 in the tenths look to the next space on the right is 5 any number 5 and above you need to add 1 , any numbers after the tenths can be ignored, new number is 52.8

Final answer:

When rounding 52.752 to the nearest tenth, you look at the hundredths place (5), which indicates you should round up. Thus, the answer is 52.8.

Explanation:

The question is asking for the number 52.752 to be rounded to the nearest tenths place. When rounding, you look to the digit to the right of the place you're rounding to. In this case, we're rounding to the tenths place, so we look at the hundredths place, which is 5. Since 5 is equal to or greater than 5, we round the tenths digit (which is 7) up by 1. So, 52.752 rounded to the nearest tenth is 52.8.

Learn more about Rounding Decimals here:

brainly.com/question/13769251

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Will practices piano for 1/4 hour,1/2 hour or 3/4 hour every other day if a line plot shows two Xs above each value of time what is the total amount of time will has spent practicing?Sorry i dont understand

Answers

the to this question is 5/4 because i found the common denominator and added my numerator. so thats how i got my answer

It is to 2:10 p.m. What is the time that is 7 hours and 20 minutes before the time shown

Answers

2.10 p.m we can also write as 14:10.

14:10 - 7 hours= 7:10 am.
7:10 am- 20 minutes= 6:50 am.

It's 6:50 am.

Greetings,
n00nst00p :)

$2:10\ p.m.\n \n7\ hours \ before: \ \ 7:10\ a.m.\n \n20\ minutes\ before:\ \ 6:50\ a.m.\n\nAns.\ 6:50\ a.m.$

4. Frank bought lunch for $5.60 at a diner. He spent $2.00 to ride the bus to the mall and back, and spent $6.50 while he was at the mall. His friend Bill paid him back $5.00 that he had borrowed last week. If Frank arrived at home with $10.50 in his pocket, how much did he have when he left home that morning?

Answers

Frank had $19.60 dollars when he left home that morning. If you add the $5.60, $2.00, and $6.50 that he spent while he was away from home, because he had that money when he left, you get a total of $24.60. You should then subtract the $5.00 his friend gave him, since he didn't have that when he left home. This brings you to a total of $19.60, which is the amount Frank left home with.

he had $19.60
u take $5.00 of the amount he had at home then u add the rest
so 5.50+2.00+5.60+6.50=19.60
sorry if im not right

Please help with hold page it is not alot I'm running out of the time

Answers

I'll teach you how to do them, but not do them all for you.

2.
6:5 = ___:35
35 / 5 = 7
So you've got to multiply 6 by 7.
6:5 = 42:35

3.
2:3 = 20:___
20 / 2 = 10
So you've got to multiply 3 by 10
2:3=20:30

4.
36:24 = 6:___
36 / 6 = 6
So you've got to divide 24 by 6.
36:24 = 6:4

Keep trying and if you need more help feel free to ask.

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