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UkoKoshka [18]
3 years ago
6

HELP I NEED HELP ASAP

Mathematics
1 answer:
victus00 [196]3 years ago
8 0

Answer: (5, -2)

Step-by-step explanation:

y= x-7\\2x+y=8

Substitute x-7 for y in 2nd equation

2x+ x-7 =8\\3x-7=8\\3x = 15\\x=5

Solve for y

y=5-7\\y=-2

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Find the missing angle. Round to the nearest tenth.
Paladinen [302]

Answer:

40

Step-by-step explanation:

here is a trig calculator

http://www.carbidedepot.com/formulas-trigright.asp

4 0
2 years ago
six times the sum of a number and 3 is 12 less than 12 times the number .Write and solve an equation to fine the number
Aloiza [94]

6 (x+3)=12x-12

6x+18=12x-12

6x-12x=-18-12

-6x=-30

x=5

4 0
3 years ago
I forgot how to do most of this yet they gave it to me as hw ‍♀️
svp [43]

18.

-2(-9)+3

18+3

21

Explanation: -2(-9) When multiplying numbers that have both a negative sign, the answer is positive. Multiply normally.

19.

-6(-4)0

24(0)

0

Explanation: -6(-4) As I explained before, the answer would be positive.

24(0) Every number multiplied by 0 is 0.

20.

56+(-7)

49

Explanation: 56+(-7) Any problem like this is just basically going to be 56-7.

21.

-36+(-4)

-40

Explanation: -36+(-4) You are simply adding normally then adding the sign. This will only work if the signs are the same. (Signs are positive and negative.)

   

8 0
3 years ago
Read 2 more answers
9. Michelle likes chocolate but it causes acne. She chooses to limit herself to three chocolate bars every 5 days. (So, she eats
OverLord2011 [107]

Answer:

Arithmetic

An = A[n - 1] + 3/5

An = 3/5[n]

Step-by-step explanation:

Number of days = 5

Number of chocolate = 3

Computation:

Recursive:

Number of chocolate eat per day = 3/5

So,

First term a1 = 3/5

So,

An = A[n - 1] + 3/5

Explicit:​

An = 3/5 + 3/5[n-1]

An = 3/5[n]

4 0
3 years ago
Write each fraction as a percent <br> 1) 77/100<br> 2) 3/10<br> 3) 27/50
ValentinkaMS [17]
Think of this, 77/100 is 0.77. 0.77 is 77%. 
Just use this for the rest of the questions.
4 0
3 years ago
Read 2 more answers
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