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Shtirlitz [24]
3 years ago
12

IDENTIFY LIKE TERMS 5y + 15 - 80 - 10y

Mathematics
2 answers:
sleet_krkn [62]3 years ago
4 0

Answer:

−5y−65

Step-by-step explanation:

(5y−10y)+(15−80)

1) Collect like terms.

2) Simplify.

dexar [7]3 years ago
3 0

Answer:

5y and -10y

15 and -80

-5y -65

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log_{10} 3x+1=5

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3x+1=100000

3x=99999

x=333333


Just remember that in the form of log_ab=x, you get a^x=b.


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3 years ago
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(D) Work out <br> 1/4 of 28
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Someone ask me to solve this.
Semenov [28]
X=2h, y=3k

Substitute these values into equations.

y+2x = 4 ------> 3k+2*2h=4 ----->  3k +4h =4

2/y - 3/2x = 1-----> 2/3k -3/(2*2h) = 1 ------> 2/3k - 3/4h =1

We have a system of equations now.

 3k +4h =4          ------> 3k = 4-4h ( Substitute 3k in the 2nd equation.)
2/3k - 3/4h =1

2/(4-4h) -3/4h = 1
2/(2(2-2h)) - 3/4h = 1
1/(2-2h) -3/4h - 1=0

4h/4h(2-2h) -3(2-2h)/4h(2-2h) - 4h(2-2h)/4h(2-2h) =0

(4h- 3(2-2h) - 4h(2-2h))/4h(2-2h) = 0
Numerator should be = 0
4h- 3(2-2h) - 4h(2-2h)=0

Denominator cannot be = 0
4h(2-2h)≠0

Solve equation for numerator=0
4h- 3(2-2h) - 4h(2-2h)=0
4h - 6+6h-8h+8h² =0
8h² +2h -6=0
4h² + h-3 =0
(4h-3)(h+1)=0
4h-3=0, h+1=0
h=3/4  or h=-1

Check which
4h(2-2h)≠0
1) h= 3/4  , 4*3/4(2-2*3/4)=3*(2-6)= -12 ≠0, so we can use h= 3/4
2)h=-1, 4(-1)(2-2*(-1)) =-4*4=-16 ≠0, so we can use h= -1, also.

h=3/4, then  3k = 4-4*3/4 =4 - 3=1 , 3k =1, k=1/3
h=-1, then  3k = 4-4*(-1) =8 , 3k=8, k=8/3 

So,
if h=3/4, then  k=1/3,
and if h=-1, then  k=8/3 .




6 0
3 years ago
Cheyenne works 15 hours a week at the movie theater. She earns $8 an hour. Which statement about her weekly income is true?
Anni [7]

Answer:C- Her net income is less than $120.

Step-by-step explanation:

6 0
3 years ago
If x = 13 then the value of \sqrt{x-5} is
statuscvo [17]

Answer:

2.23

Step-by-step explanation:

take the squareroot of 13-5

(it's been corrected)

8 0
3 years ago
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