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Tomtit [17]
3 years ago
15

Help please!!!! don't understand

Mathematics
2 answers:
olga55 [171]3 years ago
7 0

Answer:

1.5

Step-by-step explanation:

23-17=6

6/4= 1.5

Juliette [100K]3 years ago
6 0
4x + 17 = 23
23-17=6
4x=6
6/4=1.5
X=1.5

Hope this helps
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Solve the system of equations. -12x-5y=40 and 12x-11y=88 x= y=
SpyIntel [72]

Answer:

(0,-8)

x=0

y=-8

Step-by-step explanation:

There are a couple of ways you can solve this I used what I think is called the elimination method

We first start by writing the equations in linear form (y=mx+b)

For the first one we have -12x-5y=40

we add 5y to both sides and subtract 40 to get

-12x-40=5y

divide by 5 to get

-12/5x-8=y

Then the second one we have

12x-11y=88

same deal here, add 11y and subtract 88 to get

12x-88=11y

divide by 11 and get

12/11x-8=y

We then set the two equations equal to each other and get

-12/5x-8=12/11x-8

We can add 8 to both sides and get

-12/5x=12/11x

Just by looking at it you can see that the only solution for x is 0

Plug in 0 to the first equation and get -12*0-5y=40

This means that -5y=40

Solve for y and get -8

3 0
2 years ago
Read 2 more answers
Tell the maximum number of zeros that the polynomial function may have. then use​ descartes' rule of signs to determine how many
Marta_Voda [28]
F(x) = -4x^7 +x^3 -x^2 +5

a) It is a degree 7 polynomial, so will have 7 zeros (some may be repeated).

b) has 3 sign changes, so 1 or 3 positive real zeros. If odd powers have their signs reversed, the signs are changed to +--+, so there are 2 sign changes. There will be 0 or 2 negative real zeros.

____
There is actually 1 positive real zero and 0 negative real zeros. This means there are 3 conjugate pairs of complex zeros.

3 0
3 years ago
135 is what percent of 150?
kolbaska11 [484]

Answer:

90%

Step-by-step explanation:

Is means equals and of means multiply

135 = P * 150

Divide each side by 150

135/150 = 150P/150

.9 =P

Change this to percent form by multiplying by 100%

.9*100%

90%

3 0
3 years ago
What’s 1/6 plus 3/8 in simplest form
gregori [183]

13/24 is the answer to your problem.


7 0
3 years ago
How many
Westkost [7]

Answer:

There are no solutions

Step-by-step explanation:

4/5 ( 20x + 5 ) = 16x - 2

Distibute on the left:

( 4/5 x 20 x ) + ( 4/5 x 5 ) = 16x - 2

16x + 4 = 16x - 2

Subtract 16x from both sides:

4=-2

Add 2 to each side:

6=0

No solutions

8 0
2 years ago
Read 2 more answers
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