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Ann [662]
2 years ago
12

3(2x−7)+ 1/3 (7x+2) Help please please

Mathematics
1 answer:
slamgirl [31]2 years ago
5 0

Answer:

25/3x - 61/3

Step-by-step explanation:

Step 1: Write expression

3(2x - 7) + 1/3(7x + 2)

Step 2: Distribute

6x - 21 + 7/3x + 2/3

Step 3: Combine like terms

25/3x - 61/3

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Nikitich [7]
The answer is F.) 0= x^2 - 15x + 54
4 0
3 years ago
Help!! Only one attempt left!
Arturiano [62]

Answer:

The answer is none of the above

Step-by-step explanation:

FJ is the angle bisector of angle F

3 0
3 years ago
Item C sold for 5$ and item D sold for 7 you sold a combined total of 60 of item c and D and you made 400$ how many of each item
Aneli [31]

Answer:

50 of D and 10 of C

Step-by-step explanation:

First of all, put this data into 2 equations.

You sold 60 items, so C+D=60

C is $5 so we can represent it by 5C

D is $7 so we can represent it by 7D

You made $400 total from C and D, so 5C+7D=400

We can use simultaneous equations to solve this.

To eliminate one of these variables, we'll multiply the first one by 5 to make it 5C like the other.

5(C+D=60)     (make sure you multiply both sides.)

so 5C+5D=300

5C+7D=400

Now we solve it:

5C-5C+7D-5D=400-300

7D-5D=100

2D=100

D=50

Now we can substitute this with one of the equations to find C

C+50=60

C=60-50

C=10

so, (10x5)+(50x7)=400

4 0
3 years ago
3x-8=25 solve for x
VMariaS [17]
Add 8 to both sides
3x=33
Divide both sides by 3 
x=11

7 0
3 years ago
Read 2 more answers
If an archer shoots an arrow straight upward with an initial velocity of 160
HACTEHA [7]

Answer:

maximum height of the arrow will be 408 m

Step-by-step explanation:

We have given the function of height as h(t)=-16t^2+160t+8

We know that first derivative of height will be velocity

So first derivative of height

\frac{dh}{dt}=-32t+160

v(t)=-32t+160

We know that at maximum height velocity will be zero

-32t+160=0

t = 5 sec

Sp arrow will be at maximum height at t = 5 sec

So height at t = 5 sec will be

h(5)=-16\times 5^2+160\times 5+8=408m

So maximum height of the arrow will be 408 m

5 0
3 years ago
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