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Rudik [331]
3 years ago
12

Can someone help me please!

Mathematics
1 answer:
Alex777 [14]3 years ago
7 0

Answer:

4x^2+17x+15

Step-by-step explanation:

(4x-3)(x+5)

= 4x(x+5) -3(x+5)

= 4x^2+ 20x -3x + 15

= 4x^2 + 17x + 15

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Jaylon has 20 math problems for homework. He has completed 60% of the
garik1379 [7]

Answer:

Jaylon has completed 12 problems.

Step-by-step explanation:

(This is how I learned it- I'm not sure if you have been taught this way..)
Step 1. Set up a proportion
\frac{60}{100} = \frac{x}{20}
Step 2. Do 200x 60 to get 1200
Step 3. Get this equation
\frac{1200}{100} = x
Step 4. Get the answer of 12
I hope this helps! :)

3 0
2 years ago
Read 2 more answers
Which two integers is - 206 between?
Anna71 [15]

Answer:

Answer:

102.5, 103.5

Step-by-step explanation:

a+a+1=206

2a+1=206

2a=205

a=102.5

103.5

I think there is a bug here. They can't be whole numbers.

Step-by-step explanation:

7 0
3 years ago
A car and a truck left Washington, DC traveling in opposite directions. The car traveled 19 miles per hour faster than the truck
sertanlavr [38]
Truck speed be x
car travel at x+19
they travel in opposite directions
so the separation is (x+x+19) * no. of hours
1048 = (2x+19)*8
x = ((1048/8) - 19)/2
=56

truck speed is 56 miles per hour
car speed is 56+19 = 75 miles per hour



6 0
3 years ago
Read 2 more answers
Elimination: 3x+4y=27; 5x-3y=16
aliya0001 [1]
The solution is:
y = 3
and 
x = 5
7 0
3 years ago
1) -5g-6 for g=-2
jeyben [28]

Answer:

1) A

2) A

3) B

4) D

5)A

6) D

7)  A

8) C

9) D

Step-by-step explanation:

1) -5 (-2) -6= 4

2) 3 coins plus c coins = 3 + c

3) x-2 =16, x = 18

4) \frac{z}{-12} =-5. Clearing, z =  60

5) x =13,4

6) 14=t-4. Clearing t = 58

7) -30=j+50, clearing j=80

8) 2.8x=-9.24, clearing x=-3-3

9) 5.8= \frac{z}{2.2}. Clearing z=12.76

4 0
3 years ago
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