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3 years ago

Solve C= AB + D for B

Mathematics

2 answers:

saw5 [17]3 years ago

8 0

Answer:

d=-ab+c

Step-by-step explanation:

Evgesh-ka [11]3 years ago

8 0

c = ab + b

Subtract b to both sides

c - b = ab

divide a to both sides

(c -b)/a = b

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I need help answer all of them plz

klemol [59]

Answer:

Step-by-step explanation:

1a. 25/50 =x/100

25*100= 2500/50= 50

A= 50%

1b. 35/40 = x/100

35*100= 3500/40= 87.5

A=87.5%

2a. 15/20= x/100

20*5= 100; 15*5= 75

A=75%

2b. 25/70= x/100

25*100= 2500/70= 35.71

A=35.71

3a. 15/80= x/100

15*100= 1500/80=18.75

A=18.75%

3b. 30/60= x/100

30/60= 1/2;1/2=0.5;0.5= 50%

A=50%

4a. 70/80 =x/100

70*100=7000/80 =87.5

A=87.5

4b.30/60 = 50% ( same as question #3b)

5 0

3 years ago

If 3x + 2 = 4, what is the value of 6x - 4?<br> 2<br> 8<br> 0<br> -2

Sladkaya [172]

Answer:

Step-by-step explanation:

3x + 2 = 4

4-2 = 3x

2 = 3x

x = 2/3

2/3 x 6 = 12/3 = 4 - 4 = 0

8 0

3 years ago

Write the equation that represents the line graphed below

rodikova [14]

Answer:

(2,-6)

Step-by-step explanation:

If it's not that then(-6,2)

But if it's not either i'm sorry

7 0

2 years ago

Helpppppp meeeeeeeeeeeee

denis23 [38]

Answer:

81000 people went to Bonnaroo.

192000 people went to Lollapalooza.

Step-by-step explanation:

Given:

Total number of people attending festivals, $N=273000$

Number of people attending Lollapalooza is 30,000 more than twice the people attending Bonnaroo.

Unknown:

Number of people attending Lollapalooza and Bonnaroo.

Let the number of people attending Bonnaroo be $x$ .

Therefore, the number of people attending Lollapalooza is equal to $30000+2x$

Evaluate:

Sum of people attending Bonnaroo and Lollapalooza is equal to the total number of people attending the festivals. So,

$x+30000+2x=N\\3x+30000=273000\\3x=273000-30000\\3x=243000\\x=\frac{243000}{3}=81000$

Substitute and Solve:

Now, we have, $x=81000$ .

Substitute 81000 for $x$ and solve for the number of people attending both the festivals. This gives,

Number of people attending Bonnaroo = $x=81000$

Number of people attending Lollapalooza = $30000+2x=30000+2(81000)=30000+162000=192000$

Therefore, 81000 people went to Bonnaroo and 192000 people went to Lollapalooza.

8 0

2 years ago

There are 20 rows of seats on the concert hall:25 seats are in the 1st row

lapo4ka [179]

Answer:

20x25=500 10x25+10×25=500

7 0

3 years ago