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3 years ago

Help solve plz thanks

Mathematics

2 answers:

padilas [110]3 years ago

5 0

The answer is :

b = t - 5 / 4

klasskru [66]3 years ago

5 0

Answer:

b = $\frac{t-5}{4}$

Step-by-step explanation:

Given

4b + 5 = t ( isolate 4b by subtracting 5 from both sides )

4b = t - 5 ( divide both sides by 4 )

b = $\frac{t-5}{b}$

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5(2x + 3)2 when x = 3.

Anni [7]

Answer:

Step-by-step explanation:

5 x 2=10 x 3 = 30

6 0

3 years ago

X and y vary inversely and x=50 when y=5 find y when x=10 what is k?

Kisachek [45]

Answer:

Part A)

1) $k=250$

2) $y=25$

Part B)

1) $k=7$

2) $y=84$

Step-by-step explanation:

Part 1) x and y vary inversely and x=50 when y=5 find y when x=10 what is k?

we know that

A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form $y*x=k$ or $y=k/x$

step 1

Find the value of k

x=50 when y=5

substitute the values

$y*x=k$ ------> $5*50=k$ -----> $k=250$

The equation is equal to

$y*x=250$ or $y=250/x$

step 2

Find y when x=10

substitute the value of x in the equation and solve for y

$y*(10)=250$

$y=250/10=25$

Part B) x and y vary directly and x=6 when y=42 find k what is y when x=12

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form $y/x=k$ or $y=kx$

step 1

Find the value of k

x=6 when y=42

substitute the values

$y/x=k$ ------> $42/6=k$ -----> $k=7$

The equation is equal to

$y/x=7$ or $y=7x$

step 2

Find y when x=12

substitute the value of x in the equation and solve for y

$y=7(12)=84$

5 0

3 years ago

Aaron made a $400 purchase using his credit card. The credit card has a simple interest rate of 12% each year. How much will Aar

melisa1 [442]

Answer: 448 dollars

=============================================

Work Shown:

P = 400 is the balance

r = 0.12 is the decimal form of the interest rate

t = 1 is the number of years

Use those values to get the simple interest to be

i = P*r*t

i = 400*0.12*1

i = 48

The amount of interest charged is $48

Add this onto the balance of 400 dollars and the total amount Aaron owes is P+i = 400+48 = 448 dollars.

5 0

3 years ago

What is the volume of a rectangular prism with the dimensions: base 5 8 cm, height 2 3 cm, and length 3 4 cm?

Darina [25.2K]

58 x 23 x 34 = 45356 cm³

7 0

3 years ago

Steve paid 10% tax on a purchase of 40$

aivan3 [116]

He would need to pay $44 for the purchase because
10% x $40 = $4
$40 + $4 = $44

hope this helped ((:

5 0

3 years ago