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3 years ago

-3 (4b - 10) = 114 What does b equal?

Mathematics

2 answers:

Cerrena [4.2K]3 years ago

8 0

Divide both sides by the numeric factor on the left side, then solve.
b = -7

Viefleur [7K]3 years ago

6 0

Answer:

b = -9.5

Step-by-step explanation:

-3 (4b - 10) = 144

-12b + 30 = 144

-30 -30

-12b = 114

/-12 /-12

b = -9.5

Hope this helps!

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A) A shopkeeper marks the price of an article R's. 550 and gives the customer discount of 10℅.In this way, he gains Rs 75 on the

kumpel [21]

Answer:

Marked Price =MP=550 Marked Price =MP=550

Selling Price=SP=550-10%=550-55=495Selling Price=SP=550-10%=550-55=495

The profit earned is , SP−Profit=CP(CostPrice)The profit earned is , SP−Profit=CP(CostPrice)

CP=495−75=420CP=495−75=420

The difference of MP and CP is 550−420=130The difference of MP and CP is 550−420=130

The percentage of difference w.r.t CP is The percentage of difference w.r.t CP is

130420×100=30.95%

Step-by-step explanation:

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3 years ago

Lopez’s mailing bill is automatically deducting $19 from his bank account every month. How much will the deductions total for th

MakcuM [25]

If Lopez's mailing bill continues to deduct 19$ from his bank account every month for a year, then in total, the deductions total for the year would be $228.00.

Why?

$19.00 is being taken away each month. There are 12 months in a year.

$19.00 x 12 months = the total of $228.00 a year.

5 0

3 years ago

Which of the following has a value of 84? a. 83 b. 512 c. 32 d. 4,096

seropon [69]

Based on the choices, I think the 84 in the problem is not really the number 84. Instead, it is 8 raised to the power of 4 or 8⁴

Thus, 8⁴ = 8 x 8 x 8 x 8 = 4,096

8 x 8 = 66
64 x 8 = 512
512 x 8 = 4,096

So, my answer is d. 4,096

4 0

3 years ago

Read 2 more answers

3x+4y+6z=15 Solve for x.

aalyn [17]

Answer:

Step-by-step explanation:

<h3>Question:-</h3>

To solve for x

<h3>Equation:-</h3>

3x + 4y + 6z = 15

<h3>Solution:-</h3>

=> 3x + 4y + 6z = 15

[On subtracting both sides with 4y]

=> 3x + 4y + 6z - 4y = 15 - 4y

[On Simplification]

=> 3x + 6z = 15 - 4y

[On subtracting both sides with 6z]

=> 3x + 6z - 6z = 15 - 4y - 6z

[On Simplification]

=> 3x = 15 - 4y - 6z

[On dividing both sides with 3]

$= > \frac{3x}{3} = \frac{15 - 4y - 6z}{3}$

[On Simplification]

$= > x = 5 - \frac{4}{3} y - 2z \: (ans)$

3 0

2 years ago

Read 2 more answers

Which of the following is the balance for a single $2700 deposit in an account with an APR of 4.5% that compounds interest month

Zanzabum

The future amount is $3697.52, if a a single $2700 deposit in an account with an APR of 4.5% that compounds interest monthly and is invested for 7 years.

Step-by-step explanation:

The given is,

A single deposit amount - $ 2700

APR - 4.5%

( Compounded monthly )

Period - 7 years

Step:1

Formula to find future amount with an APR compounded monthly,

$A = P(1+\frac{r}{n})^{nt}$ .......................(1)

Where, A - Future amount

P - Initial deposit

r - Interest rate

n - Number of compounding in a year

t - No.of years

From given,

P = $ 2700

r = 4.5%

n = 12 (∵ For monthly n becomes 12 )

t = 7 years

Equation (1) becomes,

$= 2700(1+\frac{0.045}{12})^{(12)(7)}$

$= 2700(1+0.00375)^{84}$

$= 2700(1.36945)$

$= 3697.52$

A = $3697.52

Result:

The future amount is $3697.52, if a a single $2700 deposit in an account with an APR of 4.5% that compounds interest monthly and is invested for 7 years.

3 0

4 years ago