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kiruha [24]
3 years ago
7

Four times the sum of three and a number is the same as six times the same number. What equation would you write to find the num

ber ?
Mathematics
1 answer:
alexdok [17]3 years ago
6 0

Answer:

4*(3+x) = 6x

Step-by-step explanation:

Let x be the unknown number

4*(3+x) = 6x

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What is -2/5<br> Write your answer as a fraction HURRY PLS
Yuki888 [10]
-40 over 100, is the answer
4 0
3 years ago
Azmir's checking account pays 0.75% interest monthly and has a $7.50 service fee. If Azmir's balance last month was $825, find t
svetlana [45]

Answer:

Debit of $ 1.31

Step-by-step explanation:

Here, the initial amount in the account = $ 825,

Monthly interest on the amount = 0.75 % of initial amount

=\frac{825\times 0.75}{100}

=\frac{618.75}{100}

=$ 6.1875

And, the service charge = $ 7.50,

Thus, the final amount = Initial amount + Monthly interest - Service charge

= $ 825 + $ 6.1875 - $ 7.50,

= $ 823.6875

So, the total changes in the amount = final amount -  Initial amount

=  $ 823.6875 - $ 825 = -1.3125 ≈ - 1.31

Since, negative sign shows the amount is debited,

Hence, the amount of debit to his account is $ 1.31.

6 0
3 years ago
What number is missing from the fact family?<br> 4<br> 6<br> 10<br> 16
Leona [35]

Answer: I believe it’s 24

Step-by-step explanation: if not sorry

4 0
2 years ago
Read 2 more answers
Order of Operations
Rufina [12.5K]

9 - (a - 7)

Note that - = -1

First, distribute - 1 to all terms within the parenthesis

-1(a - 7) = -a + 7

9 - a + 7

Combine like terms

9 + 7 = 16

-a + 16, or A. 16 - a is your answer

hope this helps

8 0
3 years ago
Read 2 more answers
The unit cost, in dollars, to produce tubs of ice cream is $18 and the fixed cost is $11610. The price-demand function, in dolla
Trava [24]

Answer:

Step-by-step explanation:

Let x represent the number of tubs of ice cream that was produced.

The unit cost, in dollars, to produce tubs of ice cream is $18 and the fixed cost is $11610. This means that the total cost of producing x tubs of ice cream would be

C(x) = 18x + 11610

The price-demand function, in dollars per tub, is p(x)=374-2x.

The revenue function is product of the output by the price function

R(x) = x × p(x) = xp(x)

R(x) = x(374 - 2x) = 374x - 2x²

The profit function P(x) = R(x) - C(x)

Therefore,

P(x) = 374x - 2x² - (18x + 11610)

P(x) = 374x - 2x² - 18x - 11610

P(x) = - 2x² + 374x - 18x - 11610

P(x) = - 2x² + 356x - 11610

At the break even point,

Revenue = total cost.

Therefore,

374x - 2x² = 18x + 11610

2x² + 18x - 374x + 11610 = 0

2x² - 356x + 11610 = 0

Dividing through by 2, it becomes

x² - 178x + 5805 = 0

Applying the general formula for quadratic equations,

x = [- b ±√(b² - 4ac)]/2a

x = [- - 178 ±√(-178² - 4 × 1 × 5805)]/2 × 1

x = [178 ±√(31684 - 23220)]/2

x = [178 ±92]/2

x = (178 + 92)/2 or (178 - 92)/2

x = 135 or x = 43

Therefore, the quantity for the smallest break-even point is 43.

4 0
3 years ago
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