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Natali [406]
4 years ago
8

Write a two-step equation that involves multiplication and subtraction, includes a negative coefficient, and had a solution of x

= 7
Mathematics
1 answer:
Contact [7]4 years ago
7 0
9x - 21 = -42
This should be the type of equation that you're looking 4
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On Saturday, 2.4 inches of snow fell. Another 8.125 inches of snow fell on Sunday. What was the total amount of snow that fell i
AfilCa [17]
To get your answer you add the two numbers together. That gets you 10.525 inches of snow.
6 0
3 years ago
Find the next term of the arithmetic sequence. <br><br> 8, –9, –26, –43...
ioda

Answer:

The answer is - 60

Step-by-step explanation:

8 - ( - 9) =  17 \\  - 9 - ( - 26) = 17 \\  - 26 - ( - 43) = 17 \\  - 43 - ( - 60) = 17

8 0
3 years ago
As the height of a dropped ball decreases, what happens to its potential energy?
OlgaM077 [116]

Answer:

it's potential energy decreases

4 0
3 years ago
How much money should be deposited today in an account that earns 7% compounded semiannually so that it will accumulate to $12,0
Korvikt [17]

Given rate is = 7% or 0.07

Total amount needed = $12000

Time = 4 years

Here, the  deposit is  compounded semiannually, means twice per year and this gives 8 annual compounding periods in 4 years.

The equation becomes:

P= \frac{12000}{(1+\frac{0.07}{2})^{2.4}}

P = \frac{12000}{1.035^{8}}

Solving it, we get P = $ 9112.93

Hence $9112.93 should be deposited today.



3 0
3 years ago
The sales tax for an item was $19.20 and it costs $480 before tax. Find the sales tax rate. Write your answer as a percentage
Zigmanuir [339]

Answer:

sales tax rate = 4%

Step-by-step explanation:

In this problem formula to express one term in percentage is used

To express x as percentage of y is given by (x/y*100) %

______________________________________________

Cost of item = $480

sales tax = $19.20

we have to find sales tax rate.

sales tax rate is percentage of cost price which will levied as tax .

thus, we have to find sales tax as percentage of cost price.

using the percentage cost as given above

sales tax as percentage = sales tax/ cost of item *100

sales tax as percentage = 19.20/480 *100 = 4%

Thus, sales tax rate is 4%.

It means that if cost price of item is $100 then $4 will be the sales tax for the item.

5 0
3 years ago
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