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choli [55]
3 years ago
15

9-2(7-8) Help please

Mathematics
2 answers:
Aleks04 [339]3 years ago
8 0
11 i used a calculator
yuradex [85]3 years ago
6 0
9 - 2(7 - 8)
9 - 2(-1)
9 - (-2)
11
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Melanie made contributions to a ROTH IRA over the course of working 34 years. Her contributions averaged $3,750 annually.
aleksklad [387]
We assume that we are asked of the monthly contribution made by Melanie to a ROTH IRA. The give data are below:
Period = 34 years * 12 months = 408 months
Total contributions  = $3,750
Solving for the monthly contribution, we have the solution below:
Monthly Contribution = Total contribution / period
Monthly contribution = $3750 / 408
Monthly contribution = $9.2

The answer is $9.2 monthly contribution.
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3 years ago
Express 4% as a ratio strength. <br> a. 1 : 100 <br> b. 4 : 100 <br> c. 1 : 50 <br> d. 1 : 25
sergey [27]
The answer for what the ratio is for 4% is 4:100
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3 years ago
Kiran says, "I bought 2.5 pounds of red and yellow lentils. Both were $1.80 per pound. I spent a total of $4.05." Write a system
Dmitry_Shevchenko [17]

Answer:

The system of equations is given as:

x + y = 2.5 .... Equation 1

1.8x + 1.8y = 4.05....Equation 2

Step-by-step explanation:

Kiran says, "I bought 2.5 pounds of red and yellow lentils. Both were $1.80 per pound. I spent a total of $4.05

Let

x represent red lentils

y represent yellow lentils.

x + y = 2.5 .... Equation 1

x = 2.5 - y

$1.80 × x + $1.80 × y = $4.05

1.80x + 1.80y = 4.05....Equation 2

The system of equations is given as:

x + y = 2.5 .... Equation 1

1.8x + 1.8y = 4.05....Equation 2

6 0
3 years ago
Can someone plz help me?
ivann1987 [24]

Answer: The correct answer is Choice C.

Step-by-step explanation: In order to solve this problem you need to look at the equation’s parts.

The first part is multiplying 5 by the contents of the parenthesis. So, 5(2x-2) equals 10x - 10. Now, but the equation together and simplify it:

10x - 10 + 10x =

20x - 10

3 0
3 years ago
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