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matrenka [14]
3 years ago
15

Here is an equation 2x + 9 = -15. What are three different equations that have the same solution as that equation? Show or expla

in how you found them Please
Mathematics
1 answer:
Sliva [168]3 years ago
6 0

To find those equations we can do any multiplication or division of both sides of the equation:

Examples:

2x + 9 = -15              | · 2

4x + 18 = -30

2x + 9 = -15              | · (-1)

-2x - 9 = 15

2x + 9 = -15               | ÷ 2

x + 4.5 = -7.5

There is the same solution: x = -12.

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A mother wants to invest $6000 for her children's education. She invests a portion of the money in a bank certificate of deposit
barxatty [35]
Let us assume the amount of money invested in CD = x
Then
Amount of money invested in savings bond = 6000 - x
Percentage of interest in CD = 4%
Percentage of interest in savings bond = 7%
Amount of interest gained in 1 year = $360
Now
0.04x + [(6000 - x) * 0.07] = 360
0.04x + 420 - 0.07x = 360
0.03x = 60
x = 2000
Then
Amount of money invested in the CD account = $2000
Amount of money invested in savings bond = 6000 - 2000
                                                                      = 4000 dollars
4 0
3 years ago
Jeremy bought a $60 pair of sneakers on sale for 15% off. Then, he used a coupon that gave him an additional 10% off. Can Jeremy
stira [4]

Answer:

Jeremy find the cost of the sneakers by solving for the values of the 10% in dollars and subtracting the dollar amount from the cost of the sneaker

Step-by-step explanation:

Step one:

given data

cost of sneakers= $60

Required

the cost of the sneaker after the two discounts

Actually, the two percents given are the discount of the sale.

the first discount is

15%= 15/100*60

=0.15*60

=$9

The second is 10% coupon

10/100*60

=0.1*60

=$6

The total discounts = 9+6= $15

The cost of the sneakers= 60-15= $45

Jeremy find the cost of the sneakers by solving for the values of the 10% in dollars and subtracting the dollar amount from the cost of the sneaker

4 0
3 years ago
Sam cut a pizza into 6 equal sizes slices. What is the measure of the angle formed by one of the pieces
Tcecarenko [31]

Answer: 60

Step-by-step explanation:

A circle is 360 degrees, so 360/6 is your answer.

4 0
3 years ago
Indicate which property is illustrated in step 1
Vedmedyk [2.9K]

Answer:

Step-by-step explanation:

communicative because you moved the three to the other side

6 0
3 years ago
HELP please its the 4.06 Linear Functions if you know it please help broo and girl or whoever!
MissTica

y= 1/2x +2

if x=0 y=2  (0,2)

if x=2 y = 1/2 *2 +2 =1+2 =3  (2,3)

you now have two points so you can plot the line

4 0
4 years ago
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