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Greeley [361]
3 years ago
11

Alberto invests his $90 for 2 years at r % per year simple interest.

Mathematics
1 answer:
Sloan [31]3 years ago
4 0

Answer:

rate=55 percent

Step-by-step explanation:

SI=PRT

p=90

r=?

t=2

si=99

R=SI÷PT

R=99÷90×2

r=99÷180=0.55

r=0.55×100

R=55%

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HELP NEEDED <br><br> Which system of linear inequalities is graphed? See screenshot!
devlian [24]
Ur graph.....u have a line that has a y int of -2....it has a slope of 3....it has a solid line...so there is no equal sign...it is shaded above the line, so it is greater then.....y > = 3x - 2

u have another line that has a y int of 2....it has a slope of -1/2....it has a solid line...so there is an equal sign in the problem...it is shaded below the line...so it is less then....
y < = -1/2x + 2
1/2x + y < = 2...multiply by 2
x + 2y < = 4

so ur answer is : y > = 3x - 2 and x + 2y < = 4...the 2nd one


3 0
3 years ago
Mr. Eaton bought 15 bags of topsoil for his garden. Each bag weighs 45 pounds. What is the total weight of the topsoil Mr. Eaton
weqwewe [10]
Hello!

Multiply the amount of bags Mr. Eaton bought by the amount of pounds each bag weighs:

15 * 45 = 675

The total weight of the topsoil Mr. Eaton bought is 675 pounds.
8 0
4 years ago
Domain of (x-5)(x+5)
soldier1979 [14.2K]
X2 -25 that’s the answer but it’s x squared 2 if that makes sense
4 0
3 years ago
The model below represents the equation shown. What is the value of x?
Angelina_Jolie [31]

Answer:

Step-by-step explanation:

4 0
4 years ago
Please help i need this done QUICK im timed ill give the best answer brainliest
seraphim [82]

Answer:

x=−32/5

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

1/2(1/4x−3/5)=1/4(2/5+3/4x)

(1/2)(1/4x)+(1/2)(−3/5)=(1/4)(2/5)+(1/4)(3/4x)(Distribute)(1/2)(1/4x)+(1/2)(−3/5)=(1/4)(2/5)+(1/4)(3/4x)(Distribute)

1/8x+−3/10=1/10+3/16x

1/8x+−3/10=3/16x+1/10

Step 2: Subtract 3/16x from both sides.

1/8x+−3/10−3/16x=3/16x+1/10−3/16x

−1/16x+−3/10=1/10

Step 3: Add 3/10 to both sides.

−1/16x+−3/10+3/10=1/10+3/10

−1/16x=2/5

Step 4: Multiply both sides by 16/(-1).

(16/−1)*(−1/16x)=(16/−1)*(2/5)

x=−3/25

7 0
3 years ago
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