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CaHeK987 [17]
3 years ago
5

can someone explain how 1/4 × 900/1 is equal to 225, my mom is asking for an explanation and I used a calculator help me ​

Mathematics
2 answers:
frutty [35]3 years ago
6 0

Answer:

See below

Step-by-step explanation:

\frac{1}{4}  \times  \frac{900}{1}  \\  \\   =  \frac{1 \times 900}{4 \times 1}  \\  \\  =  \frac{900}{4}  \\  \\  =  \frac{9 \times \cancel {100} }{\cancel4}  \\  \\  = 9 \times 25 \\  \\  = 225

larisa [96]3 years ago
6 0

Answer:

four of 225 makes 900/1, or 900. So, one 225 should be one of the four 225s that equal 900. 1/4 × 1/900, or 1/4 of 900, should be 225.

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A man invests his savings in two accounts ,one paying6% and the other paying 10% simple interest per year. He puts twice as much
AnnyKZ [126]

Answer: he invested $46062.5 at 6% and $23031.25 at 10%

Step-by-step explanation:

Let x represent the amount which he invested in the account paying 6% interest.

Let y represent the amount which he invested in the account paying 10% interest.

He puts twice as much in the lower-yielding account because it is less risky.. This means that

x = 2y

The formula for determining simple interest is expressed as

I = PRT/100

Considering the account paying 6% interest,

P = $x

T = 1 year

R = 6℅

I = (x × 6 × 1)/100 = 0.06x

Considering the account paying 10% interest,

P = $y

T = 1 year

R = 10℅

I = (y × 10 × 1)/100 = 0.1y

His annual interest is $7370dollars. it means that

0.06x + 0.2y = 7370 - - - - - - - - - -1

Substituting x = 2y into equation 1, it becomes

0.06 × 2y + 0.2y = 7370

0.12y + 0.2y = 7370

0.32y = 7370

y = 7370/0.32

y = $23031.25

x = 2 × 23031.25

x = 46062.5

6 0
3 years ago
Which polynomial is a perfect square trinomal x^2 -6x +9 b) x^2 -2x +4 c) x^2 +5x +10 d) x^2 +4x +16
cestrela7 [59]
I hope this helps you

3 0
3 years ago
What are the solutions to the quadratic equation x^2-15x+36=0
ZanzabumX [31]
X² - 15 x + 36 = 0
x² - 12x - 3x + 36 = 0
x( x - 12) - 3( x - 12) = 0
(x - 3)( x - 12) = 0

x - 3 = 0
x = 3
or
x - 12 = 0
x = 12

The solutions are 3 and 12
7 0
3 years ago
The area of a rectangle is 12x^2 - 29x + 15. The width is 4x-3. What is the length of the rectangle.
allochka39001 [22]

Answer:

Step by step explanation :

Given:

it is given that in a rectangle the area is is 12x^2 -29x + 15

and the width is 4x- 3

Solution :

The rest is given in pic.

Thank u, please please mark it is Brainliest!

Hope u submit on time!

5 0
3 years ago
I need help anyway can help me
Katen [24]

Answer:

With what?

Step-by-step explanation:

Just give me your question

5 0
2 years ago
Read 2 more answers
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