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2 years ago

7% of what number is 105?

Mathematics

2 answers:

Gnom [1K]2 years ago

5 0

The answer should be n= 1500

amm18122 years ago

4 0

The answer will be 1,500 . You put it in the form
% Is
— —
100 of Then you plug it in

7% 105
— — Then you do 105 times 100 = 10,500
100 of Then you do 10,500/7 = 1,500

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Which expressions are equivalent to 2^5 2^4

KIM [24]

Answer with explanation:

The given expression is

$=2^5 \times 2^4$

→As, multiplication of real number follows Commutative property.

Which states that, if a and b are any two real numbers , then

a × b= b × a

The Expression equivalent to ,the above expression are

$1. 2^4 \times 2^5\\\\ 2. 2^5=32 \text{and} 2^4=16, \text{So} 2^5 \times 2^4=32 \times 16=512$

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vivado [14]

Answer:

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Step-by-step explanation:

Use <u>y2-y1</u>

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2 years ago

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kompoz [17]

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Lucy is a dress maker. She sews 4/7 of a dress in 3/4 hour. Lucy sees at a constant rate. At this rate, how many dresses does lu

IgorLugansk [536]

Answer:

Lucy sews $\frac{16}{21}$ dresses in 1 hour.

Step-by-step explanation:

Given:

Lucy sews $\frac{4}{7}$ of a dress in $\frac{3}{4}$ hour.

She sews at constant rate.

We need to find the number of dresses she makes in 1 hour.

In $\frac{3}{4}$ hour = $\frac{4}{7}$ dress

So in 1 hour = Number of dresses in 1 hour

By using Unitary method we get;

Number of dresses in 1 hour= $\frac{\frac{4}{7}}{\frac{3}{4}} = \frac{4}{7}\times \frac{4}{3}= \frac{16}{21}$

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3 years ago

Identify each matrix A such that A^2 has identical diagonal elements?

Maksim231197 [3]

Answer:

The correct matrices are:

Matrix:

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1 5 7

5 7 1

all diagonal elements of A^2 are: 7^2 + 1^2 + 5^2

Matrix:

9 18 27

27 -9 18

18 27 9

all diagonal elements of A^2 are: 9^2 + 27*18 + 18*27 or (-9)^2

Matrix:

8 1 6

6 8 1

1 6 8

all diagonal elements of A^2 are: 8^2 + 6*1 + 1*6

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3 years ago