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3 years ago

A map has a scale of 1 inch : 200 miles. How far away are locations 4.5 inches apart?

Mathematics

2 answers:

SOVA2 [1]3 years ago

8 0

Answer:

850 miles

Step-by-step explanation:

Xelga [282]3 years ago

5 0

4.5*200=900miles, you can use multiplication for these types of problems

You might be interested in

What property is illustrated by the statement 7+(4+4)=(7+4)+4

White raven [17]

Associative property of addition
<span> 7+(4+4)=(7+4)+4

hope it helps</span>

4 0

3 years ago

(x+3)(x-5)-(4x+1)(1-4x)=17x^

Greeley [361]

Answer: $\boxed{Sol=\{\dfrac{7}{4} \}}\\$

I suppose 17x^ means 17x².

and that we must solve the equation.

Step-by-step explanation:

$(x-3)(x-5)-(4x+1)(1-4x)=14x^2\\\\x^2-3x-5x+15+(4x+1)(4x-1)=17x^2\\\\x^2-8x+15+16x^2-1=17x^2\\\\-8x+14=0\\\\8x=14\\\\x=\dfrac{7}{4} \\\\\boxed{Sol=\{\dfrac{7}{4} \}}\\$

6 0

3 years ago

Michelle is planting flowers in her garden. She wants the ratio of daisies to carnations to be 4 to 2. Michelle wants to plant a

vodomira [7]

Answer:She should plant 32 daisies.

Step-by-step explanation:4:2 can be expressed as 2:1 .

2+1 =3

48/3 = 16(value of one)

16 x 2 = 32

5 0

3 years ago

Factor completely 81x^8-1

marysya [2.9K]

The complete factorized form for the given expression is $\left(9 x^{4}+1\right)\left(3 x^{2}+1\right)\left(3 x^{2}-1\right)$

<u>Step-by-step explanation:</u>

Step 1: Given expression:

$81 x^{8}-1$

Step 2: Trying to factor as a Difference of Squares

Factoring $81 x^{8}-1$

As we know the theory that the difference of two perfect squares, $A^{2}-B^{2}$ can be factored into (A+B) (A-B)

from this, when analysing, 81 is the square of 9, $x^{8}$ is the square of $x^{4}$ . Hence, we can write the given expression as,

$\left(9 x^{4}\right)^{2}-1^{2}$

By using the theory, we get

$\left(9 x^{4}+1\right)\left(9 x^{4}-1\right)$

Again, we can further factorise the term $\left(9 x^{4}-1\right)$

$9 x^{4}$ is the square of $3 x^{2}$ . Therefore, it can be expressed as below

$\left(3 x^{2}+1\right)\left(3 x^{2}-1\right)$

Now, we can not factorise further the term $\left(3 x^{2}-1\right)$ . Because it will come as $\sqrt{3} x$ (3 is not a square term). Thereby concluding that the complete factorisation for the given expression is $\left(9 x^{4}+1\right)\left(3 x^{2}+1\right)\left(3 x^{2}-1\right)$

8 0

4 years ago

Ava has 2 dozen pencils. 3/8 of them are sharpened. how many of them are sharpened?

zzz [600]

Answer:

3/8 of 24 is 9

9 of her pencils are sharpened.

4 0

3 years ago