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Paha777 [63]
2 years ago
12

In the whole number 70,819 the place value of the digit 1 is

Mathematics
1 answer:
bulgar [2K]2 years ago
5 0

Step-by-step explanation:

a number is a sequence of digits with every position being multiplied by increasing powers of 10.

and the whole number is then the sum of of these little multiplications.

the first position left of the decimal point is for 10⁰ (1). the second position is 10¹ (10). the third position for 10² (100). and so on.

the given number is therefore just the short version of

7×10⁴ + 0×10³ + 8×10² + 1×10¹ + 9×10⁰

and therefore, the digit 1 in this number has the value 1×10¹ = 10, which is also the place value, 10¹ = 10.

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Divide this decimals 5.2 divided 4
allochka39001 [22]

Answer:

1.3

Step-by-step explanation:

5.2/4 = 1.3

To check, 1.3 multiplied by four is 5.2.

7 0
3 years ago
Which expression is equivalent to -6x + 7.5?
Grace [21]

Answer:

[A] -3(2x-2.5)

Step-by-step explanation:

<em>Given:</em>

<em>Which expression is equivalent to -6x + 7.5?</em>

<em>Solution:
Going through all answer choices:</em>

<em>[A] -3(2x-2.5)</em>

<em>Simplify</em>

<em>-6x + 7.5</em>

<em />

<em>[B] -3(2x + 2.5)</em>

<em>Simplify</em>

<em>-6x - 7.5</em>

<em />

<em>[C] -3(2x-7.5)</em>

<em>Simplify</em>

<em>-6x+22.5</em>

<em />

<em>[D]  -3(2x + 7.5)</em>

<em>Simplify</em>

<em>-6x - 22.5</em>

<em />

<em>Hence, the answer is [A] -3(2x-2.5)</em>

<em />

<em />

<u><em>Kavinsky</em></u>

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5 0
2 years ago
Read 2 more answers
The front wall of the storage shed is in the shape of a trapezoid.
KonstantinChe [14]

Answer:

66 square feet

Step-by-step explanation:

please review the attachment for a detailed explanation

7 0
3 years ago
The side lengths of the following right triangle 15,20 and 25, as shown below. The altitude from the right angle splits the hypo
kompoz [17]

Answer:

h = 12

x = 9

y= 16

Step-by-step explanation:

Given

The attached triangle

Required

Find h, x and y

Let the base of the triangle be 15.

So, the area is:

A = \frac{1}{2} * 15 * 20

i.e\ height = 20

A = \frac{1}{2} * 300

A = 150

Let the base of the triangle be 25.

So, the area is:

A = \frac{1}{2}  * 25 * h

i.e\ height = h

A = \frac{1}{2}  * 25h

Substitute A = 150

\frac{1}{2}*25h = 150

Solve for h

h = \frac{150 *2}{25}

h = 6 *2

h = 12

Considering the smallest triangle

Hypotenuse = 15

So:

15^2 = h^2 + x^2

15^2 = 12^2 + x^2

This gives:

15^2 - 12^2 = x^2

81 = x^2

Take square roots

9 =x

x = 9

Solving for y

x + y = 25

y= 25 - x

y= 25 - 9

y= 16

7 0
2 years ago
Martin deposits $200 in a savings account that earns 5% annual interest. four years later, cary deposits $200 in an account earn
Scrat [10]
<span>Martin deposits $200 in a savings account that earns 5% annual interest.

year         interest                       balance

1              200 * 5%                    200(1.05)

2              200(1.05) * 5%          200(1.05)^2

3              200(1.05)^2*5%        200(1.05)^3

y                                                200(1.05)^y

=> m = 200 (1.05)^y

four years later, cary deposits $200 in an account earning the same interest.

</span>
<span><span>year         interest                       balance

5              200 * 5%                    200(1.05)

6              200(1.05) * 5%          200(1.05)^2

7             200(1.05)^2*5%        200(1.05)^3

y                                                200(1.05)^(y-4)

=> c = 200(1.05)^ (y-4)
</span>
Answer:
Martin: 200(1.05)^y
Cary: 200(1.05)^(y–4)
</span>
3 0
3 years ago
Read 2 more answers
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