All categories

3 years ago

D-2.8 divided by 0.2 = -14 solve the equation

Mathematics

2 answers:

yarga [219]3 years ago

8 0

Answer:

The value of d is 0.

Step-by-step explanation:

Consider the provided statement.

d-2.8 divided by 0.2 = -14

This can be written as:

$\frac{d-2.8}{0.2}=-14$

Multiply both the side by 0.2

$d-2.8=-14\times 0.2$

$d-2.8=-2.8$

Add 2.8 to the both sides.

$d-2.8+2.8=-2.8+2.8$

$d=0$

Hence, the value of d is 0.

ohaa [14]3 years ago

7 0

(d-2.8)/0.2=-14
d-2.8=-14*0.2
d-2.8=-2.8
d=-2.8+2.8
d=0

You might be interested in

there were 630 tickets sold. each ticket cost $21. how much money was raised from selling the .tickets

Orlov [11]

The amount of money made was $13,230.

7 0

3 years ago

Read 2 more answers

This graph shows the altitude of an airplane over time. Which story matches the graph?

Oksi-84 [34.3K]

Answer:

A.) The aircraft rose quickly into the air at takeoff, and then continued at a constant altitude.:)

6 0

3 years ago

Read 2 more answers

Find the area of a triangle with sides of length 6 and 7 and included angle 74°. (round your answer to one decimal place.)

Yanka [14]

We use this formula:
Area = ½ • side 1 • sine (A) • side 2
Area = ½ • 6 • sine (74) • 7
Area = 21 • sine (74)
Area = 21*0.96126
Area = 20.18646 
Area = 20.2 (rounded)
Source:
http://www.1728.org/triang.htm

5 0

3 years ago

The number of kilograms of water in a human body varies directly as the mass of the body. An 87-kg person contains 58 kg of wat

katen-ka-za [31]

Answer:

50 kg water.

Step-by-step explanation:

We have been given that the number of kilograms of water in a human body varies directly as the mass of the body.

We know that two directly proportional quantities are in form $y=kx$ , where y varies directly with x and k is constant of variation.

We are told that an 87-kg person contains 58 kg of water. We can represent this information in an equation as:

$58=k\cdot 87$

Let us find the constant of variation as:

$\frac{58}{87}=\frac{k\cdot 87}{87}$

$\frac{29*2}{29*3}=k$

$\frac{2}{3}=k$

The equation $y=\frac{2}{3}x$ represents the relation between water (y) in a human body with respect to mass of the body (x).

To find the amount of water in a 75-kg person, we will substitute $x=75$ in our given equation and solve for y.

$y=\frac{2}{3}(75)$

$y=2(25)$

$y=50$

Therefore, there are 50 kg of water in a 75-kg person.

3 0

3 years ago

Bill found a book he wanted on sale for $20.80. The original price of the book was $32. Find the discount rate.

Maurinko [17]

Answer:

35% discount

Step-by-step explanation:

We can first find what percent of 32 20.80 is.

This can be shown by using a percent proportion.

$\frac{20.80}{32} = \frac{x}{100}$

We can cross multiply to find the value of $x$ .

$20.80\cdot100=2080\\\\2080\div 32 = 65$

So 20.80 is 65% of 32.

However, this is the percent of the original price. To find the discount, we have to subtract 65 from 100.

$100 - 65 = 35$

So the book was on a 35% discount.

Hope this helped!

3 0

4 years ago