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Nata [24]
2 years ago
11

The equation d = m/v can be used to calculate the density, d, of an object with mass, m, and volume, V. Which is an equivalent e

quation solved for V.
Mathematics
2 answers:
gizmo_the_mogwai [7]2 years ago
5 0

Answer:

The equivalent equation of d=\frac{m}{V} is V=\frac{m}{d}.

Step-by-step explanation:

The given equation is

d=\frac{m}{V}

Where d is density, m is mass and V is volume.

We have to solve this equation for V. To separate the variable V on one side multiply both sides by V.

d\times V=\frac{m}{V}\times V

dV=m

Diven both sides by d.

\frac{dV}{d}=\frac{m}{d}

V=\frac{m}{d}

Therefore the equivalent equation of the given equation is V=\frac{m}{d}.

Pepsi [2]2 years ago
4 0
The equivalent equation solved for v is m/d=v.
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Lina has 12 coins in her purse. D of them are dimes and the rest are quarters.
SVETLANKA909090 [29]

Answer:

she has 12 - D quarters.

She has 24 (12-D) cents in quarters

Step-by-step explanation:

You know that the number of coins, and you know the number of dimes - even if the amount is a variable - you can find the amount of quarters with an equation.

If you knew that Lina had 6 dimes instead of D, you would say 12 - 6 and get the number of quarters. You can do the same thing here.

and If you know Lina has 6 quarters, you could find the amount of money in cents by multiplying 6 by 25. You can do that here too, but with variables and an equation.

8 0
2 years ago
Five students divided 74 base-ten rods equally among them. how many base-ten rods were left over?
lesya [120]

Answer:

Idont know that question

8 0
2 years ago
Subtract (7.8 - 5.1t) from (2.8 - 3.2t). Use
tankabanditka [31]

Answer: we can use the commutative property to show the difference in the following ways:-

a. (-3.2t + 2.8) - (-5.1t + 7.8)

b. 1.9t - 5

c. (-3.2t + 2.8) - (-5.1t + 7.8)

Step-by-step explanation:

Commutative simply has to do with "moving around". In the case of addition, the commutative property rule is "x + y = y + x". When it comes to numbers, it my 7 + 8 = 8 + 7. In the case of multiplication, the commutative property rule is "m × n = n × m". So whenever commutative property is referred to, what is expected is "to move around". Commutative property rule can be executed as you pair, add or subtract like terms e.g 2a - 4 + 9a can be rewritten as 2a + 9a - 4 or 11a - 4

In the question, we were asked to subtract (7.8 - 5.1t) from (2.8 - 3.2t) and use the commutative property to show the difference in another way.

Subtracting (7.8 - 5.1t) from (2.8 - 3.2t) will give:-

(2.8 - 3.2t) - (7.8 - 5.1t) (This is the original expression)

Removing the bracket:

2.8 - 3.2t - 7.8 + 5.1t

= 5.1t - 3.2t + 2.8 - 7.8 (we have now shown the difference in another way)

Subtracting the like terms, will give: 1.9t - 5 (This is also the difference shown in another way).

Recall that the initial expression was

(2.8 - 3.2t) - (7.8 - 5.1t).

We can also use the commutative property rule to show the difference in the following way:-

(-3.2t + 2.8) - (-5.1t + 7.8)

By so doing, the figures have been rearranged without altering or affecting the outcome of the expression.

4 0
2 years ago
Peter is at a lumber yard. He gets 2 free boxes of nails for every 10 boards he buys. Write an expression for the number of boxe
Sati [7]
A. The number of 10-boards Peter bought is equal to n divided by 10. Then, each of the 10-boxes will get two boxes of nails. The number of boxes of nails that Peter will have after buying n boards will be,

    N = (2)(n/10)

Simplifying,

<em>   N = n/5</em>

b. If the number of boards are 90 then,

     N2 = (90/10)(2)(100 nails/box)
     N2 = 1800

Answer: 1800
7 0
2 years ago
Read 2 more answers
Identify the focus, directrix, and axis of symmetry of the parabola 6x2+3y=0
Damm [24]
Manipulate the equation to get it in one of the following forms: 
x^{2} =  4py or y^2=4px

Subtract 3y from both sides of the equation: 6 x^{2} =-3y 
Divide by 6 on both sides of the equation (reduce): x^{2} =- \frac{1}{2}y
This is a parabola that opens down and the value of p = - \frac{1}{8}.
The vertex is at the origin (0, 0)
Focus: (0, 0 + p) ⇒ (0, - \frac{1}{8} )
Directrix: y = 0 - p ⇒ y =  \frac{1}{8}
Axis of Symmetry: x = 0
5 0
2 years ago
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