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koban [17]
3 years ago
10

Solve for the variable: 6/25 = d/30

Mathematics
1 answer:
pentagon [3]3 years ago
3 0

Answer:

d = 7.2

Step-by-step explanation:

We can cross multiply the equation to get:

6 * 30 = 25 * d

(* is multiplication sign by the way)

180 = 25d

Divide both sides by 25 to get:

d = 7.2

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schepotkina [342]

Answer:

1) 2/3

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Step-by-step explanation:

4/6 can be divided by 2 to get 2/3 in its simplest

2/4 can be divided by 2 to get 1/2 in its simplest

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6/8 can be divided by 2 to get 3/4 in its simplest

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3 years ago
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Nata [24]

Answer:

<em>8 C sometimes</em>

<em>9 64x^8 y^11</em>

<em>10 c 1.28r^2/ t^9</em>

Step-by-step explanation:

<u>Algebraic Operations </u>

Some basic rules must be fresh in our minds when trying to simplify complex algebraic expressions. For example, the power rule respect to the product or quotient:

\displaystyle \left(\frac{x^n.y^m}{z^p}\right)^q= \frac{x^{qn}.y^{qm}}{z^{qp}}

\displaystyle \frac{x^n.x^q}{x^p}= x^{n+q-p}

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Let's face the questions at hand

8. A number is raised to a negative exponent is negative?

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\displaystyle (-2)^{-3}=\frac{1}{(-2)^3}=-\frac{1}{8}

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<em>Answer: C sometimes </em>

9 simplify(4xy^2)^3(xy)^5

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\displaystyle \frac{1.28 r^2}{t^9}

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3 years ago
Two groups of workers are painting a bridge in the bay. The first group is responsible for painting the north side of the bridge
artcher [175]

Answer:

They will each have painted 8 km. This goal will be met on Day 4.

Step-by-step explanation:

Group A | Group B

Start: 2   | Start: 5                               Day 1

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4 0
4 years ago
the initial vertical velocity of a rocket shot straight up is 42 meters per second. How long does it take for the rocket to retu
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Step-by-step explanation:

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