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2 years ago

3/8=r+2/3 PLease help im really lazy

Mathematics

2 answers:

stira [4]2 years ago

5 0

Answer:

- 7/24

Step-by-step explanation:

Step 1:

3/8 = r + 2/3

Step 2:

9/24 = r + 16/24

Step 3:

9/24 - 16/24 = r

Answer:

- 7/24 = r

Hope This Helps :)

ratelena [41]2 years ago

5 0

Answer:

-7/24

Step-by-step explanation:

Isolate the variable, r. Note the equal sign, what you do to one side, you do to the other.

Subtract 2/3 from both sides:

3/8 (-2/3) = r + 2/3 (-2/3)

3/8 - 2/3 = r

Simplify. First, find common denominators. Note that what you do to the denominator you do to the numerator.

(3/8) x (3/3) = (9/24)

(2/3) x (8/8) = (16/24)

Subtract:

(9/24) - (16/24) = -7/24

r = -7/24

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noname [10]

X=148/261

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8 0

2 years ago

Read 2 more answers

a local community theather 240 tickets for Saturday nights performance they sold 180 more st full price then the discount ticket

gizmo_the_mogwai [7]

Question:

The local community theater sold a total of 240 tickets for Saturday night’s performance. They sold 180 more full-price tickets than discount tickets. Which system of equations can be used to model this situation?

Answer:

$x = 180 + y$

$x + y = 240$

Step-by-step explanation:

Given

$Tickets = 240$

Represent the number of full price with x and discounted price with y.

From the question:

x = 180 more than y

So:

$x = 180 + y$

Also, a total of 240 were sold.

So:

$x + y = 240$

Hence, the equations are:

$x = 180 + y$

$x + y = 240$

Solving further;

Substitute 180 + y for x in $x + y = 240$

$180 + y + y = 240$

$180 + 2y = 240$

Solve for 2y

$2y = 240 - 180$

$2y = 60$

Divide through by 2

$y = 30$

Recall that: $x = 180 + y$

$x = 180 + 30$

$x = 210$

Hence:

Full Price = 210

Discounted = 30

3 0

2 years ago

A monk crossbred plants, which can have purple or white flowers, and obtain 769 plants with white flowers and 326 plants with

n200080 [17]

Answer:

The probability that a plant had white flowers is 0.70

Step-by-step explanation:

Given:

Number of plants with white flowers=769

Number of plants with purple flowers= 326

To Find:

The probability that a plant had white flowers is=?

Solution:

Total number of flowers plants = Number of plants with white flower + Number of plants with purple flowers

Total number of flowers plants = 769+ 326

Total number of flowers plants = 1095

Probability that the plant had white flowers = $\frac{769}{1095}$

Probability that the plant had white flowers =0.70

Probability that the plant had purple flowers = $\frac{326}{1095}$

Probability that the plant had purple flowers = 0.29

4 0

2 years ago

The current (I) varies directly as the voltage (V) in an electric circuit. If the current is 4 amperes when the voltage is 100 v

Margarita [4]

$\bf \begin{array}{cccccclllll}
\textit{something}&&\textit{varies directly to}&&\textit{something else}\\ \quad \\
\textit{something}&=&{{ \textit{some value}}}&\cdot &\textit{something else}\\ \quad \\
y&=&{{ k}}&\cdot&x
\\
&& y={{ k }}x
\end{array}\\\\
-----------------------------\\\\$

$\bf \textit{l varies directly to V}\implies l=kV
\\\\\\
\textit{now, we also know that }
\begin{cases}
l=4\\
V=100
\end{cases}\implies 4=k100
\\\\\\
\cfrac{4}{100}=k\implies \cfrac{1}{25}=k\impliedby \textit{constant of variation}
\\\\\\
thus\implies l=\cfrac{1}{25}V
\\\\\\
\textit{what is the current when the voltage is 75?}\qquad l=\cfrac{1}{25}\cdot 75$

6 0

3 years ago

Which graph represents the equation y= 1/2x -3

Luba_88 [7]

Answer:

this graph is the answer to the equation

Step-by-step explanation:

8 0

3 years ago