3 years ago

Help Quickly Please!

Mathematics

2 answers:

uranmaximum [27]3 years ago

7 0

Answer:

Step-by-step explanation:

turn 3/8 into a decimal, .375, then multiply by 48

kari74 [83]3 years ago

3 0

Answer:

you can simplify this question by making 48 48 over 1, and multiplying it by 3 over 8, the answer is 18

Step-by-step explanation:

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fred has a bad containing 2 red, 8 blue, 5 green, and 10 white marbles that are all the same size and shape. what is the probabi

Pepsi [2]

Answer:

50%

Step-by-step explanation:

There are a total of 20 marbles.

10/20 equal 50%

5 0

3 years ago

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Ethan spent 12.5% of the money in his pocket on dinner. His dinner cost $15.25. How much did he have in his pocket? Group of ans

Tju [1.3M]

Answer:

$122

Step-by-step explanation:

Let total money in his pocket = $ x

12.5% of x = $ 15.25

$\frac{12.5}{100}*x= 15.25$

Multiply both sides by 100

12.5 *x = 15.25*100

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Divide both sides by 125.5

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8 0

3 years ago

Select the two values of x that are roots of this equation. 2x+11x+15= 0

Amiraneli [1.4K]

Answer:

The roots of the equation are x=-3 and x=-2.5

Step-by-step explanation:

The correct quadratic equation is

2x^2+11x+15=0

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$2x^{2} +11x+15=0$

$a=2\\b=11\\c=15$

substitute in the formula

$x=\frac{-11(+/-)\sqrt{11^{2}-4(2)(15)}} {2(2)}$

$x=\frac{-11(+/-)\sqrt{121-120}} {4}$

$x=\frac{-11(+/-)\sqrt{1}} {4}$

$x=\frac{-11(+/-)1} {4}$

$x_1=\frac{-11(+)1}{4}=-2.5$

$x_2=\frac{-11(-)1}{4}=-3$

therefore

The roots of the equation are x=-3 and x=-2.5

5 0

3 years ago

Is -5 a solution to the equation 6x+5=5x+8+2x

SVETLANKA909090 [29]

6x+5=5x+8+2x
Add 2x to 5x
6x+5=7x+8
Subtract 6x from both sides
5=x+8
Subtract 8 from both sides
Final Answer: -3=x

And so no, -5 is not the solution to this equation.

7 0

3 years ago

If you roll a fair die twice, what is the probability of getting an even number at least once? the answer is 0.75 is it right

lozanna [386]

No it should be a 50% chance because the first roll is a independent variable, 6/12=1/2

7 0

4 years ago

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