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3 years ago

HELP! 10 minutes!!!!!

Mathematics

2 answers:

kondor19780726 [428]3 years ago

7 0

Answer:

1/5 = 3 x a

Step-by-step explanation:

If a were the subject,

a = 1/5 ÷ 3

a = 1/5 x 1/3

a = 1/15

kotykmax [81]3 years ago

4 0

Answer:

this one 1/5 = 3 x a

Step-by-step explanation:

1/5 =3×a (divied both side by 3)

a= 1/5 ÷3

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5/6 – 6/12<br><br>I am lost bc I'm not a math person so pls help me?

vovangra [49]

First, we must find the common denominator (12) ✵

10/12-6/12 ✵ ✵ ✵ ✵

Now, why 10? ✵ ✵ ✵

Because we CAN'T just take the denominator and change it; we must change both the denominator AND the numerator:

✵ • - ○

4/12 ✧ ✩ ✶ ✺ ✱

We can simplify, or reduce, this fraction: ✱ ✱

1/3 ✩ ✦ ✤

I hope it helps!

$*VirtuosoTeen*$

7 0

3 years ago

Read 2 more answers

Are snow days a thing of the past or do they still have a place in today's world? Answer whether or not you believe the Mayor an

Aleksandr [31]

Answer:

I feel it is unfair to kids of today to require work in bad weather. Especially in harsh and even dangerous weather conditions. For me what if power goes out should I be required to do work?

5 0

2 years ago

There are three marbles in a bag. One is red and two are black. What is the probability of picking a black marble first, putting

Maru [420]

Answer:

well for me I think

Step-by-step explanation:

2/3×2/3

4/9

since they are replacing the black marbles back

6 0

3 years ago

Margie is standing on a bridge looking at the river below. She throws a rock over the bridge with an initial

Marina CMI [18]

<h2>Explanation:</h2><h2></h2>

Here we know that Margie is standing on a bridge looking at the river. She throws a rock over the bridge with an initial velocity of 60 ft/sec. The height, h, of the rock at the rime t seconds after it was thrown can be modeled by the equation:

$h(t) = -16t^2+60t+72$

To calculate how long will it take for the rock to reach the surface of the water, we need to set $h(t)=0$ . So:

$0 = -16t^2+60t+72 \\ \\ \\ \text{Using quadratic formula}: \\ \\ t=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \\ \\ \\ a=-16 \\ \\ b=60 \\ \\ c=72 \\ \\ \\ t=\frac{-60 \pm \sqrt{60^2-4(-16)(72)}}{2(-16)} \\ \\ t=\frac{-60 \pm \sqrt{60^2-4(-16)(72)}}{2(-16)} \\ \\ t=\frac{-60 \pm \sqrt{8208}}{-32} \\ \\ t_{1}=4.70 \\ \\ t_{2}=-0.95$

Given that time can't be negative, we just choose the positive value. Therefore, <em>it will take 4.70 seconds for the rock to reach the surface water.</em>

6 0

3 years ago

In the binomial probability formula, the variable x represents the _______. In the binomial probability formula, the variable

wolverine [178]

Answer: Option 'A' is correct.

Step-by-step explanation:

In the binomial probability formula, we have

$P(X=x)=^nC_xp^{x}q^{n-x}$

Here, n = number of events

x = number of trials

p = probability of success

q = probability of failure

x is the number of trials among which we decide the number of successes and number of failures.

So, Option 'A' is correct.

8 0

3 years ago