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Varvara68 [4.7K]
3 years ago
6

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
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