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3 years ago

Photo math said the answer was 2x but I’m not sure

Mathematics

1 answer:

Andrews [41]3 years ago

3 0

Yes it is. the parentheses is raised 0 so yeah

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20a + 158 +6c = 20 (6) + 15 (4) + 6(8) + ? + ?

Jobisdone [24]

Step-by-step explanation:

20a + 158+6c=you will expand the brackets

= so it is 120+60+48

20a+158+6c=120+60+48

20a+ 6c=120+60+48-158

20a+6c=70

20a divide by 20+6c divide by 6 on both side

a + c = 0.58

7 0

3 years ago

$813.60 is what percent of $1,800? 221.2% 45.2% 0.452% 2.21%

iragen [17]

I hope this helps you

813,60 = ?%.1800

?/100.1800=813,60

?=813,60/18

?=45,2

5 0

3 years ago

Read 2 more answers

How many kilometers can that tortoise walk in 1 hour

vfiekz [6]

5 kilometers

Jjjjjjkkkk

6 0

3 years ago

At the start of the year, the balance in a married couple’s account is $ 1 , 750 . They decide to each deposit $ 35 into the acc

Dimas [21]

Answer:

f(n) = 1750 + 70n

Step-by-step explanation:

Since, each of them are depositing 35$ each month, they are adding 35x2 = 70$ each month.

So, in n months, they will be adding 70n $ to their account.

Initially, they had 1,750$ in their account. After n months, they should have 1750+70n $ in their account.

So, the function that represents this is, f(n) = 1750 +70n

7 0

3 years ago

PLEASE PLEASE HELP

marta [7]

Answer:

Approximately 3 grams left.

Step-by-step explanation:

We will utilize the standard form of an exponential function, given by:

$f(t)=a(r)^t$

In the case of half-life, our rate r will be 1/2. This is because 1/2 or 50% will be left after t half-lives.

Our initial amount a is 185 grams.

So, by substitution, we have:

$\displaystyle f(t)=185\big(\frac{1}{2}\big)^t$

Where f(t) denotes the amount of grams left after t half-lives.

We want to find the amount left after 6 half-lives. Therefore, t = 6. Then using our function, we acquire:

$\displaystyle f(6)=185\big(\frac{1}{2}\big)^6$

Evaluate:

$\displaystyle f(6)=185\big(\frac{1}{64}\big)\approx2.89\approx 3$

So, after six half-lives, there will be approximately 3 grams left.

3 0

3 years ago