Evaluate. 6[5(3-9)-1]+2 the answer of this divided by the answer of this one 7(8-2)+4

Mathematics

1 answer:

Snowcat [4.5K]2 years ago

6 0

According to PEMDAS, these are the steps for evaluating this equation -

3-9=-6

-6 x 5 = -30 - 1 = -31

-31 x 6 = -186, + 2 = -184

Now our first answer is -184 (I think this is correct)

Next thing we'll do is the second equation

8-2 = 6

6 x 7 = 42

42 + 4 = 46

Now, we can divide :) -184 / 46 equals -4

Hope this helps :D!

You might be interested in

5.378 E9. what is this number in standard form?

inna [77]

5.378 E9 = 5.378 × 10⁹ = 5,378,000,000

7 0

3 years ago

Read 2 more answers

Men's socks. Cost $8.00 for a package of three. How much would two dozen socks cost ?

weeeeeb [17]

1 dozen = 12

12 x 2 = 24

8/3 = x/24
3x=192
x=64

two dozen socks would cost $64

4 0

2 years ago

A bacteria culture initially contains 100 cells and grows at a rate proportional to its size. After an hour the population has i

bija089 [108]

Answer: $\bold{a)\ P(t)=P_o\cdot e^{t\cdot ln(2.7)}}$

b) 5314

c) ln 2.7

d) 4.6 hrs

<u>Step-by-step explanation:</u>

$P(t) = P_o\cdot e^{kt}\\\\\bullet \text{P(t) is the number of bacteria after t hours} \\\bullet P_o\text{ is the initial number of bacteria}\\\bullet \text{k is the rate of growth}\\\bullet \text{t is the time (in hours)}\\\\\\270=100\cdot e^{k(1)}\\2.7=e^k\\ln\ 2.7=\ln e^k\\\boxed{ln\ 2.7=k}\\\\\text{So the equation to find the number of bacteria is: }\boxed{P(t)=P_o\cdot e^{t\cdot ln(2.7)}}\\\\\\P(4)=100\cdot e^{4\cdot ln(2.7)}\\.\qquad =\boxed{5314}$

$10,000=100\cdot e^{t\cdot ln(2.7)}\\100=e^{t\cdot ln(2.7)}\\ln\ 100=ln\ e^{t\cdot ln(2.7)}\\ln\ 100=t\cdot ln(2.7)\\\dfrac{ln\ 100}{ln\ 2.7}=t\\\\\boxed{4.6=t}$