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4 years ago

Pls help i hate these problems: x-12%=33

Mathematics

2 answers:

MaRussiya [10]4 years ago

5 0

Answer:

33.12

Step-by-step explanation:

V125BC [204]4 years ago

5 0

The answer is 22 i hope it is

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Caden states that n^2 +3n + 2n is an equivalent expression to 6n. Why is Caden's statement incorrect?

malfutka [58]

$\begin{gathered} \text{The simplification of n}^2+3n+2n\text{ is:} \\ i)n^2+5n \\ By\text{ collecting common term, this can be written in form of:} \\ ii)\text{ n(n+5)} \end{gathered}$

Thus, options A and D hold, from the simplifications above.

Let's consider the validity of the remaining options provided.

$\begin{gathered} \text{For option B)} \\ \text{substitute for n=1 into the expression n}^2+3n+2n,\text{ we have} \\ 1^2+3(1)+2(1)=1+3+2=6 \\ \text{substitute for n=1 into the expression 6n, we have} \\ 6(1)=6 \\ \text{Thus, the expression n}^2+3n+2n\text{ is equivalent to 6n, for n=1} \end{gathered}$ $\begin{gathered} \text{For option C)} \\ \text{The expression n}^2+3n+2n\text{ does not simplify to 7n} \end{gathered}$ $\begin{gathered} \text{For option E)} \\ \text{substitute for n=4 into the expression n}^2+3n+2n,\text{ we have:} \\ 4^2+3(4)+2(4)=16+12+8=36 \\ \text{substitute for n=6 into the expression 6n, we have:} \\ 6(4)=24 \\ \text{Thus, the two(2) expressions are not equivalent to each other, for n=4} \end{gathered}$ $\begin{gathered} \text{For option F)} \\ \text{substitute for n=3 into the expression n}^2+3n+2n,\text{ we have:} \\ 3^2+3(3)+2(3)=9+9+6=24 \\ \text{substitute for n=3 into the expression 6n, we have:} \\ 6(3)=18 \\ \text{Thus, the two(2) expressions are not equivalent to each other, for n=3} \end{gathered}$

Hence, the correct options that apply are options A, D, E and F

7 0

1 year ago

At cooking school, Jamie's recipes turn out disastrous 1 out of every 4 times. If Jamie makes 32 dishes, how many will be a disa

Nostrana [21]

Answer:

8 disasters

Step-by-step explanation:

We can write a proportion to solve this

1 disaster x disaster

---------------- = ------------------

4 tries 32 tries

Using cross products

1*32 = 4x

32 = 4x

Divide by 4

32/4 = 4x/4

8 =x

7 0

3 years ago

Read 2 more answers

Assume that the random variable X is normally distributed, with mean μ = 110 and standard deviation σ = 20. Compute the probabil

kogti [31]

Answer:

P(X > 126) = 0.2119

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 110, \sigma = 20$

P(X > 126) is the 1 subtracted by the pvalue of Z when X = 126. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{126 - 110}{20}$

[tez]Z = 0.8[/tex]

[tez]Z = 0.8[/tex] has a pvalue of 0.7881.

P(X > 126) = 1 - 0.7881 = 0.2119

5 0

4 years ago

When he was measuring herbs on his scale,Neville place 1/2 gram weight,then 1/5 gram weight, and finally 1/8 gram before the sca

shtirl [24]

So basically the question just wants you to add fractions so we set up the problem like this
1/2+1/5+1/8=weight of herbs=x (x signifies an unknown number)

so we have to get the bottom numbers the same before we can add them so we have to find the smallest number that they all can multiply into
so
   2=2
   5=5
   8=2*2*2
   so the smallest number that that will go into all three of the numbers is
   2*2*2*5 =40
so the bottom number will be 40
so 1/2 is equal to 20/40
1/5=8/40
1/8=5/40
so 20/40+8/40+5/40=33/40
answer is 33/40 grams
so

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3 years ago

During a 12-hour car ride, each of 4 family members gets to choose the music for an equal amount of time. Write an equation, whe

Alecsey [184]

T=12/4
If you need to split it equally just divide the whole by the amount of parts you need

7 0

3 years ago