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3 years ago

9

A deck builder uses 11 bags of concrete mix for every 5 deck footings. If the builder needs to build 12 deck footings, how many

bags of concrete mix will be used?

1 answer:

juin [17]3 years ago

5 0

I think it is 220 bags but i am stuipd

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How many times does 56 go into 432

larisa [96]

7.714, if you divide 432 by 56, you get 7.714

7 0

3 years ago

Which of the following illustrates the truth value of the given conditional statement if 6*3=18, then 4+8=20

denis-greek [22]

Conditional statement represents two statements, the "p" and the "q". Where p is the hypothesis and q is the conclusion.

The table of conditional statement:
(p) (q) (p -> q)
T T T
T F F
F T T
F F F

As shown on the table, (p -> q) can only be false if the "p statement" is true while the "q statement" is false.

The given states that, "If 6*3 = 18, then 8+4 = 20",
set p: 6*3 = 18
q: 8+4 = 20

Since p is true and q is false, then the truth value (p->q) is false.

7 0

3 years ago

Read 2 more answers

The following random sample from a population whose values were normally distributed was collected.10 8 11 11The 95% confidence

Margaret [11]

Answer:

Answer:

B

Step-by-step explanation:

First to find the sample mean

Xbar= summation x/n= 40/4= 10

The sample standard deviation is:

S= √summation(x-xbar)²/ n-1

=√6/3= 1.4142

The degrees of freedom

df= N-1= 4-1= 3

For 95% confidence level, critical value of t

t= 3.182

The 95% confidence interval is:

=Xbar plus or minus t' *8/√n

= 10 plus or minus 3.182(1.4142/√4)

= 10plus or minus 2.25

So 7.75 or 12.25

6 0

4 years ago

Are the following triangles similar? Justify your answer.

Readme [11.4K]

if the triangles are indeed similar, then their corresponding sides will yield the same proportion or ratio, let's check, △MDC has 3 sides, a small one a medium and a large, same is true for △LON, so let's use hmmm say the small side of each and the medium side of each, to see if their ratio matches. Check the picture below.

6 0

3 years ago

Suppose the value of a car depreciates 8% every year. To the nearest dollar, what will a car that cost $23,995 be worth after 5

Vanyuwa [196]

Answer:

<em>The car will worth $15815 after 5 years.</em>

Step-by-step explanation:

The formula is: $A=P(1+r)^t$ , where P = Initial cost, A = Final cost, r = Rate of change in cost per year and t = Number of years.

Here, $P= 23995, t= 5$

and $r= 8\%=0.08$

As here the <u>value of the car depreciates every year, so we need to plug the value of $r$ as negative</u>. So, $r=-0.08$

Now plugging the above values into the formula, we will get.....

$A=23995(1-0.08)^5\\ \\ A=23995(0.92)^5\\ \\ A=15814.6611... \approx 15815$

<em>(Rounded to the nearest dollar)</em>

So, the car will worth $15815 after 5 years.

8 0

3 years ago