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3 years ago

How can Brady use fraction strips to show that 3÷4 and 7÷8 are not equivalent

Mathematics

1 answer:

kolbaska11 [484]3 years ago

6 0

Brady can draw 2 rectangular boxes, both the same size and shape, break the top one up into 4 parts and color in 3 of the 4 boxes, this represents the fraction 3/4. Break the second box up into 8 parts and color in 7 of them. You will see that 7/8 is more than 3/4.

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Three times the difference between t and y

7nadin3 [17]

3(t-y) = 3t - 3y <===

7 0

3 years ago

The value of good wine increases with age. Thus, if you are a wine dealer, you have the problem of deciding whether to sell your

Katyanochek1 [597]

Answer: 64 years

Step-by-step explanation:

Let assume the dealer sold the bottle now for $P, then invested that money at 5% interest. The return would be:

R1 = P(1.05)^t,

This means that after t years, the dealer would have the total amount of:

$P×1.05^t.

If the dealer prefer to wait for t years from now to sell the bottle of wine, then he will get the return of:

R2 = $P(1 + 20).

The value of t which will make both returns equal, will be;

R1 = R2.

P×1.05^t = P(1+20)

P will cancel out

1.05^t = 21

Log both sides

Log1.05^t = Log21

tLog1.05 = Log21

t = Log21/Log1.05

t = 64 years

The best time to sell the wine is therefore 64years from now.

7 0

3 years ago

Someone help me this is due tm

grandymaker [24]

Answer:a I think although I’m really tired

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

What is the y-intercept of the graph with equation f(x) = 4x^2 - 10x + 7 ?

Nutka1998 [239]

Answer:

The y intercept to this problem is;

(0,7)

Explanation:

To find the x-intercept, substitute in 0 for y and solve for x . To find the y-intercept, substitute in 0 for x and solve for y .

4 0

3 years ago

A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan is to randomly select and tes

Pavel [41]

Answer:

0.818

Step-by-step explanation:

Since the shipment has a ton of aspirin tablets, we can assume that we pick 13 of them with reposition, because the probability shoudn't change dramatically from the probability of picking without reposition if we do so.

We call D the amount of defective tablets. If we assume that we pick the tablets with reposition, then we obtain that D is a random variable of Binomial distribution with parameters 13 and 0.6 (the probability of picking a defective tablet).

We want D to be at most one. To calculate the probability of that event we add up the probability of D being equal to 0 and the probability of D being equal to one. Since D is binomial, we have

$P(D = 0) = (1-0.06)^{13} = 0.447$
$P(D = 1) = {13 \choose 1} * 0.06^1 * (1-0.06)^{12} = 13*0.06*0.94^{12} = 0.371$

We conclude that

$P(D \leq 1) = P(D = 0) + P(D = 1) = 0.447+0.371 = 0.818$

Hence, the shipment will be accepted with probability 0.818

I hope this helps you!

6 0

3 years ago