All categories

3 years ago

2 1/2 divided by 2 1/3

Mathematics

2 answers:

crimeas [40]3 years ago

6 0

Answer:

1 $\frac{1}{14}$

Step-by-step explanation:

Turn the mixed fractions into improper fractions:

2 1/2 = 5/2

2 1/3 = 7/3

5/2 ÷ 7/3

Replace the division sign with a multiplication sign by reciprocating 7/3.

5/2 × 3/7

Multiply the numerators and the denominators.

= 15/14

Simplify 15/14 by turning it into a mixed fraction.

1 $\frac{1}{14}$

I hope this helps!

horsena [70]3 years ago

4 0

Answer:

Exact Form: 15/2

Decimal Form: 7.5

Mixed Number Form: 7 1/2

Step-by-step explanation:

You might be interested in

A doctor can prescribe one of two drugs to treat a certain disease. Drug A will cure 75% of the cases but has unwanted side effe

Phoenix [80]

The total number of patients experienced unwanted side effects is 48

Explanation

60 patients are given drug A and drug A has unwanted side effects in 40% of the cases.

So, the number of patients experienced side effects for drug A = 40% of 60 $=(0.40*60)= 24$

Now 80 patients are given drug B and it has side effects in 30% of the cases.

So, the number of patients experienced side effects for drug B = 30% of 80 $=(0.30*80)= 24$

So, the total number of patients experienced unwanted side effects $= 24+24 =48$

3 0

4 years ago

Read 2 more answers

2. Solve x2 + 2x + 7 = 0 using the Quadratic Formula

pantera1 [17]

Answer:

x=7/4

Step-by-step explanation:

4x=-7=4x/-4=-7/-4= x=7/4

5 0

2 years ago

Read 2 more answers

A psychology professor assigns letter grades on a test according to the following scheme. A: Top 7% of scores B: Scores below th

NISA [10]

Answer:

The minimum score required for an A grade is 89.8.

Step-by-step explanation:

We are given that a psychology professor assigns letter grades on a test according to the following scheme. A : Top 7% of scores. B : Scores below the top 7% and above the bottom 64%. C : Scores below the top 36% and above the bottom 25%. D : Scores below the top 75% and above the bottom 6%. F : Bottom 6% of scores.

Scores on the test are normally distributed with a mean of 78.4 and a standard deviation of 7.6.

Let X = Scores on the test

SO, X ~ Normal( $\mu=78.4,\sigma^{2} =7.6^{2}$ )

The z-score probability distribution for normal distribution is given by;

Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)

where, $\mu$ = mean time = 78.4

$\sigma$ = standard deviation = 7.6

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) 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.

Now, the minimum score required for an A grade so that it represents Top 7% of scores is given by;

P(X $\geq$ x) = 0.07 {where x is the required minimum score

P( $\frac{X-\mu}{\sigma}$ $\geq$ $\frac{x-78.4}{7.6}$ ) = 0.07

P(Z $\geq$ $\frac{x-78.4}{7.6}$ ) = 0.07

So, the critical value of x in the z table which represents the top 7% of the area is given as 1.4996, that is;

$\frac{x-78.4}{7.6} =1.4996$

${x-78.4}{} =1.4996\times 7.6$

$x$ = 78.4 + 11.39696 = 89.8 or 90

Hence, the minimum score required for an A grade is 89.8.

8 0

3 years ago

A stand at the farmers market sells different types of apples, as shown in the table.

goldfiish [28.3K]

The apple that costs the least per pound is Apple B.

<h3>What is the least cost?</h3>

The cost per pound for each apple will be calculated as:

= Cost / Weight

Apple A:

= Cost / Weight

= 4.90 / 4

= $1.25 per pound

Apple B:

= Cost / Weight

= $1 / 10

= $0.1 per pound

Apple C:

Cost / Weight

= $0.45 / 0.5

= $0.9 per pound

Therefore, apple B is the cheapest

Learn more about cost on:

brainly.com/question/25109150

#SPJ1

7 0

1 year ago

How do you solve the following equation : X/-3 + 2=4

goblinko [34]

Answer:

For this equation you be inverse operation giving you the answer -6

further information down below :)

Step-by-step explanation:

Your goal for this is to isolate the variable which is x.

First, find the operation opposite of addition which is subtraction

When you add that operation to both sides with the constant(2)

2 and 2 cancel each other out, but to the for the term(4) 4-2=2

after that you have your new term which is x/-3=2

You do the same thing but to in division because the opposite of multiplication is division in this case you multiply -3 to both sides -3*-3 cancel each other out, now you have-3*2= negative times a positive equal negative in anyway so, overall you get -6.

To check:

you do the full equation now that you have isolated the variable, you now can do the operations normally which are. -6/-3=2 because when you divide a negative by a negative you get a positive end out with 2+2=4 which is correct and match the sum.

This means that our answer is correct :)

5 0

3 years ago