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Stels [109]
2 years ago
14

Evaluate the expression 2 4/5+1/2

Mathematics
2 answers:
goldenfox [79]2 years ago
7 0

Answer:

3 3/10

Explanation:

2 4/5 + 1/2           [change 2 4/5 to an improper fraction]

14/5 + 1/2             [make both fractions have a common denominator]

28/10 + 5/10         [add the numerators, leave the denominator the same]

33/10                    [change back into mixed number]

3 3/10

sukhopar [10]2 years ago
5 0

Answer:

3 3/10

Step-by-step explanation:

Step 1: Convert 2 4/5 to improper

2 4/5 = 14/5

Step 2: Rewrite

14/5 + 1/2

Step 3: Find common denominator

14/5(2/2) + 1/2(5/5)

28/10 + 5/10

Step 4: Add

33/10

Step 5: Simplify

3 3/10

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a suit is being sold at a 20 % off (discount). The sale price is $ 270. What was the original price ?
Lisa [10]

Answer:

The original price is 337.50

Step-by-step explanation:

If we get 20% off, we still have to pay 100-20 =80%

Let x be the original price

x *80% = 270

.80x = 270

Divide each side by .80

.80x/.80 = 270/.80

x =337.50

The original price is 337.50

5 0
3 years ago
Read 2 more answers
Help me out please, im only typing this much because its making me...
Genrish500 [490]

Answer:

B.x^{2} +2x-8

Step-by-step explanation:

Here the best method to solve is by substituting the end values of the set in each option , otherwise it will a time consuming problem.

Now substitute x=-4 in all the options

A.x^{2} -2x-8

16+8-8=16>0

so out of option A and C option C is correct.

B.x^{2} +2x-8

16-8-8=0 which means for the values of x>-4 x^{2} +2x-8is less than 0

Now substitute x=2 in all the options

A.x^{2} -2x-8

4-4-8=-8<0 . so option A and C both are incorrect.

B.x^{2} +2x-8

4+4-8=0 which means for the values of x<2 x^{2} +2x-8 is less than 0

Therefore the correct option is B

6 0
3 years ago
Difference between compounded annually, monthly and daily.
zvonat [6]

Answer:

With monthly compounding, the bank will calculate interest on your account just once per month. It will not update your balance on a daily basis when it calculates how much interest it owes you. Assuming that the APR is the same, accounts with monthly compounding offer a lower APY than accounts with daily compounding.

5 0
2 years ago
A book exhibition was held for four days in a schoolthe number of tickets sold at the counter on the first secend third and four
bija089 [108]

Answer:

7707 tickets

Step-by-step explanation:

From the question we know that:

the number of tickets sold at the counter on

First day = 1094 tickets

Second day = 1812 tickets

Third day = 2050 tickets

Fourth day = 2751 tickets

The total number of tickets sold on all the four days is calculated as:

(1094 + 1812 + 2050 + 2751)tickets

= 7707 tickets

7 0
3 years ago
rosa correctly solved 275 divided by 5.enter numbers in boxes to show the equations she could use to solve the problem
kifflom [539]

Answer:

The first step would be to look at the first two numbers (which is 27) and estimate which <u>multiple</u> of 5 is closest and <u>below</u> 27.

5*5 = 25

So once she got 25, she will need to subtract 27-25, which will give her 2. REMEMBER: 5 is the first number of the quotient.

Now, she will need to drag the last digit left of 275 (which is 5) to the remainder 2 and think what multiple of 5 will give her the answer 25.

Again, 5*5 = 25

Once again, her numbers on the quotient will be 55. That's the answer.

6 0
3 years ago
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