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Vsevolod [243]
2 years ago
9

Megan evans has a coupon that saves her $1 when she buys two jars of peanut butter. the peanut butter costs $2.39 per jar. what

is the final price of the two jars? $3.78 $3.98 $3.47 $3.21
Mathematics
1 answer:
iVinArrow [24]2 years ago
8 0
$2.39 * 2 (jars of peanut butter) = $ 4.78. $4.78 - $1 (discount because of the coupon when buying 2 jars of peanut butter) is equal to $3.78. Therefore, the final price of the two jars is $ 3.78.

To simply put -
($2.39 * 2) - $1 = $3.78
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What is another way to write 49*12? 1. 50*10<br> 2. 50*10+2<br> 3. 50*12-12 <br> 4. 50+12-12
Umnica [9.8K]
49×12= 588
1. 50×10=500
2. 50×10+2= 502 
3. 50×12-12= 588
4. 50+12-12=50

Another way to write 49×12 is 50×12-12

4 0
2 years ago
Haala buys 13 identical shirts and 22 identical ties for 363.01.. The cost of a shirt is 15.35. Find the cost of a tie
AlladinOne [14]

Answer:

EACH TIE COSTS 7.43

Step-by-step explanation:

If 13.35x13=173.55 then that means the ties total is 189.46 now devide that by 22 it equals 13.35

4 0
3 years ago
Management at a seaside resort is publishing a brochure and wants to include a statement about the proportion of clear days duri
Ymorist [56]

Answer: B. 264

Step-by-step explanation:

Formula to calculate the sample size 'n' , if the prior estimate of the population proportion (p) is available:

n= p(1-p)(\dfrac{z}{E})^2

, where z = Critical z-value corresponds to the given confidence interval

E=  margin of error

Let p be the population proportion of clear days.

As per given , we have

Prior sample size : n= 150

Number of clear days in that sample = 117

Prior estimate of the population proportion of clear days = p=\dfrac{117}{150}

E= 0.05

The critical z-value corresponding to 95% confidence interval = z*= 1.95 (By z-table)

Then, the required sample size will be :

n= \dfrac{117}{150}(1-\dfrac{117}{150})(\dfrac{1.96}{0.05})^2

Simplify ,

n= (0.1716)(39.2)^2

n= 263.687424\approx264

Hence, the sample size necessary to construct this interval =264

Thus the correct option is B. 264

7 0
3 years ago
Tara has 39 red pens she has to get 125 pens how many more pens does she need?
Crank

Answer: She needs 86 more pens

Step-by-step explanation: She starts off with 39 pens and she needs to get to 125 so you would subtract 39 from 125 and you would find the answer to how many more she needs.

4 0
2 years ago
Read 2 more answers
the length of the base of an isosceles triangle is 12 inches. Each base angle measures 50. which is a feasible plan to find the
kifflom [539]
To get the congruent angles we shall use the sine rule since we have the length of at least 1 side and the values of the angles. 
Base length=12 inches
Base angles=50°
Third angle=180-(100)=80°
thus applying the sine rule we shall have:
a/sin A=b/sin B=c/sin C
thus we can get the congruent side as follows:
a/sin 50= 12/sin 80
a=(12 sin 50)/sin 80
a=9.334 inches
since the sides are congruent then the other congruent side will have a length of 9.334 inches 
3 0
2 years ago
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