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Mademuasel [1]
3 years ago
9

Beau was shopping for Valentines Day present. He bought her a box of chocolate for $12.49 and six balloons. In total Beau spent

$19.63 for the chocolate and balloons. How much did each balloon cost.
Mathematics
2 answers:
miv72 [106K]3 years ago
7 0

Answer:

48.75

Step-by-step explanation:

All you haft to do really is 3.25 x 15 and you get 48.75, Because she spent 3.25 on each balloon and she has 15 friends. So 15 friends multiplied by 3.25 gets you 48.75 she spent total.

maks197457 [2]3 years ago
3 0

Answer:

48.75

Step-by-step explanation:

it is an easy multiplication problem 3.25 by 15 and then u would get up answer

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Triangle MNO is isosceles. Find the value of y and the measure of Angle O.
Andrews [41]

Answer:

y = 14

Angle O is 41 degrees

Step-by-step explanation:

From the question, since we have an isosceles triangle, then the base angles are equal

This means that the angle at M is (4y-15) too

Mathematically, the sum of the angles in a triangle is 180 degrees

Thus;

7y + 4y-15 + 4y-15 = 180

15y-30 = 180

15y = 180+ 30

15y = 210

y = 210/15

y = 14

Angle O is 4y-15

= 4(14) -15 = 56-15 = 41 degrees

5 0
3 years ago
A data set includes 106 body temperatures of healthy adult humans having a mean of 98.7degreesF and a standard deviation of 0.66
blondinia [14]

Answer:

The 99% confidence intervals are

(98.4346 , 98.7654)

C) This suggests that the mean body temperature could very possibly be 98.6degrees°F.

<u>Step-by-step explanation:</u>

Given data a data set includes 106 body temperatures of healthy adult humans having a mean of 98.7degreesF and a standard deviation of 0.66degreesF

sample size n = 106

Mean of the population   ' μ' = 98.7degreesF

standard deviation of population 'σ' = 0.66degreesF

Mean of the sample x⁻ = 98.6degreesF

Level of significance ∝ = 0.99 0r 0.01

<u>Confidence limits :-</u>

The values (x^{-} - 2.58\frac{S.D}{\sqrt{n} } ,x^{-} +2.58\frac{S.D}{\sqrt{n} } ) are called 99% of confidence limits

For the mean of the Population corresponding to the given sample.

(98.6 - 2.58\frac{0.66}{\sqrt{106} } ,98.6 +2.58\frac{0.66}{\sqrt{106} } )

on calculation, we get

(98.6 - 0.1654,98.6 + 0.1654)

The 99% confidence intervals are

(98.4346 , 98.7654)

C)<u> This suggests that the mean body temperature could very possibly be 98.6degrees°F</u>.

3 0
3 years ago
Samantha has chocolate bars and lollipops in the the ratio 4:5. If she has 12 chocolate bars,how many lollipops does she have?
labwork [276]
4 • 3 = 12
5 • 3 = 15
she has 15 lollipops
8 0
3 years ago
A regular octagon rotates 360° about its center. How many times does the image of the octagon coincide with the preimage during
True [87]
Hello there!

The correct answer is D. 8.

Hope This Helps You!
Good Luck :)
4 0
3 years ago
What is the value of x in the equation 3x- 4y =65, when y= 4?
Alexus [3.1K]
3x-4y=65

3x=65+4y

x=(65+4y)/3, when y=4

x=(65+4*4)/3

x=(65+16)/3

x=81/3

x=27
3 0
3 years ago
Read 2 more answers
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