Mrs. Smith bought 4 dozen doughnuts and paid a total of $13.92. What was the cost of 1 doughout
. A. $0.29
B. $3.48
C. $0.35
D. $1.16

Answer:

1.=8.1

2.=10.4

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

try to graph the points on a graph or on a graphing calculator,

heres an image:

Answer:

Step-by-step explanation:

...

Answer:

b) time to finish the race

c) score on science test

Step-by-step explanation:

Answer:

converting to minutes

Step-by-step explanation:

3*60+20+40+2.75*60=405 min = 6 hours 45 minutes

Answer:

6 hours and 45 minutes

Step-by-step explanation:

2.75 hours = 2 hours and 45 minutes

3 hours 20 minutes

0 hours 40 minutes

2 hours 45 minutes

5 hours 105 minutes

6 hours 45 minutes

Answer:

(0,-5) because is there when the line cross

Answer:

i think it's square foot of4

Answer:

x + y + 1

or

xy + y² + 2

or

x² + y² - 1

or

a²b + b³ + 3

Step-by-step explanation:

You can use x and y as the two variables. Then add them to make is x + y (this is already two variables and two terms). Add a constant, say 1. So x + y + 1, now we have three terms with two different variables and one constant.

Or you can also make it xy + y² + 2 or x² + y² - 1 by adding exponents to each of the variable.

You can choose one from the above or you can make your own (it depends on you).

Answer:

Pretty sure it's one solution

Step-by-step explanation:

Answer:

An infinite number of solutions.

Step-by-step explanation:

Whenever lines overlap each other, it means they have an infinite number of solutions.

Answer:

B A A B A

Step-by-step explanation:

Answer:

28 short race volunteers

76 long race volunteers

Step-by-step explanation:

Let :

Short races = a

Long races = b

LAST YEAR:

7a + 8b = 804 - - - - (1)

THIS YEAR:

11a + 5b = 688 - - - (2)

Multiply (1) by 5 and (2) by 8

35a + 40b = 4020

88a + 40b = 5504

Subtract

-53a = - 1484

a = 1484 / 53

a = 28

Put a = 28 in equation (1)

7(28) + 8b = 804

196 + 8b = 804

8b = 804 - 196

8b = 608

b = 76

28 short race volunteers

76 long race volunteers

Answer:

B < 400/10

Step-by-step explanation:

The volume of a cylinder is the Area of the base (B) times the height

V(c)  =  B*h           h 0 10 in       then    V(c)  =  10*B

if volume as problem statement is less than 400 in³ then the inequality is:

10*B < 400

B < 400/10

hope this helps!

Answer:

b

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation:

15+17+5x = 47

if you add 15 and 17 just to make it easier, you get....

32+5x = 47

what I did next was minus 32 from each side.

so you are left with....

5x = 15

divide each side by 5 and you get

x = 3

you can go back and make sure that- that is right by doing 15+17=32 and

5x3 = 15 then add them together, 32+15 = 47

Answer:

The margin of error for a 96% confidence interval is of 0.0114 = 1.14%.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

The margin of error is given by:

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

For this problem, we have that:

[tex]n = 400, p = \frac{395}{400} = 0.9875[/tex]

96% confidence level

So [tex]\alpha = 0.04[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.04}{2} = 0.98[/tex], so [tex]Z = 2.056[/tex].

Calculate the margin of error for a 96% confidence interval.

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

[tex]M = 2.056\sqrt{\frac{0.9875(0.0125)}{400}}[/tex]

[tex]M = 0.0114[/tex]

The margin of error for a 96% confidence interval is of 0.0114 = 1.14%.

Answer:

Step-by-step explanation:

d-4=19d=15

We move all terms to the left:

d-4-(19d)=0

We add all the numbers together, and all the variables

-18d-4=0

We move all terms containing d to the left, all other terms to the right

-18d=4

d=4/-18

d=-2/9

Answer:  x = 32°

Step-by-step explanation:

(3x - 4) + (3x - 8) = 180

3x - 4 + 3x - 8 = 180

6x - 12 = 180

6x - 12 + 12 = 180 + 12

6x = 192

6x ÷ 6 = 192 ÷6

x = 32

Your answer would be C

Step-by-step explanation:

Answer: The answer is B

Step-by-step explanation this is the answer because when you write a number line vertically then it's oriented from top to bottom

Answer:

6(7x57)

Step-by-step explanation:

Answer:

490

Step-by-step explanation:

19.6

25

980

3920

4900

then add the decimal

490.0

Answer:

B. m - 2 = 28

Step-by-step explanation:

minutes it took Teri to run the race = m

Julie runs 2 mins faster than Teri and is expressed as m - 2 = 28 mins

Equation that can be used is:

m - 2 = 28

Minimum number of tents are 11.

Here,

32 athletes are going camping for the weekend.

3 athletes can sleep in one tent.

We have to find the minimum number of tents.

What is Number system?

A system of writing to express number is called Number system.

Now,

Number of athletes = 32

Number of athletes in one tent = 3

Hence, Minimum number of tents = 32 ÷ 3

We get 11 tents for 32 athletes.

Therefore, Minimum number of tents are 11.

Learn more about the number system visit:

https://brainly.com/question/19460684

#SPJ2

Answer:

A.She used the incorrect inverse operation.

Step-by-step explanation:

Hopefully it is help

Answer:

752

Step-by-step explanation:

752 are the only digits that when put together, round to 800.

Answer:

1 second = 6.4 feet

25 seconds = 6.4 * 25 = 160 feet

Answer:

160ft

Step-by-step explanation:

So we already know the unit rate, all we need to do is find how many times the fly can go 6.4 feet in 25 seconds, so our equation is:

25 x 6.4 = 160

So our housefly can fly 160 feet in 25 seconds

Answer:

an individual's financial irresponsibility may affect them

Answer:

An individual’s financial irresponsibility may affect the community

Step-by-step explanation:

Answer:

total pay $2,750.00

Step-by-step explanation:

first multiply. 03×75,000= $2250.00 (thats how mich commission she has made

then add 500 be she exceeded the 2000 amount

2250+500= $2,750.00

Answer:

x > 7

Step-by-step explanation:

2x - 8 > 6

2x > 6 + 8

2x > 14

x > 7