What is 1/4 divided by 2

Answers

Answer 1

Answer: it is simple actually the answer is 1/8

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What is the area of the rectangle? Round to the nearest square inch.A.
27 in2

B.
31 in2

C.
45 in2

D.
47 in2

Answers

The area of a rectangle is expressed the product of its length and its width. For this rectangle we are given only its width and its diagonal. Thus, we need to solve for its length. A diagonal is a line that divides the rectangle making two right triangles. We can solve its length by using the diagonal. Calculations are as follows:

cos 45 = Length / 8
Length = 4√2 in

Area = (4√2)(5) = 20√2 in

Can you please help me on problem 4 and 5 of my teacher created problem.

Answers

4. Area of a disk of diameter D : $A= \pi*(D/2)^2\approx3.14*(3.5)^2=38.465$

Assuming that you use the usual convention of rouding 5 to the greater number :

A=38.47

5. Diameter of a circle of radius r : $A= \pi D=47$ hence $D\approx47/3.14\approx14.97$

30 pts Johnna is cooking a roast that says, "Cook to 160°F." What is the Celsius equivalent of this temperature? A) 65° B) 71° C) 81° D) 91°

Answers

B) 71 degrees celcius

You can use this equation to convert from Fahrenheit to Celsius:

C=(F-32)*(5/9)
C=Celsius degrees
F=Fahrenheit degrees

Just plug in 160 for F and solve for C
C=(160-32)*(5/9)
C=128*(5/9)
C=71.11° repeating

Hope this helps

An insulated cooler holds 184 ounces of lemonade. How many full 12.4 ounce glasses of lemonade can be poured from the cooler?I'm assuming its 184 divided by 12.4

Answers

You're right, that's the required operation.
$(184)/(12.4)=15.08$
Because they want to know how many glasses can be full, the answer is 15.

Yes, you are right divide 184/12.4 = 14.8 . In this case you will round up because the number after the decimal point is more than five. Your answer will be 15 glasses.

Helpp!! :Edith babysits for x hours a week after school at a job that pays $4 an hour. She has accepted a job that pays $7 an hour as a library assistantworking y hours a week. She will work both jobs. She is able to work no more than 16 hours a week, due to school commitments. Edith wants to earn at least $80 a week, working a combination of both jobs.
write an inequality to represent this,and please solve for y
WORTH 22 POINTSSSSSS

Answers

so pay=hours times pay per hour

so the babysitting job pays 4 dollers pay per hour
she works x hours
therefor the babysitting pay is 4 times x or 4x

the library job pays 7 dollars an hour
she works y hurs
therefor the library pay is 7 times y or 7y

so total pay is babysitting pay plus library pay or
4x+7y=total pay
x+y=total hours

she wants to work no more than 16 hour s aweek, means that she can work max 16 hours or
total hours<16
subsitute
x+y<16

and she wants to earn at least 80 dolars
so more than or equal to 80 dolllars
total pay >80
subsitue
4x+7y>80

so the inequalities we have are
x+y<16 and
4x+7y>80

solve for y since we want to do that
multiply the first equatl by -4
remember tha tmultipy by negative means flip sign from < to > so
-4x-4y>-64
now add to the second equation

-4x-4y>-64
4x+7y>80 +
0x+3y>16
3y>16
divide by 3
y>16/3
16/3=5 and 1/3

so she has to work more than 5 and 1/3 hours per week

basically, she will earn at least 80 dollars a week if she works at least 5 and 1/3 hours at the library and works for 16 hours total (library+babysitting)

what you should do is find the graph of the lines
x+y<16 and 4x+7y>80 and find where they intersect

the inequaltiy is 4x+7y>80 and x+y<16

4x plus 7y, this shows how much she works....

You get 15 out of 24 questions correct on a math test. The lowest score to pass is a 70%. Did you pass, yes or no?

Answers

No. This is because 15/29 is .625 which is 62.5%.

15 divide 24 is 0.625 which is 62.5%
so didn't pass.

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