In your classroom, a dry erase board is 8 feet long and 4 feet wide. You teacher makes individual dry erase boards for you to use at your desk that are 11.5 inches long and 9.5 inches wide. Are the boards similar?

Answers

Answer 1

Answer:

Both boards are not similar, since the board made by the teacher does not have a ratio of 2:1.

Ratios

Given that in your classroom, a dry erase board is 8 feet long and 4 feet wide, and your teacher makes individual dry erase boards for you to use at your desk that are 11.5 inches long and 9.5 inches wide, to determine if the boards are Similarly, the following calculation must be performed:

8:4 = 2:1
11.5:X = 2.1
11.5 / 2 = 5.75

Therefore, both boards are not similar, since the board made by the teacher does not have a ratio of 2:1.

Learn more about ratios in brainly.com/question/1504221

Answer 2

Answer:

Step-by-step explanation:

The ratio of length to width in the first is 2 : 1 while the ratio of the second is 23 : 19

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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 $D\approx47/3.14\approx14.97$

4y + 16 > –8 solve the Inequalities help plz

Answers

   4y + 16 > -8

Subtract 16 from each side: 4y       > -24

Divide each side by 4 : y        > -6

$4y + 16 \ \textgreater \ -8 \n \n 4y \ \textgreater \ -8 - 16 \n \n 4y \ \textgreater \ -24 \n \n y \ \textgreater \ - (24)/(4) \n \n y \ \textgreater \ -6 \n \n$

The answer is: y > -6.

PLEASE help with these math questions

Answers

Hi there,

No. 1:

$64<68<81\Rightarrow √(64)<√(68)<√(81),\;or\;√(8^2)<√(68)<√(9^2)\Rightarrow\n\n\Rightarrow therefore\;8<√(68)<9.$

The answer is 8.2 ft, for sure.

Having this technique in mind, can you resolve the rest of 4 math questions, by yourself ? It is quite simple, isn't it ?

Green eyes.

to estimate
find the perfect squares above and below the target number
guess
example
sqrt of 99
9^2=81
10^2=100
99 is between 81 and 100, closer to 100 so therefor pick 10.9 or something

1.
if we estimate
8^2=64
that is close to 68
8.2^2 is probably closer sinnce is is bigger than 0.2

therefor the answer is A

2. estimate
12^2=144
13^2=169
148 is betwen 12 and 13
pick B

3. 114
square aera=side^2
10^2=100
11^2=121
see if it is more than 10.5 or less
which is closer 114
100 or 121
121 is closer
therefor we guess that it is greater and therefor we should guess 11 yards

4. area=side^2
196=side^2
luckily we remembered tat 14^2=196
1 side=14 ft
perimiter=4side
P=4*14=56 ft

5.
area=side^2
480=side^2
sqrt both sides
√480=√16√30=4√30
aprox sqrt 30
between 5 and 6, lookks like in middle
aprox 5.5
4*5.5
perimiter is times 4
4*4*5.5=16*5.5=80+8=88 feet
answer is D

12 T=______________lb

Answers

There are 2000 pounds in one ton, so to find the amount of pounds in a set amount of tons, all we need to do is multiply the amount of tons by the amount of pounds in one ton.

12 * 2000 = 24000

There are 24,000 lbs in 12 tons.
Hope that helped! =)

There are 24,000 lb because there are 2,000 lb in one ton so to fint how many lb are in 12 tons you multiply 12 by 2,000 and you get 24,000 lb

What is 7x8 and 9x2 and 7555x90

Answers

7x8=56
9x2=
755x90=679950

7 X 8 = 56
9 X 2 = 18
7555 X 90 = 679,950

Andrew Shapiro has a single membership in his company’s medical insurance program. The total cost is $5,360 annually and his employer pays 75% of the total cost. He also pays for the optional annual dental premium of $600 and the optional vision premium of $200 per year. His contribution is deducted monthly from his paycheck. How much is Andrew’s monthly deduction?