MATHEMATICS MIDDLE SCHOOL

Debbie estimated that a caterpillar was 4.5 cm long. Later, she found its actual length to be 4.8 cm. Find the percent error.

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

divide 4.5/4.8. you get .9375.

subtract this from 1

1-.9375

and you get 0.0625.

multiply that by 100 to get it into percent form

6.25%

Answer 2

Answer: 6.25

4.8-4.5
0.3 divide 4.8= 0.062 x 100= 6.25

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the pizza slice served at O'Connor's pizza place are 1/4 of a whole pizza. There are three pizzas ready to be served. 14 children come in for lunch. Is there enough pizza for every child? please explain your thinking, LOL PLZ HELP WITH MY MATH HOMWORK? THX 12 POINTS

Answers

No there will not be enough. Think about it this way. If each slice is 1/4 of the pizza, then each pizza can only feed 4 people. If you have 3 of these pizzas, then you can feed 12 people at most. Since there are 14 kids, you won't have enough.

4 pieces/1 pizza= x pieces/3 pizzascross multiplyx= 12 piecesnot enoughhope this helps

Carrie borrowed $840 from a friend to pay for a car repair. Carrie promises to repay her friend in 8 equal monthly payments. The remaining amount Carrie has to repay can be represented by a sequence.

Answers

Answer:

Carrie will pay $105 each month.

Step-by-step explanation:

Carrie borrowed $840 from a friend to pay for a car repair. Carrie promises to repay her friend in 8 equal monthly payments.

That means the payments will be = $(840)/(8) =105$ dollars at each month.

And no remainder amount is left.

8 equally monthly payments is $105 no remainder.

What is the equation of the line passing through the points (2/5, 19/20) and (1/3, 11/12)in slope-intercept form?

Answers

Answer:

y=1/2x+3/4

Step-by-step explanation:

A cylinder has a radius of 12m and a height of 8m. What is the approximate surface area of the cylinder? use 3.14 for Pi.

Answers

Surface Area = 2 × π × r × (r+h). So 2 × π × 12 × (12+8). Then 2 × π × 12 × 20. And then 480 π. And your answer is about 1507.

Simple, A=2πrh+2πr²=2*π*12*8+2*π*12²=1507.96447m². If you want to round your answer, it would be 1507.96m²

How do you find triangle angle sum

Answers

All triangles need to add to 180 degrees so if you have 2 values and need to find the missing angle, add the 2 you have then subtract from 180

Use the law of cosines to find the balue of cos 0 . Round to answer to two decimal places

Answers

Answer:

Step-by-step explanation:

Using the law of cosines then cosΘ is the following quotient

cosΘ = $(a^2+b^2-c^2)/(2ab)$

where a = 5.8, b = 10.5 and c = 10.9

cosΘ = $(5.8^2+10.5^2-10.9^2)/(2(5.8)(10.5))$

= $(33.64+110.25-118.81)/(121.8)$

= $(25.08)/(121.8)$ = 0.21 → C

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30 inches increased by 30%