Bradley completed 3/5 of his homework. What percent of his homework does he still need to complete?

Answers

Answer 1

Answer: 3/5 = 6/10 (which is 60%) 100% - 60% = 40%

Answer 2

Answer: 5/5 = 100% of his homework correct? SO...

Take 100 / 5. This is 20. each question is 20% of his homework. So multiply 3 x 20 (since he has only completed 3) this is 60.

Now take 100 (the total) and take 60 (the number he has completed) to get your total.

Total = 40... so 40%

makes sense?

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What expression can be used for estimating 868 divided by 28

Answers

You could do 870/30=29.
Or you could do 868/28=31 and then round it but it looks like it doesn't need rounding.

A magazine printed photos of three celebrities along with three photos of the celebrities as babies. The baby pictures did not identify the celebrities. readers were asked to match each celebrity with the correct baby pictures. What is the probability that a reader guessing at random will match all three correctly?

Answers

The probability of matching the first one correctly is 1/3 .
Then there are only two baby-pix left, so ...
The probability of matching the second one correctly is 1/2 .
Then there's only one baby-pic left, so ...
The probability of matching the third one correctly is 1 .

So the probability of matching all three correctly is

(1/3) x (1/2) x (1) = 1/6 = (16 and 2/3) percent .

There are 3 options for the celebrities and 3 options for the babies. There is a 1 in 3 chance that a reader guessing at random will guess correctly. You compute the probability by dividing 100 by 3. 100 divided by 3 is 33.33%. Thus, there is a 1 in 3 chance or 33.33% that a reader guessing at random will answer correctly.

How is a net useful when finding the surface area of prisms and pyramids

Answers

Answer: Explained.

Step-by-step explanation: We are given to explain the importance of using net in finding the surface area of prisms and pyramids.

With the help of net, we can easily see the different sides, faces and angles of a prism or pyramid.

For example, see the attached figure, where the nets of both prism and pyramid are shown.

With the help of these figures, we can easily calculate the surface area by finding the surface area of each face of the prism or pyramid.

it is useful because it helps you know how many faces the prism or pyramid has

PLEASE HELP

A

B

C

OR

D

Answers

Answer:

36 cm

Step-by-step explanation:

P = 2l + 2w

Plug in

P = 2(14) + 2 (4)

P = 28 + 8

P = 36

Answer:

Step-by-step explanation:

perimeter = 2l + 2w ← given

To calculate the perimeter substitute l = 14 and w = 4 into the formula

perimeter = (2 × 14 ) + (2 × 4 ) = 28 + 8 = 36 cm → D

Make up a word problem for y = 50+4x

Answers

Bill has 50 pennies in his drawer he finds 4 more pennies on the floor and his brother gives him x times the amount of pennies he has.

Lindsey has to pay for a car. Initially, she has to put $50 as a down payment. After that, she has to pay a fee of x amount of dollars for four months.

Suppose you are doing a 5,000 piece puzzle. you have already placed 175 pieces. Every minute you place 10 more pieces. Write and equation in slope intercept form to model the number of pieces placed. Is this relationship linear, how do you know?

Answers

y=mx+b

5,000=10x+175

Where x equals minutes spent working on the jigsaw.

Final answer:

The equation modelling the given scenario in slope-intercept form is y = 10x + 175, which represents a linear relationship because the rate at which puzzle pieces are being placed,10 per minute, is constant.

Explanation:

The subject of your query falls into the category of linear algebra, specifically, slope-intercept form equations and linear relationships in mathematics. In slope-intercept form, a line can be described by the equation y = mx + b, where 'm' represents the slope and 'b' signifies the y-intercept.

For your puzzle scenario, 'm' is the number of puzzle pieces you place each minute, which is 10, and 'b' is the initial number of pieces already placed which is 175. Therefore, the equation that models your situation is y = 10x + 175.

This relationship is, indeed, linear. We know this because the rate at which you are placing puzzle pieces is constant, meaning it doesn't change over time. This is characteristic of a linear relationship, as represented by the straight line on a graph. In other words, for every unit increase in time (x), the number of puzzle pieces placed (y) increases at a steady rate of 10.

Learn more about Linear Relationship here:

brainly.com/question/31693063

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