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Arada [10]
3 years ago
5

I need help with my mathematics exam grade 7 end year!PLEASE help me asap!!PLEASE i beg you :)​

Mathematics
1 answer:
AnnyKZ [126]3 years ago
8 0

so first off for the ratios

if you were to find them on a graph, you would want to find a slope. The slope is your ratio pretty much

if you were to find them for a table, you would have to see what the question is asking. if it asking like what is the amount of people vs animals per square mile, you would find people on the table and then go down to square mile as opposed to square feet or some other variable. Then you will put what they are asking first and then what they are asking second. here ill show you an example if it is to confusing what i just said. if there are 50 animals per square mile and 150 people per square mile, and the question asked you what is the ratio between people and animals, you would answer 150/50, BUT you have to simplify. 3/1 would be you answer.

next off for the transformation

if there was a triangle at the points 5,3|4,6|5,5| and you wanted to translate it 5 units up and 6 units to the left, all you do is think about this. up and down are changes in the y, left and right are changes in the x axis. left and down are negative changes, up and right are positive changes.

so you would apply that thinking to ALL the points. it would look something like the picture below.

finally, for the shaded area of figures

lets take a abstract figure. say that we shade the upper left hand corner, and it will look something like the picture below. If you want to find the area of the figure, you would have to isolate it. Then you would multiply the width by the length and get 2.

i really hope this helps on your exam. good luck!

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Help,Cause homework is hard :/
Nutka1998 [239]
Hey there!

In my opinion, yes, because there are many reasons for this answer. But one reason is that when you get older, you'll be using 3.14 more than 22/7 because you don't really use fractions anymore, you use decimals.

^^That's my opinion, you might have something different^^

Hope this helps!
6 0
3 years ago
The width of a rectangle is 3 units less than the length. The area of the rectangle is 28 units. What is the width, in units, of
KATRIN_1 [288]

Answer:

4

Step-by-step explanation:

Let's call the width W and the length L.

We know the width is 3 less than the length, so:

W = L - 3

And we know the area is 28, so:

28 = WL

If we solve for L in the first equation:

L = W + 3

And substitute into the second equation:

28 = W (W + 3)

28 = W² + 3W

0 = W² + 3W - 28

0 = (W + 7) (W - 4)

W = -7, 4

Since W can't be negative, W = 4 units.

8 0
3 years ago
1. Anna was invited to prom by two different dates, Tyler and Max. She doesn't want to hurt anyone's feelings, so decides to mak
Delicious77 [7]

Answer:

c

Step-by-step explanation:

the dice are equal

4 0
3 years ago
Read 2 more answers
A bee beats its wings 250 times each second what is the average time for a single beat of a bee's wing
eduard
No. Of times bee beats in 1 sec=250
Average time =?
Frst find how many times bee beats in 1 min.
No. Of times bee beats in 1 min= 250*60=15000
Average time= 15000/ 250
Average time=60 times
3 0
3 years ago
Read 2 more answers
A freight carrier charges $0.80 for the first ounce plus an additional $0.25 for every ounce (or part of an ounce) over the firs
Jobisdone [24]

Answer:

$1.80

Step-by-step explanation:

5 ounces

1st ounce = .80¢ plus 25¢ for every other ounce. You have 4 ounces left. 25¢ times 4. = $1.00

$1.00

+0.80

_____

$1.80

3 0
3 years ago
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