MATHEMATICS HIGH SCHOOL

Can you help me with this question please?

Answers

Answer 1

Answer:

Answer:

(1, -3)

Step-by-step explanation:

You can see where the two lines intersect - that's the solution.

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What is the common difference between the elements of the arithmetic sequence below? –18, –22.5, –27, –31.5, –36

Answers

Answer
Common difference = -4.5

Explanation.
An arithmetic sequence is a sequence in which the next term is found by adding a constant to the current term. This constant is called the common difference.
If a, b, c, d, e, ….is an arithmetic sequence, then the common difference will be,
Common difference = b-a=c-b=d-c=e-d…..
Now the question above common difference is;
Common difference = (-22.5)-(-14)=-4.5

Answer:

-4.5

confirmed correct on edge

Some students attend school 180 of the 365 days in a year. About what part of the year do they attend school?

Answers

If 365 is 100% and 180 is about 50% then your answer is 50%.

A picture frame for a square picture has an area of 80 square inches. What is the length of the picture?

Answers

$√(80)$
That is approximately 8.94

What is the total cost of a $150.00 necklace if the sales tax is 6.5?

Answers

The best thing to do is to find what 1% is, and you can do this by dividing 150 by 100.
150/100= 1.5
As you're looking for 6.5%, you've got to multiply 1.5 by 6.5
1.5*6.5= 9.75
You've then got to add 9.75 and 150 together
150+9.75= $159.75
Therefore, after the sales tax, the cost of the necklace is $159.75
Hope this helps :)

Choose the correct name for these sets of numbers.