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kumpel [21]
3 years ago
12

Help me please it about linear equations

Mathematics
1 answer:
Reika [66]3 years ago
3 0

Answer:

The last answer (?)

Step-by-step explanation:

I'm pretty sure it is the last answer becuase the graph shows Brazil going down over time and it is a constant rate of change..

(sorry if it's wrong I learned this a long time ago so I may not be the best :)

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25 students in a class took an algebra test 20 students passed the test what percent passed help
marysya [2.9K]

Answer:

80% of the students passed the algebra test

Step-by-step explanation:

So for this question, they want to know the percentage of the people that passed.

20 out of 25 students passed, we could find the percentage using two ways:

-------

1. We can use proportions to figure out the percentage (This can only work if the numbers are factorable by 100 such as 10, 25, 50...)

25 × 4 would equal 100. You must multiply the same number to the top as well.

So 20 × 4 = 80

--------

2. We can divide the two numbers

20 ÷ 25 = 0.8

When changed into a percentage, 0.8 would be 80%

-------

Have a good day :)

4 0
3 years ago
What is the perimeter of a square
777dan777 [17]

Answer:

4*sides

Step-by-step explanation:

4*sides is the Answer

5 0
3 years ago
Read 2 more answers
Mrs. Nevin is making a costume for a school play. She needs a piece of fabric that is greater than 1/2 of a yard but less than 5
Bumek [7]

Answer:

4/7 yards

Step-by-step explanation:

Given that :

Required fabric is > 1/2 but < 5/8

Let required fabric = x

Then ;

Converting the fractions to decimal :

1/2 = 0.5 ; 5/8 = 0.625

0.5 < x < 0.625

3/8 yards = 0.375 ;

4/7 yards = 0.571

3/7 yards = 0.429

2/4 yards = 0.5

0.5 < 0.571 < 0.625

From the options, only 4/7 yards satisfies the condition :

5 0
3 years ago
#2) The Ramy family went
suter [353]
If there were only sandwiches bought, there would be 15, if there were only salads bought there would be 20. There’s probably more than one possibility, but that’s the best I can do, considering how long it’s been since I’ve done this type of problem. I’m all the way to learning determinants, so I really have to think to remember these. Sorry in advance if this doesn’t help at all, I’m not the best at this, but I can still try.

5 0
2 years ago
What is the area of this circle?
ddd [48]
A= 3.14 • “r”squared
3 0
3 years ago
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