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GenaCL600 [577]
3 years ago
15

You are taking an exam and there are still many questions left to be solved. You already got 18 questions correct out of 25. The

desired final grade is 80%. How many correct answers do you need to get the desired final grade?
Mathematics
1 answer:
UkoKoshka [18]3 years ago
8 0

The answer is 2

Step-by-step explanation: 100% is the highest score you can have  . then you have to divide 25 by 100 because 25 is the total amount of questions ,you should get 4,wich means each question is worth 4 points.

18 correct is a score of 72

20 correct is a score of 80

4x2=8 wich you need 8 more to get to 80 from 72

feel free to ask for more help :)

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A bicycle wheel has a radius of 13 inches.
mario62 [17]

Step-by-step explanation:

the circumference of a wheel is one revolution

so

formula: circumference=π*diameter

D=26cm (13*2 to find the whole length from one end to other)

so you'll do 3.14*26 equals 81.64

one revolution=81.64

30 revolutions=2,448.3 inches (times by 30 with 81.64)

3 0
3 years ago
X - - 3 = 10 <br><br> What is the value of x?
Pepsi [2]

Answer:

x = 7

Step-by-step explanation:

Rule: an even number of - signs written one after another produces a plus number.

So - - 3 = 3

The rule also lets you do something strange like

- - - - 4 = 4 but you hardly ever see this.

Rule: an odd number of minus signs produces a minus number.

x + 3 = 10                 Subtract 3 from both sides.

x + 3 - 3 = 10 - 3      

x = 7

4 0
2 years ago
Read 2 more answers
Use &lt;,&gt;,or= to compare the ratios 36 ? 6 <br> 60 10
katen-ka-za [31]

Answer:

36/60 =6/10

Step-by-step explanation:

36/60 = 0.6

6/10=0.6

4 0
3 years ago
PLEASE HELP ASAP!!
Sunny_sXe [5.5K]
Y=50+.05x

Just plug in the number of texts for x

y=50+.05(25)
y=51.25

^That was for 25 texts

Now just plug in all the other texts and replace that with x

Hope this helps!
4 0
3 years ago
A) What type of triangle is triangle ABC?<br> isosceles<br> b) Give reasons for your answer.
lara31 [8.8K]

The type of triangle represented in the image attached to the task content is; Isosceles.

<h3>What type of triangle is triangle ABC?</h3>

By observation; since line AB and DE are parallel lines; it follows from the alternate Angie theorem that; <ABC = <BCE = 80°.

On this note, since angle ACD is 50°, the measure on <ACB is;

180 - 80 - 50 = 50°.

Therefore, since the sum of interior angle measures in a triangle is; 180°.

It follows that; <BAC is; 180 - 80 - 50 = 50°.

Hence, since the base angles; BAC and ACB are equal; it follows that the triangle in discuss is an isosceles triangle.

Read more on isosceles triangle;

brainly.com/question/1475130

#SPJ1

4 0
1 year ago
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