MATHEMATICS HIGH SCHOOL

A certain test is worth 155 points. How many points (rounded to the nearest point) are needed to obtain a score of 65%?

Answers

Answer 1
Answer: 65\%=(65)/(100)=0.65\n\n65\%\ of\ 155\to0.65*155=100.75\approx101

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In65 - lnX = 39
What does X=?

Answers

Answer:

The answer is 7.47

Step-by-step explanation:

In this problem we are going find the natural logarithmic of the numbers involved and solve for x

ln65-Ln x= 39\n

from tables

ln 65= 4.17

4.17-ln x= 39\4.17-39= lnx\n-34.83=lnx\n

taking the exponents of both sides we have

e^-^3^4^.^8^3= x\nx= 7.47

allenbrights electronics is having a 25% off sale. if a radio is SALE priced at $135, what is its regual price?

Answers

75% is $135 

1% is $135/75 

So, 100% is (135/75) x 100 

So, the answer will be: $180 

A rectangle and a triangle with the same base and height have the same area. a. True
b. False

Answers

the answer is false because if you attach to triangles together in a way so that the figure would have 4 straight lines, you will get a rectangle. that means half of a rectangle is a triangle, so the area of both cannot be the same even if they have the same base and height.


for example the base and height of both is 3cm and 5cm.

area of the rectangle then would be,
area= base× height
=3cm×5cm=15cmsquared

then the area of the triangle would be,
area= base×height divided by 2
=3cm×5cm÷2= 7.5cm

so your answer is false
hope this helps....

Answer:

The Answer is False

What is 3-3 times 6+2=

Answers

SO the equation is 3-3*6+2.
Remember PEMDAS.
You multiply 3 and 6 first. Now this is 3-18+2.
You can then solve straight across. Your answer is -13!

______________________________
3-3*6+2
3-18+2
-15+2
-13

Answer:

-13 is ur answer

Step-by-step explanation:

Please answer this question

Answers

Answer:

D. 1,300

Step-by-step explanation:

Solving Linear Systems: Using Substitution
x=3y-4
3y - 4x = 6
someone pls help

Answers

Answer:

x = -2/3

y = 10/9

Step-by-step explanation:

3y - 4x = 6

x=3y-4

Substitute the second equation into the first for x

3y - 4( 3y-4) =6

3y - 12y +16 = 6

Combine like terms

-9y +16 = 6

Subtract 16 from each side

-9y +16-16 = 6-16

-9y = -10

Divide by -9

-9y/-9 = -10/-9

y = 10/9

x = 3y -4

x =3(10/9) -4

 =10/3 - 12/3

  =-2/3
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