MATHEMATICS MIDDLE SCHOOL

How do you find x
X*-6x-7=0

Answers

Answer 1
Answer: x^2-6x-7=0\nx^2+x-7x-7=0\nx(x+1)-7(x+1)=0\n(x-7)(x+1)=0\nx=7 \vee x=-1

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Edward had 45 water bottles. If he drank 1/9 of water bottles, how many did he drank?

Answers

Answer:

He drank 5 water bottles.

Step-by-step explanation:

We need to find one-ninth (1/9) of the total number of water bottles (45).

Multiply the two numbers together:

(1)/(9)*45

=(45*1)/(9)       Combine into numerator (top) to multiply

=(45)/(9)         Simplify the fraction by dividing top by bottom

=5        Answer

Therefore, Edward drank 5 water bottles.

If the perimeter of an equilateral triangle is 60 cm, then what is its area?

Answers

Hello! The Perimeter is = 60cm
1 side = 60/3 = 20 cm
√s(s-a)(s-b)(s-c)s(s−a)(s−b)(s−c)

s = 30

√30(30-20)(30-20)(30-20)

=√30×10×10×10=√30000cm²

The Area is = 100√3 cm²
P=60/3
=20
a+b=c
C-b=a
40p-100=root 300
100root3

How many cashews are in one serving

Answers

16 to 18 cashews per serving

if Kassidy earns 8$ per hour and Andrea earns 10$ per hour how much more in PERCENT% does Andrea make than Kassidy?

Answers

Subtract the numbers.

10 - 8 = 2

Divide it to the smaller number:

2 / 8 = 0.25

Multiply by 100:

0.25 * 100 = 25%

Juan says, "When you puttogether unequal groups you can only add. is he correct? Explain.
( this is a multipcation question by the way)

Answers

Answer: No


Step-by-step explanation:

Because even if you put it in odd groups you can add or subtract same with even.

Step-by-step explanation:

noooooope :)))))

Find the greatest common factor of 16 and 45

Answers

factor 16 and 45 and find the common ones
16=1*2*2*2*2
45=1*3*3*5


common one is 1
gcf=1
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