MATHEMATICS MIDDLE SCHOOL

What is the simplified expression for 4 power 4 multiplied by 4 power 3 over 4 power 5?40
41
42
43

Answers

Answer 1
Answer: (4^4\cdot 4^3)/(4^5)=(4^7)/(4^5)=4^2=16
Answer 2
Answer:

Answer:

3rd answe; 42

Step-by-step explanation:

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What is simplify x-2y=-2​

Answers

x=-2+2y
x=2(-1+y)
x=2(y-1)

How do you solve equations like this: 7 5/6? can someone explain it? (7 5/6 is just an example)

Answers

a  b/c is a mixed number, we can turn a mixed number into  its simplest form in this way:
a  b/c= a +  b/c=(a*c+b)/c

In this case:
7  5/6=7+  5/6=(7*6+5)/6=(42+5)/6=47/6

Therefore:  7  5/6  =47/6
Convert 7 5/6 to decimal form...

The fractional part of this number is what needs the focus. The whole number is 7, so we know that the decimal will lie somewhere between 7 and 8 (it will be 7 point something). All we have to do is convert 5/6 To decimal and attach it to the 7...

To find the decimal just do the math described by the fraction. 5/6 literally reads 5 ÷ 6. Set up the division and the result is .8333

So the decimal form of
7 5/6 is 7.8333

Alternatively you can set it up as a ratio then solve for x.

5/6 = x/100

Cross multiply

6x = 500

divide each side by 6

x = 83

83/100 = .83

7 5/6 = 7.83

Is 0.15 greater than 0.4

Answers

no it is not greater than 0.4

You plant a tree that is 36 inches tall. After one year, the tree is 43 inches tall. Write an expression which describes the percent of increase in the trees height?

Answers

36 - 100%
43 - x  %

we multiply by cross ->  36 * x = 100 / 43 

we should remove '100%' from new value, because we find only increase.. no new value in percent.

x + 100 = (43 * 100)/36 

x =  4300/36 - 100
x = 119+ 16/36 -100
x = 19 +4/9
((h_(f)-h_(o)))/(h_(o)) *100

((43-36))/(36) *100

(7)/(36) *100

0.1944*100

19.44

19.44% increase

Is 0.9 less than greater than or equal to 0.09

Answers

Hi! 0.9 is greater than 0.09 because 0.9 is 90/100 in fraction while 0.09 is 9/100. 90/100 is 10 times greater than 9/100. Have a good day.

35 girls and boys went walking. The ratio is 5 girls to every 2 boys. How many boys are there?

Answers

Set up a proportion:

In a sample of 5:2, you have 7 kids in all.

So the the ratio of boys to kids in a sample of 7 is 2:7.

So set up a proportion:

(2)/(7) = (X)/(35)

7x =70

X = 10

Therefore, 10 of the boys went walking.
5x-\ girls\n\n2x-\ boys\n\n5x+2x=35\n\n7x=35\ \ \ | divide\ by\ 7\n\nx=5\n\nThere\ are\ 10\ boys.
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