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4 years ago

8/5 × 9/6 is equal to?

2 answers:

7 0

Multiply numerator with numerator and denominator with denominator
So 8 x 9=72 5x6=30
So the answer is 72/30 Simplified is 12/5

Virty [35]4 years ago

3 0

Th answer to your question is 12/5

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Sam has $440 in $20, $10, and $5 dollar bills. The number of twenties, tens and fives are consecutive integers in this order. Ho

Ludmilka [50]

Answer: There are 12 bills for $20, 13 bills for $10 and 14 bills for $5.

Step-by-step explanation:

Let the number of twenties be x

Let the number of tens be x+1

Let the number of fives be x+2

Amount from twenties will be given as

$20\times x=20x$

Amount from tens will be given as

$10\times (x+1)=10x+10$

Amount from fives will be given as

$5\times (x+2)=5x+10$

According to question,

$20x+10x+10+5x+10=440\\\\35x+20=440\\\\35x=440-20\\\\35x=420\\\\x=\frac{420}{35}\\\\x=12$

So, there are 12 bills for $20, 13 bills for $10 and 14 bills for $5.

6 0

4 years ago

Fill in the other coordinate for the line y=23x+3 y = 2 3 x + 3 : (3, )

Igoryamba

23(3) + 3

= 72

Why do you write 2 equations?

5 0

4 years ago

Read 2 more answers

The product of two numbers is -30, but their sum is -13. What are these two numbers?

Nata [24]

<h3>Answer: -15 and 2</h3>

You find this through trial and error.

A much more efficient way is to solve x^2-13x-30 = 0 using the quadratic formula. You'll find the two solutions to be x = 15 and x = -2

Going from those solutions, we get x-15 = 0 and x+2 = 0 which then turn into (x-15)(x+2) = 0 through the zero product property.

3 0

3 years ago

Read 2 more answers

If the height of the base is 15 and the width of the base is 8 what is the length of the hypotenuse

tino4ka555 [31]

Answer:

The length of the hypotenuse is 17.

Step-by-step explanation:

$15^2 + 8^2 = 17^2.$

I found this out by doing:

15 x 15 = 225

8 x 8 = 64

225 + 64 = 289

$\sqrt{289} = 17$

Hope this helps you! :)

7 0

4 years ago

At the beginning of an environmental study, a forest covered an area of 1500 km2 . Since then, this area has decreased by 9.8% e

fredd [130]

Answer:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

Step-by-step explanation:

In this problem, the initial area of the forest at time t = 0 is

$A_0 = 1500 km^2$

After every year, the area of the forest decreases by 9.8%: this means that the area of the forest every year is (100%-9.8%=90.2%) of the area of the previous year.

So for instance, after 1 year, the area is

$A_1 = A_0 \cdot \frac{90.2}{100}=0.902 A_0$

After 2 years,

$A_2=0.902 A_1 = 0.902(0.902A_0)=(0.902)^2 A_0$

And so on. So, after t years, the area of the forest will be

$A(t)=(0.902)^t A_0$

And by substituting the value of A0, we can find an explicit expression:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

8 0

4 years ago