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3 years ago

The product of 7 and a number, increased by 3, is equal to twice the number, subtracted from 39.

1 answer:

7 0

Let the number be X. Then we find
7X + 3 = 39 - 2X

Now we collect the terms and find
9X = 36

Finally we divide by 9
X = 4

So our answer is 4

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A fair eight-sided die with the sides numbered 1 to 8 is rolled twice.

ryzh [129]

A - rolling an odd prime number followed by an even prime number

B - two numbers are consecutive numbers in ascending order

$|\Omega|=8^2=64\\\\ |A|=\underbrace{3}_{\text{3,5,7}}\cdot\underbrace{1}_{\text{2}}=3\\ |B|=\underbrace{7}_{\text{(1,2),(2,3),\ldots(7,8)}}\\\\\\ P(A)=\dfrac{3}{64}\approx5\%\\ P(B)=\dfrac{7}{64}\approx11\%$

4 0

4 years ago

Can you explain to me (detailed) on how to do this problem? I will give you a brainly if you get this right.

Alex Ar [27]

Given : 

length = 12km
breadth = 2km

To find : 

Area of rectangle

Formula :

Area of rectangle = length × breadth .

procedure :

putting value of the given data into formula :

Area of rectangle = 12km ×2 km

= 24km ^2

Ans = 24km^2

${ \boxed{\pink{ \bold{area \: of \: rectangle = 24 {km}^{2} }}}}$

4 0

3 years ago

Read 2 more answers

I don’t know the answer please someone help.

yKpoI14uk [10]

Answer:D

Step-by-step explanation:

you divide 128 by 2 and then take away the x's and y's

4 0

3 years ago

I need help on 13. Please someone help me. Don’t put a link. Please help me.

Viktor [21]

Answer and Step-by-step explanation:

How to know if the side lengths can form a triangle:

Add together two of the lowest numbers. If it is greater than the largest number, it can form a triangle.

13. Yes, these side lengths can form a triangle.

-- 4 + 5 = 9.

-- 9 is greater than 7, the largest length.

14. No, these side lengths can't form a triangle.

-- 2 + 3 = 6

-- 6 is equal to 6, not greater than.

15. Yes, these side lengths can form a triangle.

-- 2 + 4 = 6

-- 6 is greater than 5, the largest number.

16. Yes, these side lengths can form a triangle.

-- Don't get confused when you see that there are two side lengths that are the same (it means that this is an isosceles triangle); the rules still apply.

-- 2 + 8 = 10

-- 10 is greater than 8, the largest number.

17. Yes, these side lengths can form a triangle.

-- 5 + 6 = 11

-- 11 is greater than 9, the largest number.

18. Yes, these side lengths can form a triangle.

-- 4 + 5 = 9

-- 9 is greater than 8, the largest number.

I hope this helps!!

#teamtrees #PAW (Plant And Water)

5 0

3 years ago

What is -h+4 = -h+9????

mote1985 [20]

$-h+4=-h+9\ \ \ \ \ |add\ "h"\ to\ both\ sides\\\\4=9\ -FALSE!\\\\no\ solutions$

7 0

3 years ago

Read 2 more answers