4 years ago

Seven subtracted from 3 times a number is equal to 9 more than 5 times the number (3x - 7 = 5x + 9) What is that number?

Mathematics

2 answers:

kirza4 [7]4 years ago

8 0

The number to the equation is x=-8

vaieri [72.5K]4 years ago

5 0

3x - 7 = 5x + 9
-7 = 2x + 9
-16 = 2x
x = -8

You might be interested in

I need this quick, anyone got the answer?

KIM [24]

Answer:

y=x2

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

How to convert 923 to scientific notation?

olchik [2.2K]

How to convert 932 to scientific notation?
Answer: 9.32 times 10^2

8 0

3 years ago

Caroline has 12 cherries and 13 strawberries. What percentage are the cherries?

Tasya [4]

Answer:

12/25=48%

Step-by-step explanation:

total=denominator=12+13=25

numerator=no of cherries=12

12/25=x/100

1200=25x

x=48%

6 0

3 years ago

Which is greater, 7 P 5 or 7 C 5? 7P5 7C5

kirza4 [7]

$_7P_5=\dfrac{7!}{(7-5)!}=\dfrac{7!}{2!}=3\cdot4\cdot5\cdot6\cdot7=2520\\_7C_5=\dfrac{7!}{5!2!}=\dfrac{6\cdot7}{2}=21\\\\\\_7P_5> {_7C_5}$

--------------------------------------------

$_nP_k$ is always greater than $_nC_k$ . And it's greater $k!$ times.

$\dfrac{_nP_k}{_nC_k}=\dfrac{\dfrac{n!}{(n-k)!}}{\dfrac{n!}{k!(n-k)!}}=\dfrac{n!}{(n-k)!}\cdot \dfrac{k!(n-k)!}{n!}=k!$

7 0

3 years ago

You have $20 to spend on a pizza. A cheese pizza cost $10 and extra toppings cost $0.50 each. How many extra toppings can you bu

Whitepunk [10]

20 toppings

20-10=10

0.50*20=10

6 0

3 years ago

Read 2 more answers