All categories

3 years ago

If -2(3y+5)=-4, find the value of 5y

Mathematics

2 answers:

-BARSIC- [3]3 years ago

8 0

$-2(3y+5)=-4\\\\-6y-10=-4\ \ \ \ \ |add\ 10\ to\ both\ sides\\\\-6y=6\ \ \ \ \ \ |divide\ both\ sides\ by\ (-6)\\\\\boxed{y=-1}$

densk [106]3 years ago

3 0

$-2(3y+5)=-4\\ -6y-10=-4\\ -6y=6\\y=-1\\\\
5y=5\cdot(-1)=-5$

You might be interested in

Find the area to the nearest square foot of the shaded region below, consisting of a square with a circle cut out of it. Use 3.1

NeTakaya

Answer:

22 square feet

Step-by-step explanation:

Area of shaded region = Area of square - Area of circle. The diameter of the circle is also the length of the side of the square as the circumference of the circle is on the circumference of the square.

Area of circle = 3.14 × r × r

r = 10 ÷ 2

= 5

Area of circle = 3.14 × 5 × 5

= 78.5

Area of square = length × length

Area of square = 10 × 10

= 100

Area of shaded region = Square - Circle

= 100 - 78.5

= 21.5

= 22 (to the nearest square foot)

I hope this helps :)

7 0

2 years ago

Devisibility rules for 3, 6, and 9

fenix001 [56]

Answer:

★ Divisibility rule for 3 -

If the sum of all the digits divisible by 3 then the number is divisible by 3.

Here, we take an example for better understanding -

Example 1 - 3525

Add up the digits - 3 + 5 + 2 + 5

→ 15

As, 15 is divisible by 3. So, 3525 is a factor of 3.

★ Divisibility rule for 6 -

A number is to be divisible by 6 , if the number is also divisible by 2 and 3.

Example 2 - 132

Add up the digits = 1 + 3 + 2 = 6

As, 6 is divisible by 2 and it's also divisible by 3. Then, 132 is a factor of 6.

★ Divisibility rule for 9 -

If the sum of all the digits is divisible by 9 then the number is divisible by 9. Just like we'd in 3.

Example 3 - 1052

Add up the digits - 10 + 5 + 2 = 17

As, 17 is not divisible by 9. So, 1052 is also not divisible by 9.

3 0

3 years ago

Ms Wallwill Roll a single number cube. What is the What is the probability she will roll an even number ?

sveta [45]

Answer:

50/50

Step-by-step explanation:

half the numbers are odd, half even, on a die, so its a 50/50 chance

7 0

3 years ago

Wich of the expressions simplify 10y + 8??

vovangra [49]

Answer:

2(5y+4)

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Whats an"an amount, shared equally with 4 people "

aleksley [76]

well if that's in a math problem then its division. Because you are sharing equally.

6 0

2 years ago