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prisoha [69]
2 years ago
11

18. When y = x?, which of the following expressions is equivalent to -y ?

Mathematics
1 answer:
vitfil [10]2 years ago
5 0

Answer:

-y=-x

The problem:

y=x then -y=?

Step-by-step explanation:

If y=x, then -y=-x.

Just like if u=9, then -u=-9.

Or, if -m=8, then m=-8.

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I need help please thanks​
Tom [10]

Answer:

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Step-by-step explanation:

ukiukiukiyji

8 0
2 years ago
Solve: x + 3 = -x + 7 (5 points)
makvit [3.9K]

Answer:

x = 2

Step-by-step explanation:

x + 3 = -x + 7

Add x to each side

x+x + 3 = -x+x + 7

2x+3 = 7

Subtract 3 from each side

2x = 7-3

2x = 4

Divide by 2

2x/2 = 4/2

x = 2

7 0
3 years ago
Read 2 more answers
A person invested $2,500 in an account growing at a rate allowing the money to
sveta [45]

Answer:

Step-by-step explanation:

A person invested $2,500 in an account growing at a rate allowing the money to double every 11 years. How long, to the nearest tenth of a year would it take for the

value of the account to reach $3,800?

The formula for exponential growth given as:

A(t) = Ao (1/2)^t/t½

A(t) = Amount after time t = $3,800

Ao = Initial amount invested = $2500

t = Time in years

t½ = Time it takes to double = 11 years

Hence,

3800 = 2500(1/2)^t/11

Divide both sides by 2500

3800/2500 = 2500(1/2)^t/11/2500

3 0
2 years ago
Solve for x. Your answer must be simplified. -3 < x/-4
Harman [31]

Answer:

x<12

Step-by-step explanation:

Let's solve your inequality step-by-step.

−3< x/ −4

Step 1: Simplify both sides of the inequality.

−3< −1/ 4 x

Step 2: Flip the equation.

−1/ 4 x>−3

Step 3: Multiply both sides by 4/(-1).

( 4/ −1 )*( −1/ 4 x)>( 4 /−1 )*(−3)

x<12

Answer:

x<12

4 0
2 years ago
If 15% is 375, how much is 5%
Nonamiya [84]

The easy way is just to divide by 3

15% /3 = 5%

Since you have divided the % by 3  you can divide the 375 by 3

375 / 3 = 125

Answer 125

7 0
3 years ago
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