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3 years ago

-5x = 25 what is the answer for x?

Mathematics

2 answers:

romanna [79]3 years ago

8 0

Answer:

i think its -5

Step-by-step explanation:

if you devide 25 by -5 you get -5

Andrews [41]3 years ago

3 0

Answer: x = -5

Step-by-step explanation:

We can use inverse operations to solve the equation. Because the term "-5x" is multiplication (because you are multiplying x by -5), we can use division to solve the equation.

First, we will divide -5 from 25.

25 ÷ -5 = -5.

Because of this, x = -5!

If we're not sure, we can also check the equation.

-5 x -5 = 25, so the answer is true.

In conclusion, x = -5!

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3 years ago

A commercial jet liner hits an air pocket and drops 223 feet. After climbing 177 feet it drops another 162 feet. What is its ove

kondaur [170]

218 is the overall vertical change

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3 years ago

Daisy, the african elephant weighs 10,250 pounds. The daily feed intake for an elephant is approximately 1.5% of the animals bod

AlexFokin [52]

Answer: a) 154 kilograms

Step-by-step explanation:

Given : Daisy, the african elephant weighs 10,250 pounds.

The daily feed intake for an elephant is approximately 1.5% of the animals body weight.

1.5% can be written as 0.015.

Now, the amount of feed is to be feed to Daisy to meet her requirements will be :_

$0.015\times10250=153.75\approx154$

Hence, 154 kilograms of feed is to be feed to Daisy to meet her requirements.

4 0

3 years ago

Type the correct answer in each box,

Sauron [17]

Answer:

The $n^{th}$ sequence aₙ = -15 +5n

The fifth term of the sequence

a₅ = 10

Step-by-step explanation:

Step(i):-

Given sequence

-10,-5,0,5,10,15,20,.....

The first term = -10

The difference of two terms in the given sequence is equal

d = -5-(-10) = -5 + 10 = 5

d = 0 -(-5) = 5

The given sequence is in arithmetic progression

Step(ii):-

The $n^{th}$ sequence

$a_{n} = a+(n-1) d$

aₙ = -10 +(n-1) 5

aₙ = -10 + 5n -5

aₙ = -15 +5n

Step(iii):-

The $n^{th}$ sequence aₙ = -15 +5n

put n = 5

a₅ = -15 + 5(5) = -15 +25 = 10

Final answer:-

The $n^{th}$ sequence aₙ = -15 +5n

The fifth term of the sequence

a₅ = 10

6 0

3 years ago

When is it appropriate to use the two-sample t-methods instead of the one sample t-methods? Choose the correct answer below. A

Marta_Voda [28]

Answer:

A. Use the two-sample t-methods when a sample was taken from each of two populations (i.e. two groups being compared) and the population standard deviations are not known.

Step-by-step explanation:

T-distribution:

When the population standard deviation is not known, the t-distribution is used.

If a sample was taken from one population, we use the one-sample method, while if there is a comparison of two populations, the two-sample method is used, and thus, the correct answer is given by option A.

3 0

3 years ago