Please help me!! I don’t get this!

What is the value of x in the equation 3x-4y=65, when y=4?

Softa [21]

Answer:

$\boxed{ \bold{ \huge{ \boxed { \sf{x = 27}}}}}$

Step-by-step explanation:

Given, value of y = 4

To find : Value of x

$\sf{3x - 4y = 65}$

plug the value of y

$\dashrightarrow{ \sf{3x - 4 \times 4 = 65}}$

Multiply the numbers : 4 and 4

$\dashrightarrow{ \sf{3x - 16 = 65}}$

Move 16 to right hand side and change it's sign

$\dashrightarrow{ \sf{3x = 65 + 16}}$

Add the numbers : 65 and 16

$\dashrightarrow{ \sf{3x = 81}}$

Divide both sides by 3

$\dashrightarrow{ \sf{ \frac{3x}{3} = \frac{81}{3} }}$

Calculate

$\dashrightarrow{ \sf{ x = 27}}$

Hope I helped!

Best regards! :D

5 0

3 years ago

Read 2 more answers

Discuss his principles of inheritance by answering the following questions. Two plants are being crossed, each heterozygous for

disa [49]

Answer:

Q1 - What is the possibility that the offspring will have white flowers? Express your answer as a ratio.

A: White flowers only appear if the offspring is homozygous for b because this phenotype is recessive, so they have to present bb phenotype. If both parents are heterozygous (Bb), each one gives one gene at a time per individual after crossing, so 1/4 would be BB, 2/4 would be Bb and 1/4 would be bb.

Q2 - If one parent is also heterozygous for smooth peas, does this mean that all of the offspring with blue flowers will also have smooth peas? Explain your answer without using a Punnett square.

A: No, it doesn't mean that all blue flowers will present smooth peas because those genes are expressed in different loci, so they segregate independently. There might be some blue flowers with smooth peas, but that is not mandatory for all of them.

Q3 - Suppose both parents are also heterozygous for smooth peas (S), with wrinkled peas (s) as the recessive trait. Use a Punnett square to predict the possibility that the offspring will be homozygous for both flower color and pea texture. Make sure to include a Punnett square and express your prediction as a ratio.

A: Parental genotypes are BbSs x BbSs. Given that the genes segregate independently, we will have the Punnett diagram as follows:

BS / Bs / bS / bs

BS BBSS / BBSs / BbSS / BbSs

Bs BBSs / BBss / BbSs / Bbss

bS BbSS / BbSs / bbSS / bbSs

bs BbSs / Bbss / bbSs / bbss

Homozygous genotypes are the ones that both genes are the same when expressed, either BB,bb,SS or ss. The probability the offspring is homozygous for both flower color and pea texture is 4/16, or 1/4.

5 0

3 years ago

A spinner has 12 equal sectors. 4 sectors are coloured red, 3 are coloured blue, and 5 are coloured yellow. The pointer on the s

vodomira [7]

Answer:

3.70% probability of the pointer landing on red each time

Step-by-step explanation:

For each time that the pointer is spun, there are only two possible outcomes. Either it lands on red, or it does not. The probability that it lands on red on a spin is independent of other spins. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

12 sections, of which 4 are red.

This means that $p = \frac{4}{12} = 0.3333$

The pointer on the spinner is spun 3 times.

This means that $n = 3$

What is the probability of the pointer landing on red each time?

This is P(X = 3).

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 3) = C_{3,3}.(0.3333)^{3}.(0.6667)^{0} = 0.0370$

3.70% probability of the pointer landing on red each time

3 0

3 years ago

What is the value of 4+(8*2)-3+5

Fed [463]

Hello there!

You have to do PEMDAS to solve this problem

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

We're doing: addition, parentheses , and multiplication!

So, 8(2) = 16, right?

Problem becomes: 4 + (16) - 3 + 5

4 + 16 = 20

Problem becomes: 20 - 3 + 5

20 - 3 = 17

17 + 5 = 22

So, therefore your answer would be: 22

Good luck on your assignment and enjoy your day!

~MeIsKaitlyn:)

3 0

3 years ago

Which function below has the smallest slope?

Burka [1]

Answer: The functions all have the same slope

Step-by-step explanation:

just took the assessment and I got it right.

5 0

4 years ago