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3 years ago

5y +2 -4y I need help

Mathematics

1 answer:

Yuliya22 [10]3 years ago

3 0

Answer:

Simplified- 1y+2 or y+2

Step-by-step explanation:

To simplify this equation, subtract the common variables.

(5y-4y)+2

This turns into..

1y+2 or y+2

You might be interested in

A calzone is divided into 24 equal pieces. Glenn and Ben each ate one eighth of the calzone on Thursday. The next day, Ben ate

7nadin3 [17]

Answer:

12 pieces

Step-by-step explanation:

Since on Thursday Glenn and Ben each ate an eight, then total they ate 2*1/8=2/8=¼

¼ of 24 pieces is equivalent to

¼*24=6 pieces

The number of pieces that remain would be 24-6=18 pieces

The one third of leftover ate rhe next day will be equivalent to

⅓ of 18

⅓*18=6 pieces

Remaining pieces next day will be 18-6=12 pieces

Therefore, only 12 pieces out of 24 original pieces remain the following day.

3 0

4 years ago

A farmer uses a lot of fertilizer to grow his crops. The farmer's manager thinks fertilizer products from distributor A contain

noname [10]

Answer:

$Z_{H0}$ = 1.56

Step-by-step explanation:

Hello!

You have two independent samples of fertilizers from distributor A and B, and need to test if the average content of nitrogen from fertilizer distributed by A is greater than the average content of nitrogen from fertilizer distributed by B.

Sample 1

X₁: Content of nitrogen of a fertilizer batch distributed by A

n₁= 4 batches

Sample mean X₁[bar]= 23pound/batch

σ₁= 4 poundes/batch

Sample 2

X₂: Content of nitrogen of a fertilizer batch distributed by B

n₂= 4 batches

Sample mean X₂[bar]= 18pound/batch

σ₂= 5 pounds/batch

Both variables have a normal distribution. Now since you have the information on the variables distribution and the values of the population standard deviations, you could use a pooled Z-test.

Your hypothesis are:

H₀: μ₁ ≤ μ₂

H₁: μ₁ > μ₂

The statistic to use is:

Z= X₁[bar] - X₂[bar] - (μ₁ - μ₂) ~N(0;1)

√(δ²₁/n₁ + δ²₂/n₂)

$Z_{H0}$ = (23 - 18) - 0 = 1.56

√(16/4 + 25/4)

I hope this helps!

8 0

3 years ago

Answer 2. Ella was born early in the morning on a Monday. She got married on the 9074th day of her life. What day of the week wa

m_a_m_a [10]

Answer:

Ella got married on a Wednesday.

Step-by-step explanation:

Let's solve this problem by understanding the following:

Each week is composed by 7 days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday.

So 1 week = 7 days;

Because the married day was on the 9074th day of her life, we can find the number of weeks that 9074 days represent:

$\frac{1 week}{7 days} * 9074 days = 1296.285714 weeks$

This means that 9074 days represent 1296.285714 weeks, which can be interpreted as 1296 entire weeks and a fraction of a week (0.285714).

Now let's calculate how many days 0.285714 weeks represent:

$\frac{7 days}{1 week} * 0.285714 weeks = 2 days$

This means that 9074 days are actually 1296 weeks and 2 days, because Ella was born on a Monday, and because after 7 days (1 week) it is Monday again, after 1296 weeks it is Monday, but as we also calculated 2 extra days, then the married day is two days after a Monday, that is a Wednesday.

In conclusion, Ella got married on a Wednesday.

3 0

3 years ago

I need help with this question I’ll give 15 points

weeeeeb [17]

Answer:

Calculating (5 x 2) violates the order of operations

Step-by-step explanation:

According to the order of operations, multiplies all have equal priority. Therefore, they must be evaluated left to right, not right to left. Evaluating (5 x 2) first is incorrect, and instead (9 x 5) should be calculated first.

3 0

3 years ago

Read 2 more answers

Moses got into an elevator. He went down 5 floors, up 6 floors and down 7 floors. He was then on the Second floor. On what floor

skelet666 [1.2K]

Answer:

Moses got into the elevator at the 8th floor.

Step-by-step explanation:

Let's call the floor which Moses started at x. Going down decreases the floor number and going up increases the floor number. We then form the equation $x-5+6-7=2$ which is the same as $x-8=0$ which means $x=8$ . Moses got in at the 8th floor.

3 0

2 years ago