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3 years ago

PRETTY EASY QUESTION! LOTS OF POINTS!

Mathematics

2 answers:

Nuetrik [128]3 years ago

6 0

Well, you need
1: at least one variable
2: A formula... example: f(x)
3: numbers

Tju [1.3M]3 years ago

4 0

Variable and a formula

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A group of people are going on a 5 mil hike. They walked 2 1/10 miles in the morning and 1 1/4 mils during the first hr of the a

Ugo [173]

Answer: 1 13/20 miles

Explanation:

$5 - 2\cfrac{1}{10} - 1 \cfrac{1}{4} = 5 \cfrac{0}{20} - 2\cfrac{2}{20} - 1 \cfrac{5}{20} = 4 \cfrac{20}{20} - 2\cfrac{2}{20} - 1 \cfrac{5}{20} = 1 \cfrac{13}{20}$

8 0

3 years ago

A community garden center host a plant giveaway every spring to help community members start there gardens. Last year the give a

OlgaM077 [116]

Answer:

<h2>195 plants (verified) ✅</h2>

Step-by-step explanation:

We will use a proportion to solve this.

x/y = x/y

let x = the number of families in each case

let y = the number of plants in each case

Since we don't know the second y, we will leave that as y and solve for it.

50/150 = 65/y

Cross-multiply

50y = 9750

Divide

195 = y

Now, we can check this by substituting the value of y back into the equation and seeing if both sides equal.

50 (195) = 9750

9750 = 9750 ✅

5 0

3 years ago

A group of 50 New York psychology students got a mean score of 530 on the psychology GRE with a standard deviation of 80. These

lesantik [10]

Answer: No, New York students are not truly more nerdy than the California students.

Step-by-step explanation:

Since we have given that

Number of students in a group = 50

Mean score of New York psychology = 530

Mean score of California psychology = 515

Standard deviation = 80

So, we will find t-distribution first.

$t=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\t=\dfrac{530-515}{\dfrac{80}{\sqrt{50}}}\\\\t=1.32$

Let α = 5% = 0.05

So, $t_{\alpha,2}=2.920$

Since t < t(critical value)

No, New York students are not truly more nerdy than the California students.

3 0

4 years ago

7 over 3 divided by 9

podryga [215]

Answer:

7/27 or 0.259259259259

Step-by-step explanation:

7 0

3 years ago

What is the value of 9a + 6b?

Svetlanka [38]

i) 3a+2b=9 /*3

9a+6b=27

ii) 8x+6y=60 /: 2

4x+3y=30

6 0

4 years ago

Read 2 more answers