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2 years ago

8th grade math urgent need help

Mathematics

2 answers:

Rainbow [258]2 years ago

7 0

Answer:

p > 4

Step-by-step explanation:

your welcome

Alex777 [14]2 years ago

7 0

Answer:

p>31/60

−3−(−3p+7)>6p+21(1−3p)

Step 1: Simplify both sides of the inequality.

3p−10>−57p+21

Step 2: Add 57p to both sides.

3p−10+57p>−57p+21+57p

60p−10>21

Step 3: Add 10 to both sides.

60p−10+10>21+10

60p>31

Step 4: Divide both sides by 60.

60p

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stira [4]

Answer:

$100

Step-by-step explanation:

First add up how much she spent

$115+75= $190

Then Subtract from how much she had to spend

$290-190= $100

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2 years ago

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At a high school,18% of the students play football and 6% of the students play afoot all and baseball. What is the probability t

Andreyy89

Answer:

1.08%

Step-by-step explanation:

When you solve problems like these you convert the percentages into fractions and multiply them together.

18%= 18/100 reduced------> 9/50

6% = 6/100 reduced------> 3/50

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6 0

2 years ago

Can someone please help asap?<br> find f(-4) if f(x) = x2 - x

Marianna [84]

Answer:

Step-by-step explanation:

Given function f(x)= $x^{2}-x$

We need to find f(-4) which means we need to find the value of the function when x=-4 .

On substituting x=-4 in the given function:

f(-4)= $-4^{2}-(-4)$

Square of -4 is 16.

Hence, f(-4)= $16+4$

= $20$

Hence the value of the given function f(x)= $x^{2}-x$ when x=-4 is 20.

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2 years ago

kip is using a recipe that calls for 1/4 cup of lemon juice. He has a 6-fluid-ounce of lemon juice. There is are 8 fluid ounces

Mila [183]

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2 years ago

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The inches of rainfall in the rainforest is represented by the function f(x) = 3(x-2)+ 4. What is the average rate of change bet

nata0808 [166]

Answer:

The average rate of change of rainfall in the rainforest between 2nd year and 6th year = <u>3 inches</u>

Step-by-step explanation:

Given function representing inches of rainfall:

$f(x)=3(x-2)+4$

To find the average rate of change between the 2nd year and the 6th year.

Solution:

The average rate of change between interval $[a,b]$ is given as :

$\frac{f(b)-f(a)}{b-a}$

For the given function we need to find the average rate of change between 2nd year and 6th year. $[2,6]$

So, we have:

$f(2)=3(2-2)+4=3(0)+4=4$

$f(6)=3(6-2)+4=3(4)+4=12+4=16$

Thus, average rate of change will be:

$\frac{f(6)-f(2)}{6-2}$

⇒ $\frac{16-4}{6-2}$

⇒ $\frac{12}{4}$

⇒ $3$

Thus, the average rate of change of rainfall in the rainforest between 2nd year and 6th year = 3 inches

8 0

3 years ago