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3 years ago

10

Today is rlly not my day...can someone pls help me my work is due by 11:59 tonight I’m rlly tired and falling behind in math pls

help!

1 answer:

Margarita [4]3 years ago

7 0

Answer:

c

Step-by-step explanation:

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Jared is reading a 300-page book he borrowed from the library. So far, he has read 85 pages. He has 5 more days to read the book

son4ous [18]

Answer:

43 pages a day

Step-by-step explanation:

(300-85) divided by 5=?: equation

215 divided by 5=?: subtract the groupings

43=1: divide and answer

5 0

3 years ago

Which expression is equivalent to - 2/5(x+0.8) + 1/50?

Rudik [331]

Answer:

-0.4x - 0.30 or $-\frac{2}{5} - \frac{3}{10}$

Step-by-step explanation:

Change all the fractions to decimals.

-2/5 = -0.4 Distribute that over x and 0.8 1/50 = 0.02

you get -0.4x -0.32 + 0.02

Change all the decimals to fractions.

0.8 is 8/10 so -2/5 times 8/10 is -16/50

-2x/5 - 16/50 + 1/50 add or subtract the fractions to get -15/50 Then reduce (÷5)

-2x/5 - 3/10

6 0

4 years ago

Solve the system of linear equations by elimination.<br> 3x + 2y = 3<br> 3x - 2y = -9<br> solution:

Aliun [14]

The solution is: (-1,3)

7 0

3 years ago

Please at least help me with one of them cause I have no idea

Fudgin [204]

Answer:

Solving $v = \frac{4}{3}\pi r^3$ for r gives us: $r=\sqrt[3]{\frac{3v}{4\pi}}$

Solving $a_{ave} = \frac{v_2-v_1}{t_2-t_1}$ for v2 gives us: $v_2 = (t_2-t_1)a_{ave}+v_1$

Step-by-step explanation:

Solving an equation for a variable or constant means that we have to isolate the value on one side of the equation or write the whole equation in terms of that variable or constant.

Now,

Solving $v = \frac{4}{3}\pi r^3$ for r

$v = \frac{4}{3}\pi r^3$

Multiplying whole equation by 3/4

$\frac{3}{4}.v = \frac{3}{4}.\frac{4}{3} \pi r^3$

$\frac{3}{4}v = \pi r^3$

Dividing by Pi on both sides

$\frac{3v}{4\pi} = \frac{\pi r^3}{\pi}\\\frac{3v}{4\pi} = r^3$

Taking cube root on both sides

$\sqrt[3]{r^3} = \sqrt[3]{\frac{3v}{4\pi}} \\r = \sqrt[3]{\frac{3v}{4\pi}}$

Now

Solving $a_{ave} = \frac{v_2-v_1}{t_2-t_1}$ for v2

Multiplying both sides by (t2-t1)

$(t_2-t_1)a_{ave} = \frac{v_2-v_1}{t_2-t_1}(t_2-t_1)\\(t_2-t_1)a_{ave} = v_2-v_1$

Adding v1 on both sides

$(t_2-t_1)a_{ave}+v_1 = v_2-v_1+v_1\\(t_2-t_1)a_{ave}+v_1 = v_2$

Hence,

Solving $v = \frac{4}{3}\pi r^3$ for r gives us: $r=\sqrt[3]{\frac{3v}{4\pi}}$

Solving $a_{ave} = \frac{v_2-v_1}{t_2-t_1}$ for v2 gives us: $v_2 = (t_2-t_1)a_{ave}+v_1$

6 0

3 years ago

I need help on number three all the info is on the page so plz help me thanks

babymother [125]

Basically it's 2/3 for horses/acres so the answer would be 107.5 acres at least because 75/107.5 is 2/3.

3 0

4 years ago