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3 years ago

Need urgent help on this! my grade is falling :(

Mathematics

2 answers:

jarptica [38.1K]3 years ago

8 0

I think the answer is b

ludmilkaskok [199]3 years ago

6 0

Answer:

the answer is b

Step-by-step explanation:

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Answer:

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2 years ago

Write an equation to represent the following statement.<br> 24 is 4 times as great as k.

Artyom0805 [142]

Answer:

24 x 4 = k x 4

Step-by-step explanation:

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3 years ago

Solve (x+2<5) u (x-7>-6)

FrozenT [24]

Answer:

{x | x<3 or x>1}

Step-by-step explanation:

x+2<5

x<5-2

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symbol U means union

5 0

2 years ago

What the answer plz help

ratelena [41]

20 = 40e^-0.1446t
e^-0.1446t = 0.5

t = ln 0.5 / -0.1446
t = 4.8 days

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3 years ago

If three quarters of a number decreased by twenty is equal to eighty two, what is that number?

Studentka2010 [4]

A number is :

$x$

_________________________________

Three quarters of it means :

$\frac{3}{4}x \\$

_________________________________

Decrease by 20 means :

$\frac{3}{4}x - 20 \\$

_________________________________

Equals to 82 means :

$\frac{3}{4}x - 20 = 82 \\$

_________________________________

What is that number ?

x asked so we must solve the above equation for x.

Let's do it....

$\frac{3}{4}x - 20 = 82 \\$

Plus sides 20

$\frac{3}{4}x = 82 + 20 \\$

$\frac{3}{4}x = 102 \\$

Multiply sides by 4

$3x = 102 \times 4$

Divided sides by 3

$x = \frac{102 \times 4}{3} \\$

$x = \frac{102}{3} \times 4 \\$

Simplify

$x = 34 \times 4$

$x = 136$

So that number is 136 .

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

5 0

3 years ago