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4 years ago

Please help with this algebra problem!! thanks

Mathematics

2 answers:

saw5 [17]4 years ago

5 0

5.7t < 420 divide both sides by 5.7

5.7 5.7

t < 73.68

slega [8]4 years ago

5 0

Since the opposite of multiplication (5.7 times t) is division, you would divide 5.7 across the equal sign to 420. (420 divided by 5.7) so the answer would be t= 73.68... you can round that if it says too.

so, if a number or anything is right next to a variable (letter) like 5.7t for example, that is multiplication. same with if fractions are present, fractions would be division.

the opposite of multiplication is division, opposite of division is multiplication. and the opposite of addition is subtraction and the opposite of subtraction is addition.

whenever you cross over the equal sign, you use the opposite of what the original side did like add, subtract, multiply, or divide.

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PLEASE HELP THANK YOU

jasenka [17]

Answer:

74 deg

Step-by-step explanation:

Ok, so this is a bunch of steps.

8 0

3 years ago

If I by 20 pens and get them for 55 how much money am I making

QveST [7]

I’m sorry I don’t get what your asking.
Your stating if you purchase 20 pens for 55 dollars how much money your making? Why would you be making any money when your buying items and not selling them.

6 0

4 years ago

Can someone help me with this problem

Alex_Xolod [135]

Answer:

Step-by-step explanation:

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

A(-3, 0) , B(3, 2)

$AB=\sqrt{(3-(-3))^2+(2-0)^2}=\sqrt{6^2+2^2}=\sqrt{36+4}=\sqrt{40}=\sqrt{4\cdot10}=\sqrt4\cdot\sqrt{10}=2\sqrt{10}$

A(-3, 0), D(-2, -3)

$AD=\sqrt{(-2-(-3))^2+(-3-0)^2}=\sqrt{1^2+(-3)^2}=\sqrt{1+9}=\sqrt{10}$

AB = CD and AD = BC

The area of a rectangle:

$A=(AB)(AD)$

Substitute:

$A=(2\sqrt{10})(\sqrt{10})=(2)(10)=20$

The perimeter of a rectangle:

$P=2(AB+AD)$

Substitute:

$P=2(2\sqrt{10}+\sqrt{10})=2(3\sqrt{10})=6\sqrt{10}$

4 0

3 years ago

a bag of a certain type of sand weighs 42 pounds and has a volume of 0.5 cubic feet. a sandbox has a volume of 16 cubic feet. ap

Aleonysh [2.5K]

Answer:

It will take 1344 pounds of sand to fill the sand box.

Step-by-step explanation:

I'm sorry If I got this wrong, have a great day!

8 0

3 years ago

In how many ways can four people sit around a circular table? Seating arrangements are considered different only if at least one

Lapatulllka [165]

Answer:

(x-1)!

Step-by-step explanation:

lets say you want to sit x people around a table you would do x!. but since it doesn't count if you rotate the table you have to divide it by x, so the answer is x!/x = (x-1)!

3 0

3 years ago