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frez [133]
3 years ago
7

What is a equaled sign

Mathematics
2 answers:
N76 [4]3 years ago
6 0
An equal sign is a symbol that looks like =
topjm [15]3 years ago
5 0
An equal sign is a symbol in mathematics.

It is to indicate that the given terms are <span>equal. 

It is also used to </span>indicate a mathematical <span>equality. 

An equal sign looks like ( </span>= ) this. 
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two mechanics worked on a car. The first mechanic worked for 10 hours, and the second mechanic worked for 5 hours. Together they
Lerok [7]
Let's make,
mechanic #1's rate = x
mechanic #2's rate = y

* Their rate is dollars per hour ($/hr)

mechanic #1 worked for 20 hours (hr × $/hr = $)
20x = money earned by mech#1

and mechanic #2 worked for 5 hours
5y = money earned by mech#2

together they charged a total of $1150. So the amount of money earned by both mechanics.

20x + 5y = 1150

the sum of the two rates was $95 per hour.

x + y = 95

which means
x = 95 - y

plug (95 - y) in for "x" in the other equation to get everything in terms of one variable.

20(95 - y) + 5y = 1150

solve for y

1900 - 20y + 5y = 1150
1900 - 15y = 1150
-15y = 1150 - 1900
-15y = -750
y = -750/-15
y = 50 $/hr

Now use this to solve for x

x + y = 95
x + 50 = 95
x = 95 - 50
x = 45 $/hr

mech#1 charged 45$/hr
mech #2 charged 50$/hr
7 0
3 years ago
Please help! 10 points
valina [46]
3x^2+16x-35 is the answer and I need 20 word
4 0
3 years ago
How do you do 5+5?
steposvetlana [31]

Answer:

If you had 5 apples and Johnny gave you five more how much do you have? Lets count

10 OMG 5+5 is 10

6 0
3 years ago
Please answer!<br> (1) what mistake was made?<br> (2) what suggestion could help avoid that?
AveGali [126]

Answer:

1) the signs of the numbers is not in standard form

2) always make sure that the signs of the two equations is standarised and then solve

please follow me

3 0
3 years ago
A 12 ounce bottle of cleaner cost $3.74 a 16 ounce bottle of cleaner cost $5.34 which bottle would be the best spot which cost l
Valentin [98]

Answer:

12 ounce bottle

Step-by-step explanation:


12 x 3 = 36

16 x 5 = 80

So, that means the 12 ounce bottle is cheaper. :)


5 0
3 years ago
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