3 -
=
- 7
First, simplify
to
/ Your problem should look like: 3 -
=
- 7
Second, simplify
to
/ Your problem should look like: 3 -
=
- 7
Third, multiply both sides by 9 (the LCD of 9,3). / Your problem should look like: 27 - 2b = 3b - 63
Fourth, add 2b to both sides. / Your problem should look like: 27 = 3b - 63 + 2b
Fifth, simplify 3b - 63 + 2b to 5b - 63. / Your problem should look like: 27 = 5b - 63
Sixth, add 63 to both sides. / Your problem should look like: 27 + 63 = 5b
Seventh, simplify 27 + 63 to 90. / Your problem should look like: 90 = 5b
Eighth, divide both sides by 5. / Your problem should look like:
= b
Ninth, simplify
to 18. / Your problem should look like: 18 = b
Tenth, switch sides. Your problem should look like: b = 18
Answer:
b = 18
I will set it up and you finish.
Let a = adult
Let s = students
s = 2a
Here is your system of equations:
a + s = 366
s = 2a
Take it from here.
F is the variable. since f is equal to 6.1 you can plug it into the other equation. you multiply 2 and 6.1. this equals 12.2 then you add two. the final answer is 14.2
Answer:
- 689·1910 = 1315990
- because the numbers are whole numbers
Step-by-step explanation:
Rounding a whole number to the nearest whole number does not change its value. If the estimate is to use numbers rounded like that, it must be the actual product when the numbers are whole numbers.
689·1910 = 1315990
The package weighs 30 ounces.
Step-by-step explanation:
Mailbox Plus charges;
Charges per ounce = $0.25
Let,
x be the number of ounces.
M(x)=5+0.25x
United packges charges;
Charges per ounce = $0.35
U(x) = 2+0.35x
Cost will be same when the functions are equal;
M(x) = U(x)
Dividing both sides by 0.10
The package weighs 30 ounces.
Keywords: functions, division
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