Answers:
<u>Reduce:</u>
Here we gave to simplify the expressions:
9)
Grouping similar terms:
Applying common factor in the first parenthesis and common factor in the second parenthesis:
This is the answer
11)
Rearranging the terms:
Applying common factor in the first parenthesis and common factor in the second parenthesis:
This is the answer
<u>Multiply:</u>
19)
Multiplying both fractions:
Dividing numerator and denominator by 3 and simplifying:
This is the answer
21)
Operating with cross product:
Grouping similar terms and factoring:
This is the answer
<u>Divide:</u>
29)
Simplifying:
This is the answer
33)
Factoring numerator and denominator:
Simplifying:
This is the answer
37)
Applying the distributive property in numerator and denominator:
Grouping similar terms and factoring by common factor:
Dividing by in numerator and denominator and simplifying:
This is the answer
So
100%=original
25% discount
100-25=75
it is 180 sale
75%=180
find 100%
a hack is to recognize that 75/3 times 4=100 so
75%=180
divide 3
25%=60
times 4
100%=240
the real way is proportions
75:180 =100:x
75/180=100/x
multiply both sides by 180x
75x=18000
divide 75
x=240
origitnal price=$240
Given :7872 ÷ 305.
Because it's estimation. So, we need to estimate the number 7872 to 8000.
In order to divide 8000 by a number we need to estimate 305 to the 400. Because 400 is exact divisor of 8000.
If we divide 8000 by 400 we get 20.
And it's obviously less then 60000 ÷ 300= = 200.
20 < 200.
<h3>Therefore, Harrison is absolutely correct.</h3>
Part A is basically asking you for the GCF (greatest common factor) between 63 and 36. To find this you find all the numbers that can be multiplied to form each number.
36:
1 * 36
2*18
3*12
4*9
6*6
63:
1*63
3*21
9*7
The GCF is 9.
Part B is asking how much the GCF can go into each type of flower.
4 rows of geraniums
7 rows of marigolds