Answer:
1) Total cost is $27.84
2) a)You first have to divide the product price by their price per pound to find the pound value
2)b) Find their values
2)c) Yolanda bought 3.2 pounds of mixed fruit and 2.8 pounds of dried fruit
3) a) We made a linear equation
3)b) Found the value of x where x is representing the value of pounds
5) She used 6.72 of shampoo
Explanation:
1) Total cost = 2.32(3.50)+(2.32)(2)(4.25)
=8.12+(2.32)(2)(4.25)
=8.12+(4.64)(4.25)
=8.12+19.72
=27.84
Total cost is $27.84
2)a) You first have to divide the product price by their price per pound to find the pound value
2)b) find their values
2)c) 21.60/6.75=x
11.90/4.25=y
where, y = value of dried fruit pound value
x= value of mixed fruit value
calculate
Rewrite equations:
3.2=x;2.8=y
Step: Solve3.2=xfor x:
3.2=x
3.2+−x=x+−x(Add -x to both sides)
−x+3.2=0
−x+3.2+−3.2=0+−3.2(Add -3.2 to both sides)
−x=−3.2
−x/−1 = −3.2/−1
(Divide both sides by -1)
x=3.2
Step: Substitute3.2forxin2.8=y:
2.8=y
2.8=y
2.8+−y=y+−y(Add -y to both sides)
−y+2.8=0
−y+2.8+−2.8=0+−2.8(Add -2.8 to both sides)
−y+0=−2.8
−y+0/−1 = −2.8/−1
(Divide both sides by -1)
y+0=2.8
y = 2.8
Yolanda bought 3.2 pounds of mixed fruit and 2.8 pounds of dried fruit
3) a) We made a linear equation
Let's make an equation
3.50x+0.40=20.00
3)b) 3.5x+0.4=20
Step 1: Subtract 0.4 from both sides.
3.5x+0.4−0.4=20−0.4
3.5x=19.6
Step 2: Divide both sides by 3.5.
3.5x/3.5 = 19.6/3.5
x=5.6
Mario bought 5.6 pounds of trail mix
5) 4.8 + 5.4 + 6.6
=10.2+6.6
=16.8
Since she used 2/5 of shampoo we will multiply 2/5 by 16.8
= (16.8)(2)/5
= 33.6/5
=6.72
She used 6.72 of shampoo
Then, substract 6.72 from 16.8
=16.8-6.72
=16.8−6.72
=16.8+−6.72
=10.08
10.08 is the remaining ounces
Therefore, she used 6.72 ounce