Answer:
Solution given;
<ABD=<BAC+<ACB
<u>Since</u><u> </u><u>exterior</u><u> </u><u>angle</u><u> </u><u>of</u><u> </u><u>a</u><u> </u><u>triangle</u><u> </u><u>is</u><u> </u><u>equal</u><u> </u><u>to</u><u> </u><u>the</u><u> </u><u>sum</u><u> </u><u>of</u><u> </u><u>two</u><u> </u><u>opposite</u><u> </u><u>interior</u><u> </u><u>angle</u>
26x+20=19x-15+9x+25
solve like terms
26x+20=28x+10
subtracting both by 10
26x+20-10=28x+10-10
Subtracting both side by 26x
10=28x-26x
2x=10
dividing both side by 2
2x/2=10/2
x=5
Now
<ABD=26*5+20=l50°
<u>T</u><u>h</u><u>e</u><u> </u><u>v</u><u>a</u><u>l</u><u>u</u><u>e</u><u> </u><u>o</u><u>f</u><u> </u><u><</u><u>A</u><u>B</u><u>D</u><u> </u><u>i</u><u>s</u><u> </u><u>1</u><u>5</u><u>0</u><u>°</u>
Jeff should purchase 25 , 2 ounce box and it will cost him $27.5 .
<h3>What is an ounce ?</h3>
Ounce is defined as 1/16 part of a pound.
It is given that
price of a 2-ounce box is $1.10,
a 16-ounce box is $8.98
a 32-ounce box is $17.98.
As Jeff wants to purchase total 48 ounce chocolates , the box which is more cheaper has to be determined
The price of 1 ounce in a 2 ounce box is $1.1 /2 = $ 0.55
The price of 1 ounce in a 16 ounce box is $8.98 /16 = $ 0.56
The price of 1 ounce in a 32 ounce box is $17.98 /32 = $ 0.56
Therefore Jeff should purchase 25 , 2 ounce box and it will cost him $27.5 .
To know more about Ounce
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If you mean like a method to solve it fast here I have 1 solution I usually use;
3x2.7
3x.7=2.1
3x2=6
Then in the question there is 1 number behind the decimal point so the answer should have 1 number behind as well.
=8.1
C
Because they can both be simplified to 2/3
D. Distributive property is when you multiply the number in the outside of the parentheses into every number inside the parentheses
4(9+2)
You multiply 4x9 and 4x2