If the question is what is the value of expression 7-3 then the answer is 4
Given:
unit price per pound = 21.5 cents
bought 8 pound package
find: total amount paid for 8 pound package.
We need to convert cents into dollars to avoid confusion.
21.5 cents x 1 dollar / 100 cents = 21.5 dollar / 100 = 0.215 dollars
0.215 dollars * 8 pounds = 1.72 dollars.
my answer is B. $1.72
Answer:
39.82
Step-by-step explanation:
to find the entire area of the figure, you'll have to split it up into two parts:
a. triangle
b. semi-circle
therefore, the formula for the area of a triangle is 1/2(base)(height). in simpler terms, it means to multiply 1/2 by the base and the height. in this case, multiply 1/2 x 5 x 12, which gives you 60/2, which ultimately gives you 30.
to find the area of the semi circle, use the area formula for a circle and divide the area by 2. the formula is: π
. so, plug in your lengths. this gives you, π(5)^2. divide this by two. you should get an answer of 9.82
finally, add your two areas (30+9.82), which equals 39.82
hope this helps!<3
Answer:
D) Multiply A by -4 and B by 5
Step-by-step explanation:
5x-2y=10
4x+3y=7
----------------
-4(5x-2y)=-4(10)
5(4x+3y)=5(7)
----------------------
-20x+8y=-40
20x+15y=35
---------------------
23y=-5
y=-5/23
5x-2(-5/23)=10
5x+10/23=10
5x=10-10/23
5x=230/23-10/23
5x=220/23
x=(220/23)/5
x=(220/23)(1/5)
x=220/115
x=44/23
In this, we have to see if we can get a common ratio between both of the triangles. Lets start by dividing 5 from 10. From this, we get 2. If we divide 7 from 14, we also get 2, so we know that they are similar. Therefore, both of them are similar because AB/FD = AC/FE
