Answer:
A.) 15.60=11.40+10x
Step-by-step explanation:
okay we know kathy spent 15.60 in total at the post office
so we know 15.60 will be after the equal sign.
she paid 11.40 only on the package
and rest of money was on stamps.
15.60-11.40= 4.20
so she used 4 dollars and 20 cents for stamps if she bought 10 we need to divied 4.20/10=0.42
0.42 cents for each stamps so we need a equation that will give us this answer.
Me i go thru each one and solve for x
lucky for me i just need to solve one
because equation A solves it correctly.
15.60=11.40+10x
subtract 11.40 on both sides
15.60-11.40
4.20=10x
now we divide 10 on each side
4.20/10=0.42
x=0.42
A vertex can be the max or min. The vertex is the highest point or lowest point of a function.
Answer
w=18
Step-by-step explanation:
We conclude that the equation evaluated in t = 6 and u = 14 is equal to 412.
<h3>
How to evaluate an expression?</h3>
Here we have an expression with two variables, t and u.
6t - 32u
And we want to evaluate it in t = 6 and u = 14.
This means that we need to replace the two variables in the equation by the given numbers, so we replace the "t" with a 6, and the "u" with a 14, doing that we get:
6*6 - 32*14
Now we can solve that:
6*6 - 32*14
36 - 448 = 412
We conclude that the equation evaluated in t = 6 and u = 14 is equal to 412.
If you want to learn more about evaluating expressions:
brainly.com/question/4344214
#SPJ1
Answer:
B
Step-by-step explanation:
surface area is finding the area of each portion of the net and adding them all up together. all the triangles are congruent, so we can start by finding the area of one of them and multiplying that area by 4 (since there are 4 triangles in this net). the formula for the area of a triangle is 1/2 bh. this is (1/2)(5.95)(5.1) which equals approximately 15.17. 4 multiplied by this is 60.68. the area of the square is length multiplied by width, which is 26.01. 60.68+26.01=86.69, which is the closest to answer choice B.
