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3 years ago

Proofs how do you solve them

1 answer:

3 0

Proofs are... well... just that. They are your proof for why a certain property works or what you did to show your work. So essentially, you just do math like normal, a proof is showing what you did and why it works.

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4. Jane, Andre, and Maria pick apples. Andre picks

Rasek [7]

Answer:

56 apples

Step-by-step explanation:

4 0

3 years ago

Randall, Kira and Sean have 100 baseball cards altogether. Randall has twice as many as Kira and 10 more than Sean. How many bas

TEA [102]

Kira has 22 cards, Randall has 44 cards, and Sean has 34 cards

<u>Solution:</u>

Given that, Randall, Kira and Sean have 100 baseball cards altogether.

Randall has twice as many as Kira and 10 more than Sean.

We have to find how many baseball cards does each person have?

Now, let the number of cards with Kira be "n", then number of cards with Randall will be "2n"

As Randall has "2n" cards, Sean will have 2n – 10

Now, total cards = 100

<em>Randall cards + Kira cards + Sean cards = 100 </em>

2n + n + 2n – 10 = 100

5n = 100 + 10

5n = 110

n = 22

So, kira has 22 cards, then, randall will have 2(22) = 44 cards and cards with sean = 44 – 10 = 34 cards.

Hence, kira has 22 cards, randall has 44 cards, and sean has 34 cards.

8 0

3 years ago

OKAY I GOING HAVE MEATEL BREAK DOWN IF SOMEONE DOES NOT HELP ME THID DUE TODAY AT 11:59PM AND I SO STRESS.

quester [9]

Answer:

A. ?

B. ?

C. ?

1. Different

2. Same

3. Not always

4. multiplying, same, different

5. Don't know

6. and 7. don't have any students or anything so I can't answer that

Step-by-step explanation:

I kinda went off what I knew

Hey at least I tried

4 0

3 years ago

Read 2 more answers

The profits in hundreds of dollars, P(c), that a company can make from a product is modeled by a function of the price, c, they

Jobisdone [24]

The maximum profit is the y-coordinate of the vertex of the parabola represented by the equation.

$P(c)=-20c^2+320c+5120 \\ \\
a=-20 \\
b=320 \\ \\
\hbox{the vertex } (h,k): \\
h=\frac{-b}{2a}=\frac{-320}{2 \times (-20)}=\frac{-320}{-40}=8 \\
k=f(h)=f(8)=-20 \times 8^2+320 \times 8+5120= \\
=-1280+2560+5120=6400$

The maximum value is 6400, but the profit is given in hundreds of dollars, so multiply the value by 100.

The maximum profit the company can make is $640,000.

4 0

3 years ago

Read 2 more answers

Solve for z z/12 equals 4/5

eimsori [14]

This is a proportion problem.

z 4
--- = ----
12 5

We can cross multiply and divide.

5z = 48
z = 9.6

Hope this helps!

7 0

2 years ago