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Nitella [24]
3 years ago
12

What is the answer to: −15+(−22)−10+5 Please explain.

Mathematics
1 answer:
iren2701 [21]3 years ago
3 0

Answer:

-42

Step-by-step explanation:

you just add everything together

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Travis has a savings account that his parents opened for him. It pays 6% annual interest. His uncle also opened an account for h
mezya [45]
So let's say the amounts are "a" and "b", at 6% and 8% respectively.

how much is 6% of a?  well (6/100) * a, or 0.06a.
how much is 8% of b?  well (8/100) * b, or 0.08b.

so hmm whatever "a" and "b" amounts are, we know that their yield is $100, thus 0.06a + 0.08b = 100.

now, there's more money in "a" than in "b", 500 bucks more, so whatever "b" is, we know that a = b + 500.

\bf \begin{cases}
0.06a+0.08b=100\\
\boxed{a}=b+500\\
----------\\
0.06\left( \boxed{b+500} \right)+0.08b=100
\end{cases}
\\\\\\
0.06b+0.08b+30=100\implies 0.02b=70\implies b=\cfrac{70}{0.02}
\\\\\\
b=3500

how much was deposited in the 6% one?  well, a = b + 500.
8 0
3 years ago
If bob makes 40 mintues of long distance call for the month, which plan cost more
lora16 [44]

First, look at the x axis (this is the one labeled Minutes Used per month)

Find the number 40, then look at where the lines meet on that line. The red line for Plan B it’s at 8 dollars. The blue line for Plan A is at 4 dollars.

Plan B costs more.

To find the difference, subtract 4 from 8.

$8 - $4 = $4

Plan B costs 4 dollars more than Plan A.

If you have any further questions feel free to ask.

Hope this helps.

4 0
3 years ago
How often does always never sometimes
Vanyuwa [196]

1) sometimes

2) always

3) always

8 0
2 years ago
What ratio forms a proportion with 2/3?<br> A. 2/4 B. 3/4 C. 4/6 D. 3/2
LekaFEV [45]

Answer:

c

Step-by-step explanation:

because you can simplify 4/6 by 2.

2 goes into 4 twice and then 2 goes into 6 3 times

2/3

3 0
2 years ago
The product of three integers x, x+2, and x-5 is 240. What are the integers?
Dafna11 [192]

Answer:

  8, 10, 3

Step-by-step explanation:

For finding real solutions to cubic equations and those of higher degree, I find a graphing calculator to be useful. The problem can be cast in the form ...

  f(x) = 0

where f(x) is the difference between the product of the integers and 240:

  f(x) = x(x +2)(x -5) -240

Then all we need to do is ask the calculator to show the x-intercept. It is x=8.

So, the three integers are ...

  • x = 8
  • x+2 = 10
  • x -5 = 3

7 0
3 years ago
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