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Andrei [34K]
4 years ago
12

Can I get help simplifying these three questions? Thanks!

Mathematics
1 answer:
Ludmilka [50]4 years ago
6 0
1. 3a - 1 + 18 - a

So you can reorder these, as long as they keep the sign in front of them.

3a - a - 1 + 18, you can reorder it to.

And then just add or subtract.

2a + 17

2. (a+3) - (a + 2)

First you want to open the parenthesis.

To do that, check the symbol before the parenthesis.

If it's a minus, reverse the operator inside the parenthesis. If it's a plus, do nothing.

So just,

a + 3 - a - 2

Then reorder again

a - a + 3 - 2

1

3. 43 + a - 2a

Just subtract, a - 2a, to get -a.

So,

43 - a
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How many students were surveyed about their numbers of visits to the pool last summer?
Sergeu [11.5K]

Answer:

28 students were surveyed about their number of visits to the pool last summer.

4 0
3 years ago
Show that the expression (x+y)(x-y)-14x+49 may be written as the difference of two squares.
iren [92.7K]
For
(a-b)(a+b)=a^2-b^2

x^2-y^2-14x+49
x^2-14x+49-y^2
(x-7)^2-y^2
(x-7-y)(x-7+y)
or
(x-y-7)(x+y-7)
8 0
4 years ago
How I can answer this question, NO LINKS, if you answer correctly I will give u brainliest!
larisa [96]

\huge \bf༆ Answer ༄

Let's solve this using unitary method ~

  • \sf3 \: seconds = 63 \:  meters

  • \sf1\: second= 63 \div 3 \:  meters

  • \sf1\: second= 21 \:  meters

  • \sf5\: seconds= 21 \times 5 \:  meters

  • \sf5\: seconds= 105 \:  meters

Therefore , the ostrich will run 105 meters in 5 seconds.

5 0
3 years ago
Jim and Jackie are married with three children at home and a mortgage. Jim’s net pay per year is $67,000 and Jackie does not hav
rodikova [14]

The correct option is that they should work on their plan for managing income.

<h3>How to illustrate the information?</h3>

Given that Jim and Jackie are married with three children and have a home at mortgage.

The net pay per year of Jim is $67,000 and Jackie do not earn at all. The mortgage expenses and monthly expenses are

$(2,800+2,700) = $5,500, not much as compared to the total income.

Also, Jim contributes 15% of his income , i.e., $10050 into the retirement fund and also they have savings of $5,000.

In addition, there is a $500,000 life insurance policy on Jim and a $100,000 policy on Jackie.

Therefore, looking at all of these, it can be concluded that the net income of Jim per year is not bad at all to manage the expenses, they just have to work on it little more to run the family smoothly.

Thus, the correct option is that they should work on their plan for managing income.

Learn more about income on:

brainly.com/question/25745683

#SPJ1

Complete question:

Jim and Jackie are married with three children at home and a mortgage. Jim’s net pay per year is $67,000 and Jackie does not have income. Their mortgage payment of $2,800 includes insurance on their home. They have additional monthly expenses of $2,700. Jim contributes 15% of his earnings to a retirement fund and they have $5,000 in savings. There is a $500,000 life insurance policy on Jim and a $100,000 policy on Jackie. As their financial advisor, what part of Jim and Jackie’s financial plan would you encourage them to work on? a. They should work on their plan for managing income. b. They should work on their plan for managing their liquidity. c. They should work on their plan for protecting their assets. d. They should work on their plan for protecting their income.

3 0
2 years ago
Solve for b:4 = -2/3(5) + b
saveliy_v [14]

Answer:

\frac{22}{3} = b

or

7\frac{1}{3} = b

(they are the same value, just different ways of writing it)

Step-by-step explanation:

4 = -\frac{2}{3} (5) + b

simplify

4 = -\frac{10}{3} + b

now use inverse operations

4 = -\frac{10}{3} + b

+\frac{10}{3}  +\frac{10}{3}

\frac{22}{3} = b

4 0
4 years ago
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