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3 years ago

Is there always an “invisible” 1 in front of every variable? I need this for a math assignment, thanks.

Mathematics

1 answer:

vivado [14]3 years ago

8 0

Answer:

yes

Step-by-step explanation:

In front of every variable there is an invisible one which is being multiplied by the variable. This doesn't affect the variable because anything times one is still itself. The most common usage of the one is when combining like terms such as x+x. Since the equation is really 1x+1x, it would be 2x.

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Davinder earns 4.5% interest per year on the money she has saved in her bank account. She starts off with £200. How much is in h

Mariulka [41]

Answer:

249.24

Step-by-step explanation:

Year Interest Total

Interest Balance

0 -- -- £200.00

1 £9.19 £9.19 £209.19

2 £9.61 £18.80 £218.80

3 £10.05 £28.85 £228.85

4 £10.51 £39.36 £239.36

5 £11.00 £50.36 £250.36

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3 years ago

sara says. "if you subtract 14 from my number and multiply the difference by -4, the result is -80." What is Sara's number?

statuscvo [17]

Answer:

Step-by-step explanation:

-80/-4=20+14=6

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3 years ago

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ludmilkaskok [199]

Hello! I can help you with this! So, you and 3 friends are 4 people. You split $536. To find the amount each of you got, Do division. 536/4 is 134. Each friend got $134 in the first month. You made 224 in 2 months. Let’s subtract to see how much more each of them got. 224 - 134 is 90. Now, multiply by 4 to find out how much profit was made. 90 * 4 is 360. The shop made $360 in the second month.

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3 years ago

Moses is solving the problem below.

Studentka2010 [4]

Answer:

the answer is $8.29

Step-by-step explanation:

1.60 marked up by 60% in decimal form is .60

multiply that .60 by 1.60 and you get .64

you add .64 to 1.60 and you get 2.56

you multiply 2.56 by 3 and you get 7.68

you have a 8% sales tax so you multiply 0.08 by 7.68

you will get .61 you add that to 7.68 to get $8.29

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2 years ago

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valentina_108 [34]

Think the awnser is$11040

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3 years ago