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AfilCa [17]
3 years ago
15

__ × (-1/2 × ___ = 20​

Mathematics
2 answers:
vovangra [49]3 years ago
5 0

Step-by-step explanation:

Thank you 5635e3 guvihbbyi5f4fnuojbubgcr63dd6r

Fiesta28 [93]3 years ago
3 0

Answer:20x(-1/2x-2)

Step-by-step explanation:

You might be interested in
Help!
Olin [163]

Answer:

2/16

1/8

Step-by-step explanation:

8/1=8

2/16=0.125 which is equal to 1/8

2/14=1/7

1/8=1/8 is 2/16 simplified so they are the same

14/2=7

6 0
3 years ago
A collection of 108 coins containing only quarters and nickels is worth $21.
Rudiy27

Answer:

The value could replace q is 108 - n ⇒ the last answer

Step-by-step explanation:

* Lets study the values of quarters and nickles

- One quarter = 25 cents

- One nickle = 5 cents

- The number of coins is 108

- The coins are nickles or quarters only

- The coins worth $ 21

* Lets solve the problem

∵ The number of coins is 108 coins

- Let the quarter is q and the nickel is n

∴ q + n = 108 ⇒ (1)

∵ The coins worth $21

∵ $ 1 = 100 cents

∴ $21 = 21 × 100 = 2100 cents

∵ The quarter = 25 cents

∵ The nickels = 5 cents

∴ 25q + 5n = 2100 ⇒ (2)

- To find the value which replace q use equation (1)

∵ q + n = 108 ⇒ subtract n from both sides

∴ q = 108 - n

* The value could replace q is 108 - n

3 0
3 years ago
Read 2 more answers
Write 6/9=a/b in simplest form
kobusy [5.1K]

Answer:

2/3 = a/b

Step-by-step explanation:

6/9 = a/b

2/3 = a/b

8 0
3 years ago
Make x the subject of the formula<br> mx=y
Alika [10]
You’re going to have to single out the x. So, the way to go is divide both sides by m. Then you’re left with

x = y/m
3 0
3 years ago
Elenas aunt bought her a $150 savings bond when she was born.When elena is 20 years old,yhe bond will have earned 105% in intere
steposvetlana [31]

Answer:

$307.5.

Step-by-step explanation:

We have been given that Elena's aunt bought her a $150 savings bond when she was born.When Elena is 20 years old, the bond will have earned 105% in interest.  

To find bond's value after 20 years we will add 105% of 150 to 150.

\text{Bond's value after 20 years}=150+(\frac{105}{100}\times 150)

\text{Bond's value after 20 years}=150+(1.05\times 150)

\text{Bond's value after 20 years}=150+157.5

\text{Bond's value after 20 years}=307.5

Therefore, the bond will be worth $307.5, when Elena will be 20 years old.

3 0
3 years ago
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