3 years ago

How many liters are in 1 dekaliter?

Mathematics

1 answer:

shepuryov [24]3 years ago

7 0

Answer:

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Step-by-step explanation:

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AFLATI 2 NUMERE STIIND CA AL DOILEA NUMAR ESTE DE 7 ORI MAI MARE DECITPRIMUL IAR SUMA DINTRE DUBLUL PRIMULUI NUMAR SI TRIPLUL CE

postnew [5]

Answer:

The numbers are 20 and 140

Step-by-step explanation:

The question in English is

Find 2 numbers knowing that the second number is 7 times greater than the first, and the sum between the double of the first number and the triple of the second is 460

Define the variables

Let

x ----> the first number

y ----> the second number

we know that

$y=7x$ -----> equation A

$2x+3y=460$ ----> equation B

Solve the system of equations by substitution

Substitute equation A in equation B

$2x+3(7x)=460$

solve for x

$2x+21x=460$

$23x=460$

$x=20$

Find the value of y

$y=7x$ ----> $y=7(20)=140$

The numbers are 20 and 140

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3 years ago

The regular price of a video game is $19.50 The store is having a 40% off sale.

Afina-wow [57]

A. The discount is 7.80 much

B. $11.7

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3 years ago

Martha opens a new cell phone store. She spends $24,500 purchasing inventory to sell, buying furniture, and advertising her busi

dexar [7]

Answer:500

Step-by-step explanation:

Step by step

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2 years ago

Pieces of Mail. The number of pieces of mail

Zina [86]

Answer:

20.8%

Step-by-step explanation:

The number of the pieces of mail handled by the U.S postal service decreased from 212,000,000,000 to 168,000,000

Therefore the percentage decrease can be calculated as follows

= 212,000,000,000-168,000,000,000

= 44,000,000,000/212,000,000,000 × 100

= 0.2075 × 100

= 20.8 %

Hence the percentage decrease is 20.8%

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2 years ago

What time is 46 minutes before 2:10 pm

Temka [501]

The time would be 1:24 pm

6 0

2 years ago

Read 2 more answers