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10 months ago

Please answer the question below:

Mathematics

1 answer:

irinina [24]10 months ago

5 0

please give brainliest<3

Answer:

y=3

Step-by-step explanation:

(3 + 12) / (7 - 12) = (15) / (-5) = -3

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2x2-y if x=3 and y=8

9966 [12]

The answer is 0 because when you plug in the 3 and the 8 into the equation and do order of operations you will get 0.

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3 years ago

What are the Terms for 8x+6

densk [106]

Answer:Simplifying

8x + 6

Reorder the terms:

6 + 8x

Factor out the Greatest Common Factor (GCF), '2'.

2(3 + 4x)

Final result:

2(3 + 4x)

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3 years ago

A coin collector has $45 in just dimes and quarters in a piggy bank he counted all the coins and there are 240 total how many ea

Whitepunk [10]

Answer:

The number of <u>dimes are 100</u> and number of <u>quarters are 140.</u>

Step-by-step explanation:

Let the number of dimes be 'd' and quarters be 'q'.

Given:

The sum of amount is $45.

The total number of coins are 240.

1 dime = $0.10

∴ 'd' dimes = $\$0.10d$

1 quarter = $0.25

∴ 'q' quarters = $\$0.25q$

Now, as per question:

$d+m=240-----1\\0.1d+0.25q=45---2$

Multiplying equation (1) by -0.1 and adding the result to equation (2), we get:

$-0.1d-0.1q=240\times -0.1\\-0.1d-0.1q=-24\\0.1d+0.25q=45\\-----------\\0.15q=21\\q=\frac{21}{0.15}=140\\\\d=240-q=240-140=100$

Therefore, the number of dimes are 100 and number of quarters are 140.

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3 years ago

45 POINTS WILL GIVE BRAINLIEST PLS HELPPPPPPPP

OLEGan [10]

A for both of them add all the numbers up and divide by the amount of numbers to get your iQR but A is right for both

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1 year ago

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Naman is 4 times as old as his sister now.

nikklg [1K]

Answer:

Naman is 12 years old

Step-by-step explanation:

This means his sister is 3 which means in 20 years Naman will be 32 and his sister will be 23. Double 23 and you get 46 and 46 - 32 is 14

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3 years ago

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