2 years ago

3x – 4y = 12

Mathematics

1 answer:

Valentin [98]2 years ago

5 0

Answer:

Step-by-step explanation:

the answer is d hope it helps

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Three numbers have a sum of 82. The second number is twice the first number. The third number is 7 more than the second number.

iVinArrow [24]

Answer: The number is 15

Step-by-step explanation: basically the equation you should solve is

(x)+(2x)+(2x+7)=82

5x+7=82

5x= -7+82

5x=75

5/5x=75/5

x=15

3 0

2 years ago

Margaret’s bottle of shampoo is 7/8 full. She uses 1/3 of the shampoo in the bottle to wash the dog. Estimate what fraction of s

AleksandrR [38]

Fraction of shampoo left = $\frac{13}{24}$

Solution:

Given fraction of full shampoo $=\frac{7}{8}$ .

Fraction of shampoo Margaret used $=\frac{1}{3}$

Fraction of shampoo left = Full shampoo – fraction of shampoo used

$=\frac{7}{8}-\frac{1}{3}$

To make the denominators same do cross multiplication.

$=\frac{7\times3}{8\times3}-\frac{1\times8}{3\times8}$

$=\frac{21}{24}-\frac{8}{24}$

$=\frac{21-8}{24}$

$=\frac{13}{24}$

Hence $\frac{13}{24}$ of the shampoo bottle is left.

8 0

3 years ago

Please I will give brainliest

atroni [7]

Answer:

I think its D because i did the math for it but tell me if im wrong.

Step-by-step explanation:

I hope you have a nice day

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2 years ago

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Which expression can be used to convert 22 Australian dollars to US? Assume 1.2 Australian dollars equal 1 US dollar

erastovalidia [21]

1.2 A$ = 1 US$
22 A$ = x US$ Cross multiply

1.2*x = 22 * 1 Divide by 1.2
x = 22/1.2
x = 18.3 US $

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2 years ago

The range of a graph is associated with what?

Nady [450]

The range of a graph is associated with the y axis

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3 years ago

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