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Ierofanga [76]
3 years ago
11

3x-4y=16 and 5x+2y=44 using elimination strategy and comparing strategy

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
5 0

3x-4y=16 \\5x+2y=44 \\ \\3x-4y=16 \\10x+4y=88 \\ \\13x=104 \\x=\boxed{104\div13=8}\\ \\3\times8-4y=16 \\24-4y=16 \\-4y=-8 \\y=\boxed{2}

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5.75% of x = 28000<br> What is x?
kkurt [141]

Answer:

x = 486956.5217

Step-by-step explanation:

5.75% of x = 28000

Of means multiply

Change the percent to a decimal

.0575 * x = 28000

Divide by .0575 on each side

.0575/.0575 * x = 28000/.0575

x = 486956.5217

8 0
3 years ago
Mrs eaves bought 5lb 15 oz of apples and 8lb 8oz of oranges. How many more ounces of oranges did she buy than apples!
PtichkaEL [24]
41 more ounce is the answer or 2.5625
4 0
3 years ago
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diamong [38]

Answer:

The parent sine graph y=sin(x) has a range of -1 ≤ y ≤ 1

It crosses the x-axis x = 0° ± 180°n

The maximum points occur when x = 90° ± 360°n and y = 1

The minimum points occur when x = 270° ± 360°n and y = -1

The sketch the graph of function y=sin(x)+2 we simply move the graph of y=sin(x) up 2 units.

So this means it will have a range of 1 ≤ y ≤ 3

It no longer crosses the x-axis.

The maximum points occur when x = 90° ± 360°n and y = 3

The minimum points occur when x = 270° ± 360°n and y = 1

<u>Attached diagram</u>

The parent function y=sin(x) is shown in grey (dashed line)

The function y=sin(x)+2 is shown in red.

4 0
2 years ago
Really really need this answer. Please help!
scZoUnD [109]
Use the cosine function.

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use the inverse of cosine:

x = 80.405

The answer is C.

Hope this helps :)
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