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Jlenok [28]
2 years ago
8

I need help please really fast

Mathematics
1 answer:
Elina [12.6K]2 years ago
3 0

Answer:

x =  \boxed{2}\:  and\: x =  \boxed{ \frac{5}{2} }

Step-by-step explanation:

2 {x}^{2}  - 9x + 10 = 0 \\  \\ 2 {x}^{2}  - 4x - 5x + 10 = 0 \\  \\ 2x(x - 2) - 5(x - 2) = 0 \\  \\ (x - 2)(2x - 5) = 0 \\  \\ x - 2 = 0 \:  \: 2x - 5 = 0 \\  \\ x =  \boxed{2} \: and \: x =  \boxed{ \frac{5}{2} } \\  \\

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#23-6: The pool concession stand made $5,800 in June and $6,300 in July. What is the percent of increase in sales? Round the ans
katrin [286]

Answer:

8.6%

Step-by-step explanation:

To find the percent change, you will need to compute the positive difference and then divide the difference by the original (the older amount).

So the positive difference will be obtain by doing larger minus smaller:

 6300

- 5800

-----------

   500

The older amount was 5800.

So 500/5800 is the answer as a un-reduced fraction.

I'm going to reduce it by dividing top and bottom by 100:

500/5800  = 5/58

5/58 is the answer as a reduced fraction.

5 divided by 58 gives=0.086206897  in the calculator .

Approximately 0.0862 is the answer as a decimal.

To convert this to a percentage, multiply it by a 100:

8.62%

Rounded to the nearest tenths is 8.6%

-------------

So 5800+5800(.0862) should be pretty close to 6300 (not exactly though since we rounded).

5800+5800(.0862)=6299.96 using the calculator.

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3 years ago
Find the value of x in the isosceles triangle shown below. WILL MARK BRAINLIEST 18 POINTS!
julsineya [31]

Answer:

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4 0
3 years ago
What is 20-14+7-9+6-2+24=?
Rashid [163]

Answer:

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5 0
3 years ago
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Evaluate z + 2+ z for x = 2, y=-3, z = -4.
Artyom0805 [142]

Answer:

-6

Step-by-step explanation:

Are you sure that z + 2+ z is correct?  x and y do not appear here.

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7 0
3 years ago
a piece of ribbon 61/4 metres long is cut into 5 EQUAL PIECES. Calculaye the length of each piece. (show working)​
kaheart [24]
ANSWER:⇒ ⁶¹/₂₀
Can also be wrote out like:⇒ 3.05, 3¹/₂₀

Formulate & Calculate:

⁶¹/₄ × ₅

Calculate the product or quotient:

⁶¹/₂₀

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2 years ago
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