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Delvig [45]
4 years ago
12

PLZ HELP ME THANKS!!!!!!!!!!!!!!

Mathematics
2 answers:
strojnjashka [21]4 years ago
6 0
Answer is D
remember you can put whole numbers as fractions too
so 7 would be 7/1
you can simply multiple across for fractions:
7/1 * 1/10 
Montano1993 [528]4 years ago
6 0
D. 7x 1/10 = 7/10 that's the answer
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A club decides to sell T-Shirts for 15$ as a fund-raiser. It cost $20 plus $9 per T-Shirt to make them. How many T-Shirts need t
8090 [49]
The expression for T-shirt production is 20+9T
The expression for total price of selling the T-shirts is 15T

Profit = Total cost of selling - Total cost of buying
Profit = 15T - (20+9T)
Profit = 15T - 20 - 9T
Profit = 6T - 20 

To make profit ≥150

6T - 20 ≥ 150
6T ≥ 170
T ≥ 170/6
T ≥ 28.3

The minimum number of T-shirts needed is 29 T-shirts
7 0
3 years ago
4x + 3 over 5 = 8x - 1 over 9
Mandarinka [93]

Answer:

<h2><em>x</em><em>=</em><em>8</em></h2>

<em>Solu</em><em>tion</em><em>,</em>

<em>\frac{4x + 3}{5}  =  \frac{8x - 1}{9}  \\ or \: 9(4x + 3) = 5(8x - 1) \\ or \: 36x + 27 = 40x - 5 \\ or \: 36x - 40x =  - 5 - 27 \\ or \:  - 4x =  - 32 \\ or \: x =  \frac{ - 32}{ - 4}  \\ x = 8</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>

<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em>

5 0
4 years ago
Read 2 more answers
Archimedes drained the water in his tub. 62.562.562, point, 5 liters of water were drained each minute, and the tub was complete
erma4kov [3.2K]

Answer:

500 liters

Step-by-step explanation:

We want to find the total amount of water that was drained.

He drained 62.5 liters of water per minute and this went on for 8 minutes. The total amount of water drained is:

62.5 * 8 = 500 liters of water

7 0
3 years ago
A random sample of five Galaxy 8 smartphones is selected from the production line after final assembly, and the result of the we
zepelin [54]
<h2>Answer with explanation:</h2>

Given : A random sample of five Galaxy 8 smartphones is selected from the production line after final assembly, and the result of the weight control measurement is (in grams) are :

X= 155.1, 154.8, 155.5, 155.3, and 154.6.

here, n=5

The average weight :\overline{x}=\dfrac{\sum^{i=5}_{i=1}x_i}{n}

=\dfrac{155.1+154.8+155.5+155.3+154.6}{5}\\\\=\dfrac{775.3}{5}=155.06

∴ Average weight (\overline{x})=155.06 grams

Uncertainty = Standard deviation: \sigma=\sqrt{\dfrac{\sum^{i=5}_{i=1}(x_i-\overline{x})^2}{n}}

=\sqrt{\dfrac{(0.04)^2+(-0.26)^2+(0.44)^2+(0.24)^2+(-0.46)^2}{5}}

=\sqrt{\dfrac{0.532}{5}}=\sqrt{0.1064}=0.326190128606\approx0.33

i.e. Its uncertainty : \sigma=0.33

The fractional uncertainty = \dfrac{\sigma}{\overline{x}}

=\dfrac{0.33}{155.06}=0.00212820843544\approx0.002

7 0
4 years ago
HJ=<br>help me please thannk u :)​
Darya [45]

Answer:

10 is the answer. hj is 10

8 0
2 years ago
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