3 years ago

Could someone kindly help me with this problem in the picture please?

Mathematics

1 answer:

lora16 [44]3 years ago

6 0

A......................................

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Five hats and three scarves cost $99. While three hats and five scarves cost

PtichkaEL [24]

Answer:

x=15, y=8

15 hats and 8 scarves

Step-by-step explanation:

hats=x

scarves=y

5x+3y=99

3x+5y=85

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3 years ago

After extensive measurements of the time necessary to complete the first homework assignment, a teacher determines that there is

MaRussiya [10]

Answer: -1.55

Step-by-step explanation:

Given : Mean : $\mu=100$

Standard deviation : $\sigma=20$

Sample size : $n=60$

Sample mean : $\overline{x}=96$

The test statistic for the population mean is given by :-

$z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

$\Rightarrow\ z=\dfrac{96-100}{\dfrac{20}{\sqrt{60}}}=-1.54919333848\approx-1.55$

Hence, the value of z statistic = -1.55

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3 years ago

Can someone help me please <br> I need to turn this in fast :(

Len [333]

I believe it is answer A...He pays 485 originally and then 25 to his brother ever hour so 485+75 is 560 making A the answer.

8 0

3 years ago

Which expression is equivalent to 6^4 x 6^3

Alex777 [14]

Answer:

$36^{7}$

Step-by-step explanation:

$6^{4}$ × $6^{3}$

6 x 6 = 36

4 + 3 = 7 (add exponents because its multiplication)

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3 years ago

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How to solve this inequality: 3p - 6 > 21.

bearhunter [10]

First of all you do +6 to both sides which will get you now 3p > 27 then you do divide by 3 to get the p by itself, which will give you answer of p > 9, LETTER C

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3 years ago