All categories

3 years ago

Two sisters each bought 1 litter box, 10 cat toys an x bags of cat food. Write and simplify

Mathematics

1 answer:

ololo11 [35]3 years ago

8 0

Answer:

2a + 20b +2xc = 2(a+10b+xc)

Step-by-step explanation:

Let a = one litter box, b = one cat toy and c = a bag of cat food

The 1 litter box = a, 10 cat toys = 10b and x bags of cat food = xc

For one sister, purchase = a + 10b + xc

And for two sisters,

total purchase = 2 x ( a + 10b + xc ) = 2(a+10b+xc)

= 2a + 20b + 2xc

You might be interested in

How does a male get circumcised?

bezimeni [28]

Answer: the excess skin is surgically removed

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A spaceship on a journey between planets would have to recycle as much air and water as possible. Suppose the crew on such a spa

matrenka [14]

you are high the answer is
.532%

5 0

3 years ago

Pls help I need dis for a good grade

love history [14]

111) 5:4

112) 3.6

113) -4

114) 0.3 units down, 0.4 units to the left

5 0

3 years ago

Read 2 more answers

A data set includes 108 body temperatures of healthy adult humans having a mean of 98.3degrees°F and a standard deviation of 0.6

mylen [45]

<h2>Answer with explanation:</h2>

The confidence interval for population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : n=106

Sample mean : $\overline{x}=98.3^{\circ}\ F$

Standard deviation : $\sigma= 0.69^{\circ}F$

Significance level : $\alpha: 1-0.99=0.01$

Critical value : $z_{\alpha/2}=2.576$

Then , 99% confidence interval estimate of the mean body temperature of all healthy humans will be :-

$98.3\pm (2.576)\dfrac{0.69}{\sqrt{106}}\\\\\approx98.3\pm0.173=(98.3-0.173,\ 98.3+0.173)=(98.127,\ 98.473)$

Since 98.6 is higher than the upper limit of the confidence interval (98.473), then this suggest that the mean body temperature could be lower then 98.6 degrees.

The best estimate of population mean is always the sample mean. $\mu=\overline{x}=98.3^{\circ}\ F$

7 0

3 years ago

Whats -5/6 divided by 3/10

enyata [817]

Answer:

-25/9

Step-by-step explanation:

-5/6 : 3/10

-->(cross multibly)

=-5 *10 : 6*3

=-50/ 18

=-25/9

6 0

3 years ago