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Delvig [45]
3 years ago
6

✨ILL GIVE Brainalist I SWEAR. BTW THERE coMparing uniT PROPORTIONS PLS

Mathematics
2 answers:
scoundrel [369]3 years ago
8 0

Answer:

  • Three t-shirts for $28.95

Step-by-step explanation:

<u>Three t-shirts for $28.95</u>

  • Cost of one: $28.95/3 = $9.65

<u>Four t-shirts priced at  $39</u>

  • Cost of one: $39/4 = $9.75

<u>Five t-shirts for $49.95</u>

  • Cost of one: $49.95/5 = $9.99

The cheapest option is the first one

Shkiper50 [21]3 years ago
4 0

Answer:

do the dead easy calculation read explanation I have no calculator atm

Step-by-step explanation:

so what you want to do is take the amount of cost and divide by number of shirts to find price per shirt and see which one is cheapest

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The scale drawing of a concrete pad has a length of 9.1 cm, a depth of 2.2 cm and a width of 3.8 cm.
valentina_108 [34]

Answer ; 242 cm because 418/3.8 =110 and if you multiply 110 with 2.2 you’ll have 242 !!

3 0
3 years ago
Please help with this inequality.
iren [92.7K]
44\geq -3x + 2 > 14.
-2                                -2      -2

42\geq -3x > 12
-------------------------------------
-3                          -3       -3 (dividing with inequalities by a negative flips the inequality symbol)

-14\leq x < -4
3 0
3 years ago
What multiples to 42 and adds to -2
solniwko [45]

Answer:

Step-by-step explanation:

xy = 42

x+y = - 2                   Substitute into the top equation

y = -2 - x                   Put in for y

x(-2 - x) = 42             Remove the brackets

-2x - x^2 = 42           Subtract 42 from both sides.

-2x - x^2 - 42 = 0      Put in the more normal order.

-x^2 - 2x - 42 = 0      Multiply by -1

x^2 + 2x + 42 = 0

This cannot be factored. It gives complex roots as it is written. I will give you the answer but I kind of doubt the question is correct.

x1 = - 1 + 6.40i

x2 = -1 - 6.40i

Leave a comment if you have a correction.

4 0
4 years ago
suppose a population consists of 5000 being surveyed could result in sample statistic but not parameter
Talja [164]
Huh? What is the question here???
4 0
3 years ago
A random sample of 4000 college students yielded 2250 who are in favor of banning Hawaiian shirts. Estimate the true proportion
Andreas93 [3]

Answer: (0.5496, 0.5754)

Step-by-step explanation:

The confidence interval for population proportion (p) is given by :-

\hat{p}\pm z*\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}  , where \hat{p}= Sample proportion , n= sample size , z*= Critical z-value.

Let p be the  proportion of all college students who are in favor of banning Hawaiian shirt.

Given, A random sample of 4000 college students yielded 2250 who are in favor of banning Hawaiian shirts.

i.e. n=4000

\hat{p}=\dfrac{2250}{4000}=0.5625

z-value for 90% confidence level is 1.645

Now , 90% confidence interval for p would be :

0.5625\pm (1.645)(\sqrt{\dfrac{0.5625(1-0.5625)}{4000}})

=0.5625\pm (1.645)(\sqrt{0.0000615234375})\\\\=0.5625\pm (1.645)(0.00784368774876)\\\\\approx0.5625\pm0.0129\\\\=(0.5625-0.0129, \ 0.5625+0.0129)\\\\=(0.5496,\ 0.5754)

Hence, the required 90% interval = (0.5496, 0.5754)

6 0
4 years ago
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