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yKpoI14uk [10]
3 years ago
15

Expand the expression 2/7(2s+3)

Mathematics
2 answers:
xxTIMURxx [149]3 years ago
8 0
48/7 + 6/7 if your having any other trouble let me no


xxTIMURxx [149]3 years ago
8 0
48/7 + 6/7  hopes this helps
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Priscilla bought cheese that weighs ¾ of a pound. If she divides it into portions that are each 1/8 of a pound, how many portion
lakkis [162]

Answer:

6

Step-by-step explanation:

Priscilla bought cheese that weighs ¾ of a pound. If she divides it into portions that are each 1/8 of a pound, how many portions can she make?

¾÷⅛= 6

answer 6

4 0
2 years ago
An open box is to be constructed so that the length of the base is 3 times larger than the width of the base. If the cost to con
natta225 [31]

Answer:

Step-by-step explanation:

Let assume that the volume = 88 cubic feet

Then:

L = 3w --- (1)volume = l \times w \times h \\ \\ 88 =  (3w)   \times w  \times h \\ \\ 3w^2 h= 88 \\ \\ h = \dfrac{88}{3w^2}--- (2) \\ \\

The construction cost now is:

C = 4(l \times w) + 2 ( w  \times h) + 2(l \times h) \\ \\ C = 4(3w^2) + 2(w  \times \dfrac{88}{3w^2}) + 2(3w \times \dfrac{88}{3w^2}) \\\\ C = 12w^2 + \dfrac{176}{3w} + \dfrac{176}{w}

Now, to determine the minimum cost:

\dfrac{dC}{dw}= 0  \\ \\ \implies 24 w - \dfrac{176}{3w^2}- \dfrac{176}{w^2}=0 \\ \\ 24 w ^3 = \dfrac{176}{w^2}(\dfrac{1}{3}+1) \\ \\ 24 w ^3 = \dfrac{176(4)}{3} \\ \\ w^3 = \dfrac{88}{3(3)}

w = \dfrac{88}{3(3)}^{1/3} \ feet

Now;

length = 3 ( \dfrac{88}{3(3)})^{1/3} \ feet

height = ( 88})^{1/3} (3)^{1/3} \ feet

6 0
3 years ago
veronica saving money to buy a saddle for her horse that cost $175. she plans to save $10 the first month and then increase the
aleksandr82 [10.1K]
Take how much money she needs, which is $175. Subtract $10 from that. You get $165. Now divide that by $5. $165 divided by $5 is 33. That's 33 months. BUT, we also have to include the first month (because that month is saving money too, $10). So that month (1) plus the others (33) equals 34 months.

So, the answer: 34 months.

God bless!
4 0
2 years ago
Read 2 more answers
Help meeeeeeeeeeeeeeeeeeeeeeee
nexus9112 [7]

12. Collect terms.

... = x(1/2 - 2 1/4) + (-7 +2) = (-1 3/4)x -5 . . . . matches a)

13. Undo what is done to x. Perform the operations on both sides of the equation.

... 3x -4 = -22 . . . . multiply by -2 to undo multiplication by -1/2

... 3x = -18 . . . . . . . add 4 to undo subtraction of 4

... x = -6 . . . . . . . . . divide by 3 to undo the multiplication by 3

The value of x is -6.

6 0
3 years ago
Read 2 more answers
The digit 4 in which number represents a value of 0.04?
zhuklara [117]

it's called 'hundredths' its just 'hundred' followed by 'ths' because of the decimal point and the 0 is called 'tenths' thers no oneths when on that side

hope you appreciated my answer

8 0
3 years ago
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