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densk [106]
3 years ago
12

~Help me with this please! I will mark as BRANLIEST and if you answer correctly there would be a 55 point question for you!!!

Mathematics
1 answer:
4vir4ik [10]3 years ago
5 0

Answer:

Simply here we use system of 2 equations.

Step-by-step explanation:

Let x be the cost of one small shirt and let y be that of one large shirt.

(4x +14y =210) (-3)

12x +11y =110

-12x - 42y= -630 note:cross 12x and - 12x

12x +11y =110

__________

-42y +11y = - 630 +110

-31y = -520

Y=520/31

Replace y in second equation:

12x +11y =110

12x +11(520/31) =110

12x +5720 =110

12x =110 - 5720/31

X= - 385/62

So one small shirt costs - 385/62 $

And a large one costs 520/31 $

Though I think there's something wrong in this problem since i verified my answer using calculator the same prices are obtained and as u see the cost of a small shirt is negative which is unbelievable.. So plz make sure from anyone else. I tried my best to help.

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joe has a cylindrical glass jar that he wants to fill completly with apple juice. This jar has a diameter of 4 inches and a heig
KonstantinChe [14]

Answer:

  V = πr²h

Step-by-step explanation:

The formula for the volume of a cylinder is ...

  V = πr²h

where V is the volume, r is the radius, and h is the height of the cylinder.

_____

<em>Comment on the formula</em>

This is a specific version of the formula for any sort of "prism" with parallel bases and a uniform cross section (parallel to the bases). The volume of such a figure is computed as ...

  V = Bh

where B is the area of the base and h is the perpendicular distance between the parallel bases. Here, the base is a circle, so has area formula ...

  B = πr²

Filling this into the volume formula gives ...

  V = πr²h . . . . . as above

8 0
4 years ago
Corey buys 4.16 pounds of apples for $5.20 how much does one pound cost
blondinia [14]
<span>$5.20 / 4.16 = $1.25 per pound

answer

it cost $1.25 one pound</span>
3 0
3 years ago
HELP! BRAINLIST COULD GET 50+ POINTS!!!
mestny [16]

Answer:

B

Step-by-step explanation:

well by rotating  ΔABC  by 60*(degrees) about A , such that in ΔA'B'C,B =C'

you can see that ΔAPP' is equilateral side length 1, meaning that <APP' =60*

you can also see that ΔCPP' is a 30- 60- 90 right angle also meaning that <CPP' =60* now,by adding the two together you see that < ACP =120* now you can also use the law of cosins and soooo

                          s2=(AP)2+(CP)2-2(AP)(CP)cos120*

                                     s2=1+4-2(1)(2)cos120*

                                             s2=5-4 (-1over2)

                                                      s=\sqrt{x} 5+2\\

                                                    7

so b is your answer hope this helped

6 0
3 years ago
Estimate a 15% tip on a lunch bill of $78.42 by first rounding the bill amount to the nearest ten dollars.
Ludmilka [50]

Answer:

The tip is $12

Step-by-step explanation:

78 rounds up to 80.

15x80=1200.

1200/100=12.

4 0
3 years ago
Solve using substitution or elimination. Remember, you must check your work.
Ostrovityanka [42]

Answer:

The answer to your question is: (1/2, -1/3)

Step-by-step explanation:

Elimination

                           10x - 15y = 10    (I)

                             4x + 6y = 0     (II)

Multiply (I) by 2 and (II) by -5

                          20x - 30y = 20

                         -20x - 30y = 0

                                                                Add both equations

                           0   - 60y = 20

                                       y = -20/60

                                      y = - 1/3

Substitute y in (II)

                          4x + 6(-1/3) = 0

                          4x - 2 = 0

                          4x =  2

                            x = 2/4

                           x = 1/2                      

                4(1/2) + 6(-1/3) = 0

                     4/2 - 6/3 = 0

                      2 - 2 = 0

                            0 = 0          

7 0
3 years ago
Read 2 more answers
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