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likoan [24]
3 years ago
8

Helpanswer question 2

Mathematics
1 answer:
Alona [7]3 years ago
5 0

Answer:

(2,3)

Step-by-step explanation:

-x-(x+1)=-5

-2x-1=-5

-2x=-4

x=2

y=3

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Jared made 12 3/4 cups of snack mix for a party.His guests eat 2/3 of the mix.How manysnack mix did his guest eat?
Fantom [35]

Answer:

<h3>The number of snacks did Jared's guest eat is 12\frac{1}{12}</h3>

Step-by-step explanation:

Given that Jared made 12\frac{3}{4} cups of snack mix for a party.

Let x be the cups of snacks mix made by Jared.

Therefore  x=12\frac{3}{4}

His guests eat \frac{2}{3} of the mix.

Let y be the guest eated snacks mix

Therefore y=\frac{2}{3}

<h3>To find how many snack mix did his guest eat :</h3>

Let z be the number of snacks did Jared's guest eat

Therefore z=x-y

z=12\frac{3}{4}-\frac{2}{3}

=\frac{51}{4}-\frac{2}{3}

=\frac{51(3)-2(4)}{4\times 3}

=\frac{153-8}{12}

=\frac{145}{12}

=12\frac{1}{12}

Therefore z=12\frac{1}{12}

<h3>Therefore the number of snacks did Jared's guest eat is 12\frac{1}{12}</h3>
5 0
4 years ago
Hi can someone please help me? If sin2A=cos 3A find the value of A. Can you please explain in full detail how you arrived at you
cupoosta [38]
<span>Sin (x) = Cos (90 - x)</span>
<span>sin(2A) = cos (90 - 2A)
=cos (3A)
90 - 2A = 3A
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A=18</span>
6 0
3 years ago
Segments AB and CD bisect each other at point O. Prove that ∆ACD is congruent to ∆BDC.
Lerok [7]

Answer:


Step-by-step explanation:

TO prove this we have to prove one of following.

SSS ( all three sides are equal )

SAS ( two sides and their middle angle is equal )

ASA ( two angles and their middle side are equal )

I am proving both triangles equal by ASA method.

The complete proof and explanation is given in attachment below.


6 0
3 years ago
Help in Circumference of a circle A small pizza has a diameter of 21 cm.
Novay_Z [31]

The circumference of any circle is (pi) x (the diameter of the circle).

The problem gives you both numbers, so all you have to do is multiply them.

Circumference = (pi) x (diameter) = (3.14) x (21cm) = <em>65.94 cm .</em>


3 0
3 years ago
A blender was originally sold for $90 and has been marked
ale4655 [162]

Answer:

88%

Step-by-step explanation:

From the question given above, the following data were obtained:

Original amount = $ 90

Discounted amount = $ 79.20

Percentage of discount =?

Let the percentage of discount be y %

Thus, we can obtain the value of y as follow:

y /100 × 90 = 79.20

90y /100 = 79.20

Cross multiply

90y = 100 × 79.20

90y = 7920

Divide both side by 90

y = 7920/90

y = 88

Thus, the percentage discount of the blender is 88%

5 0
3 years ago
Read 2 more answers
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