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timama
1 month ago
3

IF HJ = 7x-27, find the value of x​

Mathematics
1 answer:
lawyer [12.2K]1 month ago
4 0

Answer:

x= (1/7)hj + (27/7)

Step-by-step explanation:

1) Rearrange the equation:

7x-27=hj

2) Add 27 on both sides

7x = hj +27

3) Divide everything by 7

x = 1/7hj + (27/7)

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Delaney would like to make a 10 lb nut mixture that is 60% peanuts and and 40% almonds. She has several pounds of peanuts and se
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Response:

If there are "p" pounds of peanuts and "m" pounds of a mixture containing '20% peanuts and 80% almonds', then we can formulate the following equations:

p + m = 10 -----------(1) and

4m/5 = 4 ------------(2)

The solution yields 5 lb peanuts and 5 lb mixture.

Detailed explanation:

In the mixture that Delaney desires to create, there will be

\frac {10 \times 60}{100} lb

= 6 lb of peanuts

Thus, there will be (10 - 6) lb

= 4 lb of almonds

If Delaney has "p" pounds of peanuts and "m" pounds of the '20% peanuts and 80% almonds' mixture, then based on the problem statement,

p + m = 10 -----------(1) and

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From equation (2), we derive

m = 5 --------------(3)

From (1) and (3), we find that

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7 0
3 days ago
A section of a tessellated plane is shown. Which type of symmetry does the tessellated plane have?
lawyer [12283]

Response:

(A)

A symmetrical outcome occurs when both figures are identical.

The half section of the illustration is tilted downward; therefore, to achieve symmetry, we must shift the figure upwards.

Then, we reflect upon the inverted image.

Thus, we achieve reflectional and translational symmetry.

7 0
14 days ago
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A ship anchored in a port has a ladder which hangs over the side. The length of the ladder is 200cm, the distance between each r
Leona [12306]

Response:

The answer to the inquiry is 8 hours.

Step-by-step breakdown:

Information

Ladder length = 200 cm

Distance between rungs = 20 cm

Tide rise rate = 10 cm/h

Fifth rung =?

Procedure

1.- Determine the total height the tide must reach

Height = 20 cm x 4

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Time = distance / rate

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29 days ago
A box with rectangular sides has width twice the length of the base. The volume is 24 cubic inches and the total surface area of
lawyer [12283]
The cubic equation formed is L^3 - 52L +144 = 0. Dimensions: Length = 4 inches, Width = 2 inches, Height = 3 inches. To determine this, let L be the length, W the width, and H the height. The box volume is 24 cubic inches, and its total surface area is 52 sq. inches. Setting W = L/2 leads to Volume = L * W * H, thus substituting W gives us the equation 0.5L^2 * H = 24 resulting in H = 48/L^2. The surface area equation simplifies to (L*W) + (L+H) + (W+H) = 26. Introducing W = 0.5L yields 0.5L^2 + 1.5LH = 26. Substituting H into this gives 0.5L^2 + 72/L = 26. Multiplying throughout by L to eliminate denominators yields 0.5L^3 - 26L + 72 = 0. After multiplying through by 2: L^3 - 52L +144 = 0. Testing L=4 confirms a factor, thus Length (L) = 4 inches, and subsequently, W and H calculate to 2 inches and 3 inches respectively.
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A rectangle is transformed according to the rule R0, 90º. The image of the rectangle has vertices located at R'(–4, 4), S'(–4, 1
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The rule to convert a point in this case is:

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This rule has already been implemented to create the image, so we need to reverse the outcome using this formula, hence:

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2. Counterc
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Applying the same concept as before but with new rules for the scenario:

(x,y) \rightarrow (-y,x)

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