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r-ruslan [8.4K]
2 years ago
13

Glve the values of a, b, and c needed to write the equation's standard form. 5 + x)(5 - x) = 7

Mathematics
1 answer:
beks73 [17]2 years ago
3 0
A=1 B=0 C=-18. This will be your correct answer.
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Find the value of x.<br><br>(2^3x+1)+52=180
Rudik [331]

Answer:

x= 127/8

Step-by-step explanation:

3 0
3 years ago
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Miss has a sheet of wrapping paper 85cm in length and 60 cm in width. She cuts the paper into rectangular pieces of length 20 cm
dalvyx [7]

Answer:

Part a - 25 pieces

Part b - 4 sheets

Step-by-step explanation:

<u>Part a</u>

Think of this in terms of how many "units" can the total paper be cut into. Easiest way to keep track of units is by their area. In other words, take the total area and see how many unit areas fit into it:

Number of units = total area / unit area

N = (85 x 60) / (20 x 10)

N = 5100 / 200

N = 25.5

Therefore the greatest number of pieces the paper can be cut into is 25 units (the 0.5 doesn't count since it's not a full pieces).

<u>Part b</u>

Again, back to units. This time the "total" is 100, and our unit size is 25.5. So:

Number of units = total gifts / gifts per unit

N = 100 / 25.5

N = 3.9

Therefore 4 sheets of wrapping paper will be needed (you need to round the 3.9 up because wrapping paper sheets only come in whole numbers for the purposes of this question).

7 0
2 years ago
8x –3(5x–2)=7–10x <br><br> Solve this equation with a clear value for x
Serga [27]

Answer:

x = 1/3

Step-by-step explanation:

8x –3(5x–2)=7–10x

Distribute

8x - 15x +6 = 7-10x

Combine like terms

-7x + 6 = 7- 10x

Add 10x to each side

-7x +10x+ 6 = 7- 10x+10x

3x+6 = 7

Subtract 6 from each side

3x+6-6 =7-6

3x = 1

Divide each side by 3

3x/3 = 1/3

x = 1/3

8 0
3 years ago
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Please help and please no links..thanks ¯\_(ツ)_/¯
IrinaVladis [17]

Answer:

\frac{c}{4} +5 = 7

Step-by-step explanation:

The wording, "the quotient of a number and 4," can be displayed as c/4. C would be our variable for the number because the question asks specifically for it. 5 more would demonstrate that we're adding 5 more to our equation. Which would result in c/4 + 5. However, since it equals 7, just add that portion to create the following equation:

\frac{c}{4} +5 = 7

3 0
2 years ago
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A piece of lumber is 17 feet long, You cut the lumber into logs that are 18 inches long, how many 18 inch logs do you cut from t
Marta_Voda [28]
Multiplication and distributive property are your friends for this problen
4 0
3 years ago
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