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3 years ago

-8+9+5z+7x uses z=3 and x=5

2 answers:

4 0

Just substitute their values into the expression:
= -8 + 9 + 5z + 7x
= -8 + 9 + 5(3) + 7(5)
= 1 + 15 + 35
= 51

In short, Your Answer would be 51

Hope this helps!

leonid [27]3 years ago

4 0

The answer is 61.
I hope this helped!

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Debora [2.8K]

The one that makes the most sense is C

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2 years ago

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Given that 2x – 9y = 11

Stels [109]

Answer:

y = 1/3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

Identify

2x - 9y = 11

x = 7

Step 2: Evaluate

Substitute in x: 2(7) - 9y = 11
Multiply: 14 - 9y = 11
[Subtraction Property of Equality] Subtract 14 on both sides: -9y = -3
[Division Property of Equality] Divide -9 on both sides: y = 1/3

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2 years ago

If f(x) = -x + 8 and g(x) = x^4, what is (gºf)(2)?

kotykmax [81]

Answer:

$\large\boxed{(g\circ f)(2)=1296}$

Step-by-step explanation:

$(g\circ f)(x)=g\bigg(f(x)\bigg)\\\\f(x)=-x+8,\ g(x)=x^4\\\\(g\circ f)(x)=\g\bigg(f(x)\bigg)=(-x+8)^4\\\\(g\circ f)(2)\to\text{put x = 2 to the equation}\ (g\circ f)(x):\\\\(g\circ f)(2)=(-2+8)^4=(6)^4=1296$

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2 years ago

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(Q#7)I know the area of a rhombus is base times height( because it is a parallelogram), but I don't know which one is the height

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The height is 14 and the base is 25

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2 years ago

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Ostrovityanka [42]

Answer:

1.5 times
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third bottle

Step-by-step explanation:

Insufficient dimensions are given to compute an exact volume of each geometry, so we have to assume that the volume is proportional to the product of base area and height. Then the relative volumes will be ...

bottle X: (6 in)(2 in)(1 in) = 12 in^3

bottle Y: (4 in)(3 in)(1.5 in) = 18 in^3

3rd bottle: (3 in)(6 in^2) = 18 in^3

That is, the relative volumes are ...

X : Y : 3rd = 12 : 18 : 18 = 1 : 1.5 : 1.5

The corresponding relative prices are ...

X : Y : 3rd = 9.96 : 14.40 : 13:20 = 1 : 1.446 : 1.325

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B. Bottle Y is a better buy than Bottle X. (The price relative to X is less than the volume relative to X.)

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Note that the relative volume and price ratios are found by dividing all the numbers in the ratio sequence by the first number:

12 : 18 : 18 = (12/12) : (18/12) : (18/12)

9.96 : 14.40 : 13.20 = (9.96/9.96) : (14.40/9.96) : (13.20/9.96)

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2 years ago