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4 years ago

Solve for x: 4(x-5) 8 =9y x = [?]y+[ ]

Mathematics

1 answer:

Katarina [22]4 years ago

3 0

Answer:

Step-by-step explanation:

Ok so this is it, then:

$\frac{4(x-5)}{8}=9y$ First distribute the 4 into the parenthesis to get rid of them. This gives you:

$\frac{4x-20}{8}=9y$ Now undo the division of 8 by multiplying both sides by 8 to get:

4x - 20 = 72y Add 20 to both sides to get:

4x = 92y so

x = 23y

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Two rectangles have the same area of 24cm².The second rectangle is 4cm shorter and 1cm wider than the first.What is the length a

lukranit [14]

Answer:

First rectangle: 12 cm by 2 cm

Second rectangle: 8 cm by 3 cm

Step-by-step explanation:

You can examine factor pairs of 24 to see which pairs meet the requirements:

24 = 1×24 = 2×12 = 3×8 = 4×6

Factor pairs (2, 12) and (3, 8) have one factor that differs by 1 and another factor that differs by 4. We can use these numbers to describe the rectangles:

First rectangle: 12 cm by 2 cm

Second rectangle: 8 cm by 3 cm

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3 years ago

What is the solution to the equation below? 3x/X-6=3

Arturiano [62]

Answer:

no solution

Step-by-step explanation:

first, reduce the fraction by x. the equation is now 3-6=3. the statement is false, so there is no solution.

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3 years ago

The weight Wkg of a metal bar varies jointly

maria [59]

Answer:

d = $\sqrt{\frac{216W}{35L} }$

Step-by-step explanation:

Given that W varies jointly as L and d² then the equation relating them is

W = kLd² ← k is the constant of variation

To find k use the condition W = 140 when d = 4 and L = 54, thus

140 = k × 54 × 4² = 864k ( divide both sides by 864 )

$\frac{140}{864}$ = k , that is

k = $\frac{35}{216}$

W = $\frac{35}{216}$ Ld² ← equation of variation

Multiply both sides by 216

216W = 35Ld² ( divide both sides by 35L )

$\frac{216W}{35L}$ = d² ( take the square root of both sides )

d = $\sqrt{\frac{216W}{35L} }$

6 0

3 years ago

a bus is traveling at a constant speed if the bus travels 15 1/2 miles in 1/3 of an hour how many miles will the bus travel in o

Svetradugi [14.3K]

Answer:93/2 or 46 1/2

Step-by-step explanation:

15 1/2 ✖️3

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3 years ago

What is the square root of <br> X of the power of 2 -1 =80?

zepelin [54]

Answer:

x=6561

Step-by-step explanation:

We can solve this equation for x to get

$\sqrt{x} -1=80\\\\\sqrt{x} =81\\x=(81)^2\\\\x=6561$

5 0

3 years ago