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Oksi-84 [34.3K]
3 years ago
8

I’ll make u the brainliest if right

Mathematics
2 answers:
Thepotemich [5.8K]3 years ago
5 0

Answer:

32

Step-by-step explanation:

Given that f(x) varies directly with x then the equation relating them is

f(x) = kx ← k is the constant of variation

To find k use the condition when x = 40, f(x) = 160

k = \frac{f(x)}{x} = \frac{160}{40} = 4, thus

f(x) = 4x ← equation of variation

When x = 8, then

f(x) = 4 × 8 = 32

disa [49]3 years ago
3 0

Answer:

32

Step-by-step explanation:

trust me

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Ivan is painting 3 walls in his living room. Each wall measures 9 3/4 feet tall by 14 1/4 feet wide. Ivan needs to estimate the
Alenkinab [10]

Answer:

The estimated area is 416\frac{13}{16}\ ft^{2}

Step-by-step explanation:

we know that

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step 1

Convert the dimensions to an improper fractions

9\frac{3}{4}\ ft=\frac{9*4+3}{4}=\frac{39}{4}\ ft

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step 2

Find the area of one wall

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step 3

Multiply the area of one wall by 3

(3)*\frac{2,223}{16}=\frac{6,669}{16}\ ft^{2}

step 4

Convert to mixed number

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Step-by-step explanation:

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