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Archy [21]
3 years ago
6

Solve the proportion for the variable given.

Mathematics
1 answer:
kykrilka [37]3 years ago
7 0

Answer:

D) 27/2

Step-by-step explanation:

we have

\frac{4}{6}=\frac{9}{x}

Multiply in cross

4(x)=9(6)\\4x=54

Divide by 4 both sides

x=\frac{54}{4}

Simplify

Divide by 2 both numerator and denominator

x=\frac{27}{2}

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During one week, Josh ran 36 miles, Corey ran 26 miles, Rhona ran 30 miles, and Lyndsay ran 28 miles. What is the mean distance
wolverine [178]
B.) 30 miles

You needed to add all the numbers together then divide by the amount of numbers there which is 4. (ex: 36 + 26 + 30 + 28 = 120  120<span>÷4= 30)

hope that helps!</span>
6 0
3 years ago
Let C(x) be the cost to produce x batches of​ widgets, and let R(x) be the revenue in thousands of dollars. R(x) = − x² + 6x​, C
Musya8 [376]

Answer:

Step-by-step explanation:

Let C(x) be the cost to produce x batches of​ widgets, and let R(x) be the revenue in thousands of dollars.

R(x) = -x^2 + 6x,\\ C(x) = x + 4.

Profit function = Revenue  - cost

So we get profit function by subtracting C(x) from R(x) using algebraic method of subtraction.

Profit function of x

= Pr(x) = R(x) -C(x)\\= -x^2+6x-x-4\\=-x^2+5x-4

7 0
4 years ago
Please can someone help!
ycow [4]

Answer:

x=117

Step-by-step explanation:

since there is 2 angles that they already give you the measurements with. you try to solve the 101 angle and subtract 180-101= 79. this is the angle beside 101. since a triangle is equal to 180 degrees; you add the 38 and 79 which equals 117. you subtract 180-117=63. That is the other angle on the inside of the triangle.

8 0
4 years ago
Someone please help me quick I've been stuck on this problem for 2 hours and my assignment is due at 10:30pm.
astraxan [27]

Answer:

419.5 ft of BX cable

step-by-step explanation:

12x8.5ft= 102 ft

7x18.5 ft= 129.5ft

24x 1.75ft= 42ft

12x 6.5ft=78 ft

2x 34.25= 68.5ft

Add all the answers and you get 419.5 ft

8 0
3 years ago
Evaluate.<br><br> –228 + 384 + (–189)
tiny-mole [99]
First collect the like terms together= -228+-189+384
then work out=-228+-189+384
                        =-417+384
                          =-33
the answer is -33
hope i helped
5 0
3 years ago
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