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iogann1982 [59]
3 years ago
8

Solve each problem using proportions. Show work.

Mathematics
1 answer:
irina [24]3 years ago
8 0
You put 15 over 65 is equal to 50 over x, then you multiply diagonally so 15x = 3250 then you divide both sides by 15 to get 216.67 which means 50 pencils equals 2.17 dollars
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A truck that can carry no more than 6600 lbs is being used to transport refrigerators and upright pianos. each refrigerator weig
ZanzabumX [31]

Answer:

(a). 300r + 425p ≤ 6,600

(b). No, it’s not considered overweight

Step-by-step explanation:

In this question, we are to write an equation that shows the number of refrigerators and pianos the truck could carry.

Let the number of refrigerators be r and the number of pianos be p

By using their individual weights, the equation is as follows;

300r + 425p ≤ 6,600

To the second question, we want to consider if 10 refrigerators and 8 pianos are overload.

To get this, we simply multiply the number of each by their individual weights;

That would be;

300(10) + 425(8) = 3000 + 3,400 = 6,400 lbs

This is not considered overweight as it is less than 6,600 lbs

6 0
4 years ago
Diane simplified the expression below 8(1+2i)-(7-3i)=1+5i
jekas [21]

Answer:

i=0

Step-by-step explanation:

8(1+2i)-(7-3i)=1+5i

8+16i-7+3i=1+5i

1+19i=1+5i

1+19i-5i=1

1+14i=1

14i=1-1

14i=0

i=0/14

i=0

6 0
4 years ago
Hello everyone!
larisa86 [58]

Answer:

y=8x-11

Step-by-step explanation:

Use Point-Slope Form

Which is y-y1=m(x-x1)

If we fit the coordinates and slope in the equation, it is y-5=8(x-2)

=y-5=8x-16

=y=8x-16+5

=y=8x-11

And so the answer of the problem is y=8x-11

5 0
3 years ago
fruits are packed in boxes each weighing 2 kg 500 g .how many such boxes can be n loaded kn a van.which can not carry beyond 250
olya-2409 [2.1K]

Answer:

18

Step-by-step explanation:

Just divided

Please Brainliest me

6 0
3 years ago
The function f(x) = 4x – 0.1x2 is used to model the curve of a bridge over a small river, where x is the distance from one side
Mice21 [21]

Answer:

x ∈ R ( 0 , + ∞ )

Step-by-step explanation:

In the function:

F(x) = 4*x -0,1*x²

The domain of  F(x) is all the set of real numbers

R ∈ ( -∞ , +∞ )

values for F(x), can be found from negative and positive values of x

for instance for:

x = -2          F(x) = 4*(-2) - 0,1 * (-2)²        F(x) = - 8,4

x = 2           F(x) = 4*(2) - 0,1 * (2)²           F(x) = 7,6

But distance x could not be negative ( there is not negative distance in the real world), therefore the reasonable range restricts values of x only to positive values.

Then x can be any number x ≥ 0  ( distance could be 0 )

4 0
3 years ago
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