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pshichka [43]
3 years ago
8

Help me please?? solve using proportion

Mathematics
1 answer:
gulaghasi [49]3 years ago
6 0

9514 1404 393

Answer:

  2 1/2 cups

Step-by-step explanation:

A proportion says the ratio of one thing to another is the same for different amounts. Here, we want cups, so we can use the proportion ...

  cups/people = 2/12 = x/15 . . . . . where x is the number we want to find

Multiplying by 15 gives ...

  x = 15(2/12) = 5/2 = 2 1/2

You will need 2 1/2 cups of zucchini to feed 15 people with the same recipe.

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A train travels 25 miles in 20 minutes. What is the train speed in miles per hour?
kenny6666 [7]
60 min = 1 hour

1st we need to know how many times 20 goes in 60 so we will divide.

60 ÷ 20 = 3

Now we will multiply to find the trains speed in miles per hour. 

3 × 25 = 75

SO, the train travels 75 miles per hour. 

Hope I helped ya!! 
4 0
3 years ago
25° 35° to 205° circle ​
Lisa [10]

Answer:

x = 60

Step-by-step explanation:

the chord- chord angle x is half the sum of the measures of the arcs intercepted by the angle and its vertical angle.

The sum of the arcs in a circle = 360° , then

intercepted arc = 360° - (35 + 25 + 205)° = 360° - 265° = 95°

then

x = \frac{1}{2} (95 + 25 ) = \frac{1}{2} × 120 = 60

3 0
2 years ago
What equation represents the line that passes through the points (-3 7 and (3 3?
dexar [7]


<span>Hello : let  A(-3,7)    B(3,3)
the slope is :   (YB - YA)/(XB -XA)
(3-7)/(3+3)  = -2/3
an equation is : y=ax+b     a is a slope</span>

y = (-2/3)x +b

 

the line through point B (3,3) :  3 = (-2/3)(3)+b<span>
<span>b =5 
the equation is : y =(-2/3)x+5</span></span>

3 0
3 years ago
The perimeter of the triangle is 15.7 inches, so the equation to solve is 2a + b = 15.7.
zheka24 [161]

Answer:

a=7.85-1/2^b

Step-by-step explanation:

2a=15.7-b Move variable to the right side and change its sign

2a=15.7-b Divide both sides of the equation by 2

a=7.85-1/2^b The final solution for a is


4 0
3 years ago
How do you solve for 4y+20=5x
Dima020 [189]

You cant because there are 2 different variables

hope this helps, have a great day

3 0
3 years ago
Read 2 more answers
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