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ioda
3 years ago
5

Which of these functions has a y-intercept of (0, 7)? Select all that apply

Mathematics
1 answer:
Anton [14]3 years ago
6 0

Answer:

(0,7)

Step-by-step explanation:

there is no problem work shown.

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Is 5000 cm greater or less than 5 m
Alenkasestr [34]

Answer: 5000 cm is greater than 5 m

Step-by-step explanation:

When you convert 5000 cm to m 5000 cm is equal to 50 m so 5000 cm is greater than 5 m

6 0
3 years ago
A chemist has one solution that has 50% acid. She has another solution that is 25% acid. How many liters of the 50% acid solutio
Tatiana [17]

Answer:

Step-by-step explanation:

Let's begin by assigning letters to represent our two unknowns:

   x (liters of 25% solution)

   y (liters of 50% solution)

 

Our system of equations will consist of two equations:

   Equation #1 (total volume of solution)

   Equation #2 (total concentration of acid)

 

Our total volume of solution is 10 liters, which can be expressed as the sum of our unknowns:

   Equation #1:  x + y = 10

 

Our total concentration of acid can be expressed as the sum of the individual acid concentrations to make up the concentration of the final solution:

   Equation #2:  (0.25)(x) + (0.50)(y) =

                            (0.40)(10)

 

We can use Equation #1 to express one unknown in terms of the other and then plug that expression into Equation #2 to solve for one of the unknowns:

   x + y = 10

         y = 10 - x

 

Now we'll plug our expression for y in terms of x into Equation #2 and solve for x:

   0.25(x) + 0.50(10 - x) = 0.40(10)

   0.25x + 5 - 0.50x = 4

   -0.25x = 4 - 5

   -0.25x = -1

          x = (-1)/(-0.25)

          x = 4 (liters of 25% solution)

 

Now we'll plug our value for x into Equation #1 and solve for y:

   4 + y = 10

         y  = 10 - 4

         y = 6 (liters of 50% solution)

 

Finally, we will verify the correctness of our answers by plugging these values into Equation #2 to see if the sum of the component acid concentrations equals the final solution concentration:

   0.25(4) + (0.50)(6) = 0.40(10)

   1 + 3 = 4

         4 = 4 (our answers are correct)

8 0
2 years ago
A local little league has a total of 65 players, of whom 20% are right-handed. How many
Semmy [17]

Answer:

13

Step-by-step explanation:

convert percent to decimal: .20

.20 x 65

13

7 0
3 years ago
Inequality #1<br> o ²5 n-3 (n-6)
Afina-wow [57]

Let's simplify step-by-step.

o25n−3(n−6)

Distribute:

=o25n+(−3)(n)+(−3)(−6)

=no25+−3n+18

Answer:

=no25−3n+18

(Pls mark as brainliest) (:

7 0
3 years ago
what os the measure of the angle formed by the minute hand and the hour hand of a clock when the clock ahows 4:00
N76 [4]
Dont know what to say but if u really need an answer i would say 1\4
4 0
3 years ago
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