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Aloiza [94]
3 years ago
9

Freddy reads an equal number of pages of a book every week. The graph below shows the number of pages of the book left to read,

y, after x weeks:
A graph titled Freddys Book Reading shows Number of Weeks on the x-axis and Number of Pages Left on the y-axis. The scale on the x-axis shows numbers from 0 to 6 at increments of 1, and the scale on the y-axis shows numbers from 0 to 280 at increments of 40. A straight line joins the ordered pairs 0, 200 and 1, 160 and 2, 120 and 3, 80 and 4, 40 and 5, 0.
Which equation best models the relationship between x and y? (1 point)

Select one:
a. y = −5x + 40
b. y = −40x + 280
c. y = −40x + 200
d. y = −5x + 200
Mathematics
2 answers:
emmasim [6.3K]3 years ago
8 0

Answer:

the answer is C!!!

Klio2033 [76]3 years ago
4 0
The answer is A i've done this before
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One positive integer is 1 less than twice another. The sum of their squares is 106. Find the integers.
neonofarm [45]
They give us 2 pieces to the puzzle.  Both are positive numbers...x and y.
1.) 1 number is 1 less than twice another number. (x = 2y -1)...and
2.) the sum of their squares is 106.  (x^2 + y^2 = 106).

 substitute the value for x into the second equation.

(2y-1)^2 + y^2 = 106
(2y-1) (2y-1) + y^2 = 106  (use distributive property)
4y^2 - 2y - 2y + 1 + y^2 = 106  (subtract 106 from both sides)
4y^2 - 2y - 2y + 1 + y^2 - 106 = 106 - 106 (combine like terms)
5y^2 - 4y - 105 = 0  (factor)
(y-5) (5y-21) = 0  (set to 0)
y - 5 = 0
y = 5 

substitute the 5 into the equation for y   (x = 2(5) - 1)
           x = 9   if we square 9, we get 81.
subtracted from 106 we have 25...the square root of 25 is 5.

our answers are 5 and 9.
8 0
3 years ago
Chad is making an orange smoothie. The recipe calls for three part frozen yogurt to five part orange juice. How many ounces of f
dedylja [7]

Answer: it will be 6 ounces of frozen yogurt and 10 ounces of orange juice.

Step-by-step explanation:

3 parts frozen yogurt

5 parts orange juice For a total of 8 parts divided by 16 ounces = 2 Multiply 3 fy x 2= 6 ounces And multiply 5 oj x 2= 10 ounces

4 0
2 years ago
Mai has picked picked 1 cup of strawberries for a cake, which is enough for 3/4 of the cake. How many cups does she need for the
Naily [24]
She will need 1/3 cup because she has already covered 3/4
8 0
3 years ago
Read 2 more answers
A field is a rectangle with a perimeter of 1240 feet. The length is 400 feet more than the width. Find the width and length of t
Wewaii [24]

Answer:  The length is 510 and the width is 110.

Step-by-step explanation:

To find the area of a rectangle, you will have to add the 2 times the length plus 2 times the width because  a rectangle have 4 sides. Two widths and two  lengths.

You can now use the formula  P= 2l + 2w  

were P is the perimeter , l is the length, and w is the width.

the length is 400 more than the width, so we can represent that by the equation,  l = w + 400  

And now we know that the width is w.

So now we will input the perimeter, length, and into the formula to solve for w.

1240 = 2(w + 400) + 2w

1240 = 2w + 800 + 2w

1240 = 4w + 800

-800            -800

   440 = 4w

    w = 110

L= 110 + 400

L = 510  

Check :

1240 = 2(510) + 2(110)

1240 = 1020 + 220

1240 = 1240

5 0
2 years ago
Find the measure of arc AB. Round to the nearest tenth if necessary.
Alina [70]

Answer:

Your answer is 120 degrees.

Step-by-step explanation:

3 0
2 years ago
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