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makvit [3.9K]
2 years ago
15

Which statement BEST models the equation

Mathematics
1 answer:
Alex777 [14]2 years ago
8 0

Answer:

b A train backed up 7 feet and then moved

forward 7 feet.

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2. Lani opened a savings account with $450. She
lidiya [134]

Answer: C

Step-by-step explanation:

450 is her initial value

225 is her rate of change or constant rate

5 0
3 years ago
Plss help i beg you!​
Lady bird [3.3K]

Answer:

50

Step-by-step explanation:

you break the number up into pieces that fit each problem

3 0
2 years ago
How many more pound of granola than banana chips does she buy? Item: Pretzels:7/8,Peanuts: 4/8, Raisins: 2/8,Banana chips: 3/8,G
Hunter-Best [27]
She buys 2/8 more pound of granola than banana chips

8 0
3 years ago
4 students is what percentage of 20 students?2 doctors is _____% of 25 doctors.
Ray Of Light [21]

In both cases, we can use a rule of three.

<h2>First part</h2>\begin{gathered} 20\text{ students}\rightarrow100\text{\%} \\ 4\text{ students}\rightarrow x \\ x=\frac{4\text{ students}\cdot100\text{\%}}{20\text{ students}} \\ x=\frac{4\cdot100\text{\%}}{20} \\ x=\frac{400\text{\%}}{20} \\ x=20\text{\%} \end{gathered}

Therefore, 4 students correspond to 20% of 20 students in total.

<h2>Second part</h2>\begin{gathered} 25\text{ doctors}\rightarrow100\text{\%} \\ 2\text{ doctors}\rightarrow x \\ x=\frac{2\text{ doctors}\cdot100\text{\%}}{25\text{ doctors}} \\ x=\frac{2\cdot100\text{\%}}{25} \\ x=\frac{200\text{\%}}{25} \\ x=8\text{\%} \end{gathered}

Therefore, 2 doctors correspond to 8% of 25 doctors in total.

4 0
1 year ago
Find the coordinates of the vertices of polygon H´J´K´L´ after polygon HJKL is dilated using the given scale factor. H(–1, –6),
alex41 [277]

Answer:

  • H'  (-3, -18)
  • J'  (3, -9)
  • K (-15, -3)
  • L = (15, -15)

Step-by-step explanation:

Given:

H(–1, –6), J(1, –3), K(–5, –1), and L(5, –5)

We know that polygons are HJKL relaxes using the scale factor 3. This means that, to find the coordinates of the vertices of the polygon H'J'K'L ', we need to multiply the coordinate system x and y coordinates of each vertex by a factor of 3  proportion as following:

  • H' = (-1*3, -6*3) = (-3, -18)
  • J' = (1*3 , -3*3) = (3, -9)
  • K = (-5*3, -1*3) =(-15, -3)
  • L = (5*3, -5*3) = (15, -15)

8 0
3 years ago
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