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2 years ago

14. Sara is reading a 280 page book. If she has read 174 pages, what percent of the book

Mathematics

2 answers:

goldfiish [28.3K]2 years ago

7 0

Answer:

106

Step-by-step explanation:

280 - 174 = 106

alex41 [277]2 years ago

4 0

280-174=106
106/280=.3785=37.85%

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Suppose you had x dollars in your bank account. You spent $22 but have at least $28 left. How much money did you have initially?

skelet666 [1.2K]

Answer:

Step-by-step explanation:

spent 22 ---> x - 22.

at least 28 left ---> (x - 22) >= 28

SOLVE:

x - 22 >= 28

x >= 50

8 0

3 years ago

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9. Plot the points A (-2,3), B(2,-3), C(2,3) ,D(-2,3) join the points and find the distance between each point.

pav-90 [236]

Answer:

AB=7.21 unit

BC=6 unit

CD=7.21 unit

AD= 6 unit

AC=4 unit

BD=4 unit

Step-by-step explanation:

Coordinates of A =(-2,3)

Coordinates of B = (2,-3)

Coordinates of C = (2,3)

Coordinates of D =(-2,-3)

Distance formula : $d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$A=(x_1,y_1)=(-2,3)\\B=(x_2,y_2)=(2,-3)\\AB = \sqrt{(2+2)^2+(-3-3)^2}$

AB=7.21 unit

$B=(x_1,y_1)=(2,-3)\\C=(x_2,y_2)=(2,3)\\BC=\sqrt{(2-2)^2+(3+3)^2}$

BC=6

$C=(x_1,y_1)=(2,3)\\D=(x_2,y_2)=(-2,-3)\\CD=\sqrt{(-2-2)^2+(-3-3)^2}$

CD=7.21

$A=(x_1,y_1)=(-2,3)\\D=(x_2,y_2)=(-2,-3)\\AD=\sqrt{(-2+2)^2+(-3-3)^2}$

AD=6

$A=(x_1,y_1)=(-2,3)\\C=(x_2,y_2)=(2,3)$

$AC=\sqrt{(2+2)^2+(3-3)^2}$

AC=4

$B=(x_1,y_1)=(2,-3)\\D=(x_2,y_2)=(-2,-3)$

BD= $\sqrt{(-2-2)^2+(-3+3)^2}$

BD=4

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3 years ago

An account that yields 6% simple interest annually has $2,000. How much will be in the account after 3 years if no other deposit

Mazyrski [523]

Answer:

$2,382.03

Step-by-step explanation:

Interest = Principal x Rate x Time

6 0

2 years ago

What is the point slope form of (7,-4) and (-1,3)

BaLLatris [955]

Answer:

y-3 = -7/8(x+1)

Step-by-step explanation:

The slope of a line given two points is given by

m = (y2-y1)/(x2-x1)

= (3 - -4)/(-1 -7)

= (3+4) / (-1-7)

= 7/ -8

= -7/8

The point slope form of a line is

y-y1 = m(x-x1)

y - 3 = -7/8( x - -1)

y-3 = -7/8(x+1)

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3 years ago

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Kayla squared a number x and added this result to -6.5. This gave her an answer of 42.5.

ladessa [460]

Answer:

7, -7

Step-by-step explanation:

x^2-6.5= 42.5 add 6.5 to both sides

x^2= 49

The square root of 49 is 7 and -7.

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3 years ago