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timama [110]
2 years ago
11

Lydia's teacher wants her class to take note of the gas prices around town and round them all to the nearest whole number. Lydia

found these gas prices:
$3.51, $3.84, $3.41, and $3.79.

Which of these prices would round to $3.00?
Mathematics
1 answer:
Dima020 [189]2 years ago
6 0
3.41, due to it being below .50
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Find BC if B(8,-7) and C1-4,-2).
Alika [10]

Using distance formula :

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  • \sqrt{169}

  • 13 \:  \: units
4 0
3 years ago
Multiply and simplify. (4x−7)(x+5)
Solnce55 [7]

Answer:

4x2+13x-35

hope this helps

7 0
2 years ago
Read 2 more answers
PLEASE HELP ME I NEED HELP ASAP!!!! PLEASE HELP ON A AND B
valina [46]

Answer:

<h2>a) x = 16 and y = 6</h2><h2>b) P = 864 in</h2>

Step-by-step explanation:

a)

The opposite sides of the rectangle are of equal length.

Therefore we have the system of equations:

\left\{\begin{array}{ccc}3y=2+x&\text{subtract 2 from both sides}\\3x=2+x+5y&\text{subtract x from both sides}\end{array}\right\\\\\left\{\begin{array}{ccc}3y-2=x&(*)\\2x=2+5y&(**)\end{array}\right

Substitute from (*) to (**):

2(3y-2)=2+5y\qquad\text{use distributive property}\\\\(2)(3y)+(2)(-2)=2+5y\\\\6y-4=2+5y\qquad\text{add 4 to both sides}\\\\6y=6+5y\qquad\text{subtract 5y from both sides}\\\\\boxed{y=6}

Put the value of y to (*):

x=3(6)-2\\\\x=18-2\\\\\boxed{x=16}

b)

Calculate the width and the length:

3x = 3(16) = 48\\\\3y = 3(6) = 18

The perimeter:

P = 2w + 2l\\\\P = (48)(18)=864\ in

8 0
3 years ago
Margie calculated that she would spend $175 on school supplies this year. She actually spent $97.50 on school supplies. What is
Anna007 [38]
Error=100 calculated/actual

error=100 (175-97.5) / 97.5

error=100 (77.5) / 97.5

error=7750 / 97.5

error=77500 / 975

error=3100 / 39

error=79.5% <-- Estimated
8 0
3 years ago
Read 2 more answers
Find the perimeter of a rectangle if one of its sides is 14 and the area is 98
Ratling [72]

Answer:

42

Step-by-step explanation:

Area of a rectange = bh so 98=14x

98 divided by 14 = 7

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so 2x+2y -> 28+14=42

7 0
2 years ago
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