3 years ago

10 points right only

Mathematics

2 answers:

SIZIF [17.4K]3 years ago

3 0

7/12, 2/3, 17/24, 3/4

shusha [124]3 years ago

3 0

7/12 2/3 17/24 3/4 and that’s it

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A pair of equations is shown below: y = 6x + 9 y = 7x + 7 What is the solution to the pair of equations?

dimaraw [331]

Answer:

x=2, y= 21

Step-by-step explanation:

y = 6x + 9

y = 7x + 7

Since both equations are equal to y, we can set them equal to each other

6x+9 = 7x+7

Subtract 6x from each side

6x+9-6x = 7x -6x+7

9 = x+7

Subtract 7 from each side

9-7 = x+7-7

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Now we need to find y

y = 6x+9

y = 6(2) +9

y = 12 +9

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Answer:

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3 years ago

Which statement about the histogram is true?

Anna007 [38]

Answer:

Step-by-step explanation:

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3 years ago

Jan walks 2 miles at a constant rate of 3 miles per hour and then runs 1 mile at a constant rate of 8 miles per hour.

stealth61 [152]

Answer:

(a).4.36 mph

(b) No

Step-by-step explanation:

We are given that

Jan covered distance,s1 =2 miles

Speed of Jan, a=3 mph

s2=1 mile

b=8mph

We have to find the Jan' s average speed for the entire trip.

Average speed = $\frac{2ab}{a+b}$

Using the formula

Average speed= $\frac{2(3)(8)}{3+8}=4.36mph$

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Average of Jan’s two speeds

$=\frac{a+b}{2}$

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Hence, the average speed in part (a) is not equal to the average of Jan’s two speeds.

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3 years ago