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baherus [9]
3 years ago
9

If x=9 and y=−2, evaluate the following expression : 6x−8y

Mathematics
2 answers:
Mazyrski [523]3 years ago
4 0

6(9)-8(-2)

6*9=54

8*(-2)=-16

54-16=38

38<-----

Rom4ik [11]3 years ago
3 0

Answer:

70

Step-by-step explanation:

x=9 and y=−2, evaluate the following expression : 6x−8y

plug in

6(9) - 8(-2)

= 54 + 16

= 70

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Which ordered pair would form a proportional retationship with the points in the graph?
shtirl [24]

Answer:

(9, 6)

Step-by-step explanation:

the given points are

(3, 2)

(6, 4)

so, can you see, how the sequence continues ?

I see immediately that for every 3 additional units of x we add 2 units of y.

so, yes, the next point in the sequence is

(6 + 3, 4 + 2) = (9, 6).

so, this point (or ordered pair) follows the same ratio or proportional relationship between x and y as the points already in the graph.

in other words, they are on the same line following the same slope ("y coordinate change / x coordinate change" when going from one point on the line to another).

7 0
2 years ago
What its the exact and estimate of -3.7 +(-6.8) and i need work
hodyreva [135]

Exact:

-3.7 - 6.8 = -10.5

Estimate:

-4 - 7 = -11

6 0
3 years ago
Read 2 more answers
Ron walked 8/10 mile from his grandmothers house to store and then he walked 9/10 mile to his house use benchmarks to estimate a
Neporo4naja [7]
8/10+9/10=17/10=1 7/10=2
2 miles
6 0
3 years ago
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13 cars are parked in a parking lot. each car has four tires. if seven of the tires are damaged then him many tires are in the p
malfutka [58]

Answer:

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Step-by-step explanation:

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13 represents # of cars

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52 represents total tires

52 tires - 7 damaged tires = 45 undamaged tires

4 0
2 years ago
Read 2 more answers
the sides of the rectangle are inreased by a scale factor of 4. The perimeter of the smaller retangle is 20 cm. What is the peri
Vedmedyk [2.9K]
The height of the smaller rectangle, let us say is 5
5 x 4 = 20
(multiply height of rectangle to scale factor)
the length is 4
4 x 4 = 16
(multiply length of rectangle to scale factor)

to find larger factor, divide smaller with larger
16/20 = 1/4

scale factor should be 1/4

multiply 20 with 4

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hope this helps

6 0
3 years ago
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