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Advocard [28]
3 years ago
6

What is 8 times the sum of 7 and 6

Mathematics
2 answers:
amid [387]3 years ago
8 0
SO first you would add 6 plus 7 and you get 13 and now you do 13 times 8 which is 104 
Hoped i helped 
sesenic [268]3 years ago
7 0
Sum means the answer to an addition problem, so 7 plus 6 is 13 and 13 times 8 is 104
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Communicate Due to global climate changes, more hurricanes are expected to hit the Gulf Coast. What might happen to gas and oil
nasty-shy [4]
Oil and gas production would most likely stop because it is very dangerous to be outside in a hurricane.
8 0
3 years ago
Solve the system by substitution.<br> [-2.5x+y = 13.5<br> 12.25x - y=-12.25
IrinaK [193]

Answer:

x = 5/39 , y = 539/39

Step-by-step explanation:

Solve the following system:

{y - 2.5 x = 13.5

12.25 x - y = -12.25

In the first equation, look to solve for y:

{y - 2.5 x = 13.5

12.25 x - y = -12.25

y - 2.5 x = y - (5 x)/2 and 13.5 = 27/2:

y - (5 x)/2 = 27/2

Add (5 x)/2 to both sides:

{y = 1/2 (5 x + 27)

12.25 x - y = -12.25

Substitute y = 1/2 (5 x + 27) into the second equation:

{y = 1/2 (5 x + 27)

1/2 (-5 x - 27) + 12.25 x = -12.25

(-5 x - 27)/2 + 12.25 x = 12.25 x + (-(5 x)/2 - 27/2) = 9.75 x - 27/2:

{y = 1/2 (5 x + 27)

9.75 x - 27/2 = -12.25

In the second equation, look to solve for x:

{y = 1/2 (5 x + 27)

9.75 x - 27/2 = -12.25

9.75 x - 27/2 = (39 x)/4 - 27/2 and -12.25 = -49/4:

(39 x)/4 - 27/2 = -49/4

Add 27/2 to both sides:

{y = 1/2 (5 x + 27)

(39 x)/4 = 5/4

Multiply both sides by 4/39:

{y = 1/2 (5 x + 27)

x = 5/39

Substitute x = 5/39 into the first equation:

{y = 539/39

x = 5/39

Collect results in alphabetical order:

Answer: {x = 5/39 , y = 539/39

5 0
3 years ago
6. Solve 2.6x + 2 &gt; -12.5 and graph the solution on a number line.
lesya [120]

Answer:

x>−5.576923

Step-by-step explanation:

2.6x+2>−12.5

Step 1: Subtract 2 from both sides.

2.6x+2−2>−12.5−2

2.6x>−14.5

Step 2: Divide both sides by 2.6.

2.6x

2.6

>

−14.5

2.6

x>−5.576923

6 0
3 years ago
If an object moving at 1 mile/hour accelerates 1 mile/hour for every meter it travels, how fast will it be travelling in half of
d1i1m1o1n [39]

Answer:

Speed = 0.0003miles/hr

Step-by-step explanation:

Speed of object = 1 mile/hour

For every meter it travels, its acceleration increases by 1 mile/hour

∆Distance = increase in distance

∆speed = 1 meter

The speed and the distance are constant

Speed = distance/time

Time = distance/speed = 1meter/(1 miles/hr)

Convert meter to miles

1609.34 meters = 1mile

1meter = (1meter × 1mile)/(1609.34 meters)

1 meter = (1/1609.34)miles

Time = distance/speed = (1/1609.34)miles/(1 miles/hr)

Time = (1/1609.34)hr

We are to determine the speed the object would be travelling in half of an hour?

In 1hr, it travels (1/1609.34)miles

In ½hr, it travels = (1/1609.34)(½)hr

Speed = 0.0003miles/hr

It will be travelling 0.0003miles/hr in half of an hour

6 0
3 years ago
HELP GIVING CROWN IF ANSWERED RIGHT!!!!!
olganol [36]
If my math is right it should be B)
8 0
3 years ago
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