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Marat540 [252]
3 years ago
8

Need help with the slope​

Mathematics
1 answer:
Naddik [55]3 years ago
8 0

Answer:

for sure it's a negative since the slop is going down.. other than that, that's all I can help you with since I'm barely learning about that too :)

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If 4 electricians can complete a job in 8 hours how long will it take 3 electricians to complete the same job
levacccp [35]
We know that

if <span>4 electricians can complete a job in 8 hours
then
</span>100% of a job -------> 8 hours
x------------------> 1 hour
x=100/8----> x=12.5%

divide by 4 electricians
12.5%/4-----> 3.125%
that means each electrician can complete 3.125% of a job in 1 hour

therefore
3 electricians-----> 3*3.125%----> 9.375% in 1 hour
so
9.375%-----------> 1 hour
100%--------------> x
x=100/9.375----> x=10.67 hours

the answer is
10.67 hours

8 0
3 years ago
3y +(-2) +48=180 solve for y
GalinKa [24]

Answer:

The answer to the problem is

y = 134/3

Step-by-step explanation

7 0
3 years ago
the sum of two numbers is 17 the larger is 4 less than the than twice the smaller find both numbers ​
Tatiana [17]

Answer:

The first number is 10 and a he second number is 7.

Step-by-step explanation:

Small number= 7

Big number= 7*2=14-4

=10

4 0
3 years ago
A coffee mixture has beans that sell for 0.20 a pound and beans that sell for 0.68. If 120 pounds of beans create a mixture wort
Andrew [12]
X=pounds of coffee bean  ($0.20 per pound)
y=pounds of coffee bean ($0.68 per pound )

We can suggest this system of equations:
x+y=120
(0.20x+0.68 y) / (x+y)=0.54 ⇒  (0.2x+0.68y)=0.54(x+y)

We can solve this system by substitution method.
x+y=120      ⇒  y=120-x

0.2x+0.68(120-x)=0.54[x+(120-x)]
0.2x+81.6-0.68x=0.54(120)
-0.48x+81.6=64.8
-0.48x=64.8-81.6
-0.48x=-16.8
x=-16.8/-0.48
x=35

y=120-x=120-35=85

Answer: the coffee mixture has 35 pounds of coffee beans sold to $0.2 a pound, and 85 pounds of coffee beans sold to $0.68 a pound, the solutions is reasonable because the price of a coffee mixture ($0.54 a pound) is greater  than $0.2 and smaller than $0.68.
             


3 0
3 years ago
Read 2 more answers
If you are traveling 50 km per hour. How long would it take you to go 725 km
Shtirlitz [24]

Answer:

725/50= 14.5

14.5 hours is your answer

i think

6 0
3 years ago
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