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liberstina [14]
3 years ago
5

I need the answer for this problem

Mathematics
1 answer:
kiruha [24]3 years ago
8 0

Answer:

1.8x10^-4

Step-by-step explanation:

I did it by the calculator

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By substitution. <br> 3x-y=-13 <br> y=4
ser-zykov [4K]

Answer:

(-3,4)

Step-by-step explanation:

3x-y=-13

y=4

Substitute the second equation into the first equation

3x - 4 = -13

Add 4 to each side

3x -4+4 = -13+4

3x = -9

Divide by 3

3x/3 = -9/3

x = -3

(-3,4)

7 0
3 years ago
Can someone please help me with this problem?
pentagon [3]
The slope would be 0 because if you put in the coordinates with the formula, you would get the slope as 0. This also makes sense because both points have the same y point, so that means that the line wasn’t travelling up or down. And since it was only going through -8 that would be the y-intercept.

7 0
3 years ago
A brand of cereal had 1.2 milligrams (mg) of iron per serving. Then they changed their recipe so they had 1.8 milligrams (mg) of
Pavel [41]

Answer:

The percent increase in iron = 50 %

Step-by-step explanation:

Initial amount of iron per serving = 1.2 mg

After an increase the amount of iron per serving = 1.8 mg

Increase in  the amount of iron per serving = 1.8 - 1.2 = 0.6 mg

Percent increase in iron is calculated as

% increase = \frac{Final amont - initial amount }{initial amount}Change = \frac{Final \ amount - initial \ amount }{initial \ amount} (100)

Put the values in above formula we get

\frac{0.6}{1.2} (100) =   50 %

Therefore the percent increase in iron = 50 %

5 0
3 years ago
A yacht travels at a rate of 8 miles per hour for 10 hours. Let y bet the distance, in miles, the yacht travels for a given amou
Stolb23 [73]

Answer: the answer is B or 2

Step-by-step explanation:

8 0
1 year ago
Read 2 more answers
The sum of three consecutive integers is 1,623
svetoff [14.1K]
Well to solve this you write out three equations 
x+(x+1)+(x+2)=1623

then

3x=1620
x=540

so the three consecutive integers are 540,541, and 542.
3 0
3 years ago
Read 2 more answers
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