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rosijanka [135]
2 years ago
13

Literally help , I think it’s segment addition/ subtraction ?

Mathematics
1 answer:
suter [353]2 years ago
3 0

Answer:

9

Step-by-step explanation:

4x-7+3x=5x+1

7x-7=5x-1

7x=5x+8

2x=8

x=4

4(4)-7=?

16-7=9

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The revised Daily Value for calcium is 1,300 mg per day. How many servings of this food would you have to eat to get 100% DV for
Ne4ueva [31]

Answer:

Taking into account the values showed for this food (image attached). It is required

5  

Servings.  

Step-by-step explanation:

The total calcium (Cat) required is 1300 mg/day.  

One serving of this food can have 260 mg.  

First step is to suppose one day of calculation. t = 1 day.

Cat = (1300 mg/day)(1 day) = 1300 mg Calcium.

One single serving can have 260 mg Calcium (Cas). So, we need to calculate the amount of servings (N) required to complete 1300 mg.

Cat = Cas*N

N = Cat/Cas = 1300 mg/260mg

N = 5.

Finally amount of servings is five N = 5.  

8 0
3 years ago
Jorge has a loan of $25,230. This loan
Fed [463]

Answer:

D. $26,743.80

Step-by-step explanation:

25230(1+ .06(1))

type that in a calculator and you will get the correct answer of D.

Also I literally learned this 5 minutes ago and my teacher said I was correct.

7 0
3 years ago
28= -2u<br> u= ?<br> Basically, U equals what?
vredina [299]
Answer: U=-14
Explanation:
4 0
3 years ago
Please help!! What is the equation of this line in slope-intercept form? <br><br>(see picture)​
faust18 [17]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
We wish to construct a 90% confidence interval on the mean of a population known to be normally distributed based on a sample of
sergiy2304 [10]

Answer:

Margin of error = 0.773

Step-by-step explanation:

We are given the following information in the question.

Sample size, n = 20

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90% Confidence interval

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Putting the values, we get,  

t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.10} = \pm 1.729  

Margin of error:

t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

1.729(\frac{2}{\sqrt{20}} ) = 0.773  

7 0
3 years ago
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