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777dan777 [17]
3 years ago
10

Solve for d. 1.2+d+0.4=9.7

Mathematics
2 answers:
lakkis [162]3 years ago
7 0
The answer is 8.1
You subtract 1.2 from 9.7 and get 8.5
Then you subtract 0.4 from 8.5 and get 8.1 which is the answer
Advocard [28]3 years ago
3 0
Move everything around. d+1.6=9.7. d=8.1.
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Multiply. Express your answer in simplest form.
kodGreya [7K]

Step-by-step explanation:

1.) First, you need to take the whole numbers (9 and 1) and set them aside.

2.) Multiply the numerators from each fraction by one another. The numerators are the numbers on the top of the fraction. (Whatever you get on that will be the numerator of the answer!)

3.) Multiply the denominators by each other as well. The denominators are the numbers on the bottom. This will be the denominator of your answer.

4.) Now, you need to multiply your whole numbers (9 and 1) together.

5.) Then, simplify or reduce your answer. (this can't be simplified, as it is already in its simplest form)

Your answer will be 9 1/66.

Your work should look like this in the end:

4 0
3 years ago
The average American consumes 8.8 liters of alcohol per year. Does the average college student consume less alcohol per year? St
lianna [129]

Answer:

Null hypothesis: u = 8.8 liters

Alternative hypothesis: u < 8.8 liters

Step-by-step explanation:

The null hypothesis is always opposite to Tue alternative hypothesis and is the default hypothesis.

In this case study, the null hypothesis is that the average American consumes 8.8 liters of alcohol per year: u = 8.8

The alternative hypothesis is that does the average American consumes less than 8.8 liters of alcohol per year: u < 8.8 liters

5 0
3 years ago
What are the solution(s) of x2-4-0?<br> X= 4 or X=4<br> X=-2 or x= 2<br> x=2<br> x=4
Pavel [41]

Answer:

Step-by-step explanation:

First you add 4 on both sides

X^2=0

Then you take square on both sides

X=+- the square root of 4

Simplify that

X=plus or minus 2

The answer can be either -2 or +2 (which is just 2)

5 0
2 years ago
2(t+1)=10. <br><br><br><br> need the answer for t I got the rest just can't get t
harkovskaia [24]

Answer: t=4

<u>Simplify both sides of the equation</u>

<u></u>(2)(t)+(2)(1)=10(Distribute)\\2t+2=10<u></u>

<u></u>

<u>Subtract 2 from both sides</u>

<u></u>2t+2-2=10-2\\2t=8<u></u>

<u></u>

<u>Divide both sides by 2</u>

<u></u>\frac{2t}{2} =\frac{8}{2} \\t=4<u></u>

6 0
3 years ago
Read 2 more answers
What does powers of fractions mean <br> we learned it today and i didn't get it
Leokris [45]
Its same as powers of a whole number.
Lets take example
(1/2)²=1/2×1/2=1/4
We can write it in a different way (0.5)²=0.5×0.5=0.25
4 0
3 years ago
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