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Trava [24]
3 years ago
8

2.4(3x+2)+0.3(x+4)=6.6

Mathematics
2 answers:
Lunna [17]3 years ago
8 0
X = 0.08

i got it right
mel-nik [20]3 years ago
4 0

Answer:

x =.08

Step-by-step explanation:

2.4(3x+2)+0.3(x+4)=6.6

Distribute

7.2x +4.8 +.3x +1.2 = 6.6

Combine like terms

6 + 7.5x = 6.6

Subtract 6 from each side

6-6 + 7.5x = 6.6-6

7.5x =.6

Divide each side by 7.5

7.5x/7.5 = .6/7.5

x =.08

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"A serving of fish contains 50 g protein and 4 g of fat. If protein has a caloric value of 4 kcal/g and fat has 9 kcal/g, how ma
evablogger [386]

Answer: 236 kcal

Step-by-step explanation:

Given : A serving of fish contains 50 g protein and 4 g of fat.

i.e. content of protein = 50 g

content of fat = 4 g

Also, The caloric value in protein = 4 kcal/g

The caloric value in fat = 9 kcal/g

Calories in 50 g  protein = (content of protein)x (caloric value in protein )

= 50g x 4 kcal/g = 200 kcal

Calories in 4 g fat=  (content of fat)x (caloric value in fat)

=4 g x  9 kcal/g =  36 kcal

Then, the total calories in the serving will be :Calories in 50 g  protein + Calories in 4 g fat

= 200 kcal+ 36 kcal =236 kcal

Hence, there are 236 kcal  in the serving.

7 0
4 years ago
HELP ASAP PLZ PLZ PLZ I GIVE BRAINLIEST
Yuki888 [10]

Answer:

12

Step-by-step explanation:

We can see that the base TA is 4, and the second base RS is 2. We can see that the height is 4. The area of a trapezoid is:

A=\frac{h(b_1+b_2)}{2}

Using this, we can substitute, and get:

A=\frac{4\cdot(2+4)}{2} = \frac{24}{2} = 12

Hope it helps!!

5 0
3 years ago
Angle x is a third quadrant angle such that cos x = -1/5.
Yuki888 [10]

Starting from the formula

\cos^2(x)=\dfrac{1+\cos(2x)}{2}

We can divide all the angles by 2 and we get

\cos^2\left(\dfrac{x}{2}\right)=\dfrac{1+\cos(x)}{2}

And finally

\cos\left(\dfrac{x}{2}\right)=\pm\sqrt{\dfrac{1+\cos(x)}{2}}

Angle x is a third quadrant angle, meaning that it is somewhere between 180 and 270. This implies that x/2 lies between 90 and 135. So, x/2 is a second quadrant angle, and its cosine is negative. This means that we can update the previous equation to

\cos\left(\dfrac{x}{2}\right)=-\sqrt{\dfrac{1+\cos(x)}{2}}

You know that

\cos(x)=-\dfrac{1}{5}

so, plug that value into the expression and you'll get cos(x/2).

4 0
3 years ago
Adrian's recipe for cranberry relish calls for 1 3_4cups of sugar. He wants to use 1_2that amount. How much sugar should he use?
elena-s [515]

Answer:

7/8

Step-by-step explanation:

Andrea recipe for cranberry relish is

1 3/4

= 7/4

He wants to use 1/2 of that amount

Therefore the amount of sugar he should use can be calculated as follows

= 7/4×1/2

= 7/8

5 0
3 years ago
You are doing a research project for class and will be analyzing data to create a presentation for your peers.
Flauer [41]

Answer:

You have to write this based on yourself. Just answer each question one by one and then you can compare a whole paragraph.

So for each question you have to choose what you believe you are.

Which social class do you belong to; lower, middle, or upper class?

Why? This could be because you're well off or because you don't have that much money, it depends on which class you believe you are.

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In your everyday choices, whom do you tend to take as a reference point? This is basically asking who influences you, for example your mother or your brother, who do you use as your guidance for how you act. The remaining questions are just asking to specify who, your peers or family members, it's just an addition to the main question.

Step-by-step explanation:

Hope this helps:)

5 0
3 years ago
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