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earnstyle [38]
3 years ago
12

Pls help! Will mark first correct answer brainliest

Mathematics
1 answer:
weqwewe [10]3 years ago
4 0

Answer:

1.25, 40

1.6, 30

Step-by-step explanation:

First, we'll state that the lbs of candy worth $1.25 is A and the lbs of candy worth $1.6 is B.

We write the equations: A + B = 70, (This is the lbs)

and, 1.25A + 1.6B = 1.4(70) (This is money)

Next, choose an equation you want to solve for, in this case, I'll choose A.

In the lbs equation, subtract A from both sides, A - A + B = 70 to get B = 70 - A

Now substitute this equation into the money equation.

1.25A + 1.6(70 - A) = 98

1.25A + 112 - 1.6A = 98

-0.35A = -14

multiply by negative

0.35A = 14

divide

A = 40

Then, you substitute 40 into the lbs equation, 40 + B = 70, making B = 30! Done!

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The titanic was 882 feet 9 inches long. You can build a model of the ship that is 2nfeet 6 inches long and 6 inches high. What w
tigry1 [53]
So the actual titanic was 882 feet and 9 inches long, and the model is 2 feet and 6 inches.

1.) Convert both the model and the real titanic to inches.
882 feet = 10584 inches (multiply 12) plus another 9 inches is 10593 inches

And for the model,
2 feet is 24 inches plus another 6 inches is 30 inches.

2.) Find the scale factor compared to the model and the actual thing.
The actual thing is 10,593 and the model is 30 inches. Divide 10593 by 30 to find the scale factor. You should get <span>353.1

</span>3.) Multiply the scale factor to the height.
Since we have the model height and the scale factor, to find the actual height we can just multiply the model height times the scale factor.

6 inches x 353.1 = <span>2118.6 inches
</span>That means the titanic's actual height is 2118.6 inches

4.) Round to the nearest inch.
Because the instructions say round to the nearest inch, we must round 2118.6 to the nearest inch.
You should get 2119 (because the 6 in the tenths place is greater than 4)

Our final answer is 2119 inches. :)
4 0
3 years ago
Diego collected x kg of recycling. Lin collected 2/5 more than that. [ Select ] Lin biked x km. Diego biked 3/10 less than that.
Daniel [21]

I assume you want to mathematically represent the above

Answer and explanation:

If Diego collected x kg of recycling and Lin collected 2/5 more than what Diego collected, then it would be represented mathematically thus:

Diego = x

Lin = x +2/5 of x= x+2/5x

if Lin biked x km and Diego biked 3/10km less than Lin, then we would represent this thus:

Lin=x

Diego= x-3/10 of x= x-3/10x

If Diego reads for x minutes and Lin reads 4/7 of what Diego read, then mathematically we represent this thus:

Diego=x

Lin =4/7 of x = 4/7x

3 0
3 years ago
Sixteen students each measured the weight of 25 pennies, in grams. The list shows their measurements. 60, 62, 65, 59, 63, 63, 63
saveliy_v [14]
Third one is the answer
5 0
3 years ago
Read 2 more answers
Am I correct? Please correct me if I am incorrect, thank you
velikii [3]
No, I don't think so
7 0
3 years ago
Adalynn planted 20 peach trees over 400 feet.Dwight planted 18 plum trees over 270 feet.Is it proportional relationship.Explain
docker41 [41]

As the ratio 0.050:1 for Adalynn and the ratio 0.067:1 for Dwight are not equivalent, it shows that this is not a proportional relationship.

What is a proportional relationship?

Proportional relationships can be described as relationships between two variables that have equivalent ratios.

The ratio of Adalynn that planted 20 peach trees over 400 feet can be expressed as follows:

20:400

Divide through by 400, we have:

0.050:1

The ratio of Dwight that planted 18 plum trees over 270 feet can be expressed as follows:

Divide through by 270, we have:

0.067:1

Since the ratio 0.050:1 for Adalynn and the ratio 0.067:1 for Dwight are not equivalent, this implies that this is not a proportional relationship.

Learn more about the proportional relationship here: brainly.com/question/12917806.

#SPJ1

8 0
2 years ago
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