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3 years ago

Courtney knows that there are about 2.2 pounds in every kilogram. If she has a medicine ball

Mathematics

1 answer:

soldi70 [24.7K]3 years ago

3 0

Answer:

For this case we know that the medicine ball weighs 3.6 Kg and we know that there are about 2.2 pounds in every Kg.

So then we can find the amount Kg with this expression:

$3.6 Kg *\frac{2.2 pounds}{1 Kg} = 7.92 pounds$

And if we round to the nearest integer we got 8 pounds and the best answer would be:

8 pounds

Step-by-step explanation:

For this case we know that the medicine ball weighs 3.6 Kg and we know that there are about 2.2 pounds in every Kg.

So then we can find the amount Kg with this expression:

$3.6 Kg *\frac{2.2 pounds}{1 Kg} = 7.92 pounds$

And if we round to the nearest integer we got 8 pounds and the best answer would be:

8 pounds

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3. Sophie and Jackie each have a collection of baseball cards, Jackie has 5 more cards than

IRISSAK [1]

Answer:

Sophie has 12.5 cards

Step-by-step explanation:

Let

x -----> number of cards Sophie has

y -----> number of cards Jackie has

we know that

x+y=30 -----> equation A

y=x+5 -----> equation B

Solve by substitution

Substitute equation B in equation A and solve for x

x+(x+5)=30

2x=30-5

x=12.5 cards

Note I assume the problem was invented without taking into account the result, because the amount of cards should be a whole number

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2 years ago

Another landscape architect recommends installing a triangular statue

Dima020 [189]

Answer:

A landscape architect recommends installing a triangular statue with

vertices at (10, −10), (10, −8), and (7, −10).

a. Is the triangle congruent to triangle T ? Justify your answer.

b. Propose a series of rigid motions that justifies your answer to part a.

6. Another landscape architect recommends installing a triangular statue

Step-by-step explanation:A landscape architect recommends installing a triangular statue with

vertices at (10, −10), (10, −8), and (7, −10).

a. Is the triangle congruent to triangle T ? Justify your answer.

b. Propose a series of rigid motions that justifies your answer to part a.

6. Another landscape architect recommends installing a triangular statue

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3 years ago

A triangle has two sides that have a length of 4 cm.

DiKsa [7]

Answer:

3 acute angles with different measures and 1 right angle and 2 acute angles with same measures

8 0

3 years ago

How do you write 9.88 ×10 square in standard form

KIM [24]

U right 9.88•10 in standard form like 98800000000.

8 0

3 years ago

If the coefficient of determination is 0.9, the percentage of variation in the dependent variable explained by the variation in

vagabundo [1.1K]

Answer:

90% of the variation in the dependent variable is explained by the independent variable.

Step-by-step explanation:

We are given the following in the question:

coefficient of determination = 0.9

We have to find the percentage of variation in the dependent variable explained by the variation in the independent variable.

Coefficient of Determination:

The coefficient of determination is a measure that explains and predicts the dependent variable.
It explains the variation in the dependent variable caused by the independent variable.
The coefficient of determination, also known as the R squared value and is obtained by squaring the coefficient of correlation.

$\text{Coefficient of Determination} = R^2 = 0.9 = 0.9\times 100\% = 90\%$

Thus, 90% of the variation in the dependent variable is explained by the independent variable.

8 0

3 years ago