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3 years ago

Gabriela is 4 times as old as Vanessa. 10 years ago, Gabriela was 9 times as old as Vanessa. How old is Vanessa now?

Mathematics

1 answer:

Rus_ich [418]3 years ago

5 0

Vanessa is 16. When she was 6, he was 54, ten years later he's 64 and she's now 16.

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What is the probability that a student eye color would be blue if their grade in physics is A? A two way table is presented belo

Zarrin [17]

The correct answer is:

16/45.

Explanation:

We want the probability that a student's eye color is blue if they made an A in physics. This means we look at the column for students with an A.

There are 32 students with blue eyes in the A column.

This is out of 32+58=90 students that made an A.

This makes the probability 32/90, which simplifies to 16/45.

8 0

2 years ago

Please Help! Solve for the variable. 12.5 = y - 1.25 .

Rom4ik [11]

Your answer is y = 13.75

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3 years ago

A retired woman has $280,000 to invest. She has chosen one relatively safe investment fund that has an annual yield of 9% and an

ASHA 777 [7]

Answer:

9% fund: $ 210,000

13% fund: $70,000

Step-by-step explanation:

As she wants to have a $28,000 annual return for her $280,000 investment, she is expecting a return rate of 10%:

$r=\dfrac{R}{C}=\dfrac{28,000}{280,000}=0.10$

If we call x the proportion of the capital in the 9% fund, then (1-x) is the proportion of the capital in the 13% fund,and the return of the combination has to be the expected return of 10%:

$0.09x+0.13(1-x)=0.10\\\\0.09x+0.13-0.13x=0.10\\\\-0.04x=0.10-0.13=-0.03\\\\x=\dfrac{0.03}{0.04}=0.75$

Then, we know that 75% of the capital should be invested in the 9% fund and 25% in the 13% fund.

This correspond to a capital of:

9% fund: 0.75*$280,000 = $ 210,000

13% fund: 0.25*$280,000 = $70,000

6 0

3 years ago

What is the stem-and-leaf plot for

Verdich [7]

The stem-and-leaf plot for 29,22,21,6,13,6,17,29,26,9,16,10,25,3,2,23,13,10,7,16,29,30,4,11,7,28,27,22,10 is shown in the image attached below (see attachment).

A stem-and-leaf plot is a table which is used to display a set of data in such a way that, on the left we have the "stem" which displays the first digit or digits of a data value.

On the right, we have the 'leaf' which displays the last digit of the data value.

For example, if we are to represent "25" and "26" on a stem-and-leaf plot, we would have: 2 | 5, 6.

Therefore, the stem-and-leaf plot for 29,22,21,6,13,6,17,29,26,9,16,10,25,3,2,23,13,10,7,16,29,30,4,11,7,28,27,22,10 is shown in the image attached below (see attachment).

Learn more about the stem-and-leaf plot on:

brainly.com/question/8649311

8 0

2 years ago

Evaluate 3yz +20 -xy if x =2, y = -3, and z = 4

makkiz [27]

Answer:

Ans. is -10. Explanation is in the attachment.

6 0

2 years ago