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Flauer [41]
3 years ago
7

Evaluate the function ,when D = {9, 15, 30}.

Mathematics
2 answers:
Anna [14]3 years ago
6 0

The answer is R={6, 10, 20}

asambeis [7]3 years ago
4 0

unable to evaluate the triangle

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Mrs. Lang is 4 times as old as her daughter Jill. The sum of their ages is 60 years. Set up the two equations that can be used t
KatRina [158]

Answer:

The two equations that can be used to find each of their ages are x=4 \times y and x+y=60 .

Step-by-step explanation:

We are given that Mrs. Lang is 4 times as old as her daughter Jill. The sum of their ages is 60 years.

Let the age of Mrs. Lang be 'x years' and the age of her daughter Jill be 'y years'.

Now, according to the question;

  • The <u>first condition</u> states that Mrs. Lang is 4 times as old as her daughter Jill, that means;

                                     x=4 \times y   ----------------- [equation 1]

  • The <u>second condition</u> states that the sum of their ages is 60 years, that means;

                                 x+y=60

                                4y + y = 60     {using equation 1}

                                  5y=60

                                   y=\frac{60}{5}

                                   y = 12 years

Now, putting the value of y in equation 1 we get;

                               x=4 \times y

                               x= 4 \times 12 = 48 years

Hence, the age of Mrs. Lang is 48 years and her daughter Jill is 12 years old.

8 0
3 years ago
There is a decrease in power. It can be concluded that there has also been a change in: A)current or voltage.
Serhud [2]
There is a decrease in power. It can be concluded that there has also been a change in:

A) current or voltage.
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SE NÃO ME ENGANO A RESPOSTA É A 10
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3 years ago
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Can someone please help me with this problem?
Vedmedyk [2.9K]

Answer: -13

Step-by-step explanation:

c-2y

= -5-2(4)

= -5 - 8

= -13

5 0
3 years ago
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If 4 blocks weigh 28 ounces how many blocks weigh 70 ounces
Sloan [31]

Answer:

10 blocks.

Step-by-step explanation:

Find the unit rate.

\frac{28}{4}=\frac{7}{1}=\frac{70}{10}

Therefore, 10 blocks weigh 70 ounces.

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3 years ago
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