Write a variable expression that represents the word problem. Gisele gave d dimes and n nickles to her brother. Which expression represents the amount in dollars that Gisele gave to her brother?

Answers

Answer 1
Answer: A variable expression is an equation made with variables, you are trying to find the total amount of money Gisele gave her brother. Let d be dimes, n be nickles, and y be the total dollar amount, y=n+b

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HELPPP ASAPPP! PLZWhich system has no solution? A.4y = 2x – 6 B.3x + 5y = 7 4x = 2y – 5 C.2y = 4x + 2 D.2x = 5y + 4 15y = 6x – 12
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A die is loaded so that the number 6 comes up three times as often as any other number. what is the probability of rolling a 1 or a 6?

Answers

The probability of rolling a value of 1 or 6 for the unfair die ls 1/2

The probability of an event is given as :

P(event) = Required outcome / Total possible outcomes

Let the probability of other numbers on the die = n

Therefore, Probability of 6 = 3n

The Cummulative probability can be expressed thus since the Cummulative sun must be equal to 1 :

Other values on the die are 5 ; 1, 2, 3, 4, and 5

5n + 3n = 1

8n = 1

n = 1/8

The probability of other numbers = 1/8

Probability of 6 = 3(1/8) = 3/8

Probability of (1 or 6) = P(1) + P(6) = 1/8 + 3/8 = 4/8 = 1/2

Therefore, the probability of obtaining 1 or 6 is 0.5

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Answer:

1/2.

Step-by-step explanation:

Probability totals must add up to 1.

P = probability.

If P(any number other than 6) = x,  then P(6) = 3x, so

3x + 5x = 1

x = 1/8

P(6) = 3/8 and P(not 6) = 1/8

Therefore P(6 or 1) = 3/8 + 1/8 = 1/2 (answer).


Hiro is creating a smaller scaled replica of a triangular canvas. Which of the following expressions will help him determine the length of segment AB?


AB = AD


AB = AC


AB= AC times AE/AD


AB= AE times AD/AB

Answers

Answer:

AB= AC times AE/AD

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional

so

In this problem

AB/AC=AE/AD

solve for AB

AB=(AC)(AE)/AD

Answer:

AB= AC times AE/AD

Step-by-step explanation:

AB is on the segment AC, therefore it is proportional to AC.

In order to fulfill the requirement that triangle ABE is a smaller scaled replica of triangle ACD, a scale factor must be applied to the sides of the original figure; in this case, the factor is AE/AD.

Show work please I need help with both questions 3 and 5 thanks

Answers

Answer:

B) {8.71}

Step-by-step explanation:

3. l.c.m=28

28×3/7=28×b-7/4

4×3=7(b-7)

12=7b-49

12+49=7b

61=7b

61/7=7b/7

8.71=b

b=8.71.

Liana started to evaluate the function f(x) = 2x2 – 3x + 7 for the input value 2.f(x) = 2(2)2 – 3(2) + 7

= 2(4) – 3(2) + 7

What is the value of the function when x = 2?

Answers

f(x) = 2x² - 3x + 7

x = 2

f(2) = 2(2²) - 3(2) + 7
f(2) = 2(4) - 6 + 7
f(2) = 8 - 6 + 7
f(2) = 15 - 6
f(2) = 9

The value of the function when x = 2 is 9.
If you would like to know the value of the function when x = 2, you can calculate this using the following steps:

f(x) = 2 * x^2 - 3 * x + 7
x = 2
f(2) = 2 * 2^2 - 3 * 2 + 7 = 2 * 4 - 6 +7 = 8 - 6 + 7 = 9

The correct result would be 9.

Fine the equation of the line

Answers

Answer:

x = -3         y = -1

Step-by-step explanation:

The line goes down by 3 and by 1

Which ratios is equivalent to 12 over 2 ?

Answers

Answer: 12:2, 6:1, 24:4

Step-by-step explanation: