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Over [174]
3 years ago
7

Simplify by combining like terms.2(−4y − 9) − 5y

Mathematics
1 answer:
jenyasd209 [6]3 years ago
4 0
Multiply out the brackets first.
So 2(-4y-9)-5y becomes -8y-18-5y   [2 times -4y and 2 times -9]
Then simplify -8y-5y-18 to the answer ......-13y-18 or -(13y+18)
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She spent 1/6 of it on snacks and 1/3 of it on a new book. She saves the rest. What fraction of the money did she save?
Doss [256]

Answer:

Step-by-step explanation:

<em>First step is that you need to have the same denominators so 1/3=2/6</em>

<em>If she spent 1/6 on snacks and 2/6 on a book which means she spent 3/6</em>

<em>so the fraction of what she saved is 3/6 or 1/2</em>

4 0
4 years ago
Read 2 more answers
Consider a single spin of the spinner. Which events are mutually exclusive? Choose all that apply. a)landing on a shaded sector
denis23 [38]

Answer: the correct options are b and d.

Step-by-step explanation:

Let us first define what mutually exclusive events are. If two events are mutually exclusive, it means that they cannot happen at the same time. For example, getting a head and a tail at the same time are mutually exclusive.

Considering a single spin of the spinner, the events that are mutually exclusive are

b)landing on a shaded sector and landing on a 3. This is because 3 is unshaded. You can either land on 3 or an unshaded sector at a time

d)landing on an unshaded sector and landing on a number less than 2. This is because the numbers in the unshaded sectors are greater than 2.

3 0
3 years ago
I need help with this math question
ICE Princess25 [194]

Answer:

B. 5

Step-by-step explanation:

Step 1: Rewrite the equation a bit

\frac{7^\frac{3}{4}}{7^\frac{x}{8}}=\sqrt[8]{7}\\7^\frac{3}{4}^-^\frac{x}{8}=7^\frac{1}{8}

Step 2: Place a logarithm base 7 on both sides

7^\frac{3}{4}^-^\frac{x}{8}=7^\frac{1}{8}\\log_77^\frac{3}{4}^-^\frac{x}{8}=log_77^\frac{1}{8}\\(\frac{3}{4}-\frac{x}{8})log_77=\frac{1}{8}log_77\\(\frac{3}{4}-\frac{x}{8})1=\frac{1}{8}1\\\frac{3}{4}-\frac{x}{8}=\frac{1}{8}

Step 3: Solve for x

\frac{3}{4}-\frac{x}{8}=\frac{1}{8}\\\frac{6}{8}-\frac{x}{8}=\frac{1}{8}\\-\frac{x}{8}=-\frac{5}{8}\\\frac{x}{8}=\frac{5}{8}\\x=5

Neat exponent question :)

7 0
2 years ago
Find the reciprocal <br> (Urgent!!)
Mars2501 [29]

Answer:

1) 2

2) \frac{3}{2} or 1\frac{1}{2}

3) 5

4) 3

5) \frac{5}{3} or 1\frac{2}{3}

6) \frac{4}{5}

7) \frac{5}{2} or 2\frac{1}{2}

8) \frac{7}{3} or 2\frac{1}{3}

9) \frac{2}{3}

Step-by-step explanation:

The reciprocal is the fraction flipped. To make sure it is a reciprocal though, multiply the original and the reciprocal. If it is the correct reciprocal, you will get 1 as your answer.

Hope it helps!

3 0
3 years ago
Find the product of (x − 8)^2 and explain how it demonstrates the closure property of multiplication.
Goryan [66]

Answer:x^2-16x+64

Step-by-step explanation:

in the attachment

6 0
3 years ago
Read 2 more answers
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