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yuradex [85]
3 years ago
7

Three times the sum of the opposite of a number and -7

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
4 0
<h2>correct answer: -3x - 21</h2>
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Evan used base-10 blocks to model the product of 3 and 0.51.
Lilit [14]

Base 10 blocks are used to perform arithmetic operations.

To model the product of 3 and 0.51, Evan needs <em>3 copies of 5 tenths and 1 hundredths.</em>

The expression can be represented as:

\mathbf{3 \times 0.51}

Express 0.51 as 0.5 + 0.01

\mathbf{3 \times 0.51 = 3 \times (0.5 + 0.01)}

  • 0.5 means 5 tenths
  • 0.01 means 1 hundredths
  • 3 means that, the above blocks are needed in three places.

Hence, Evan needs <em>3 copies of 5 tenths and 1 hundredths.</em>

<em />

<em />

Read more about base 10 blocks at:

brainly.com/question/7621712

8 0
3 years ago
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PLEASE HELP FAST <br><br>WILL MARK BRAINLIST
liq [111]

Answer:

1, (c) 2,(c) 3,(a)

Step-by-step explanation:

1, f (x) = 2-x and f(2) = 2-2

for example f(-4) = 2-(-2) = 0

=4

3, 120° - 60° = 60

5 0
3 years ago
What is the range of function f in the function f(x)= -(2)^x + 4
tangare [24]

Answer:

A. {y | -∞ < y < 4}

General Formulas and Concepts:

<u>Algebra I</u>

  • Range is the set of y-values that are outputted by function f(x)<u> </u>

Step-by-step explanation:

According to the graph, we can see that we have a horizontal asymptote at y = 4. Our y-values stretch from negative infinity to the horizontal asymptote.

∴ our answer would be A.

3 0
3 years ago
A recipe for 10 servings of raspberry sorbet calls for 2 cups of water, 1/1.2 cups of granulated sugar, and 4 cups of frozen ras
babunello [35]
We know that 16 cups are in 1 gallon
We also know that 10 servings = 2 cups


Now that means 80 servings = 1 gallon
That means we need 320 / 80=4

It is A 4 gallons 
Hope this helps
3 0
3 years ago
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5x−4y=−10<br> y=2x−5<br> ​ <br><br> x=x=x, equals <br> y=y=y, equals
Dafna11 [192]

Answer:

<h2><u>✎</u><u> </u><u>ANSWER:</u><u>-</u></h2>

y = 2x - 5

Substitute the value of y as 2x - 5 in the equation.

5x - 4y =  - 10 \\ 5x - 4(2x - 5) =  - 10 \\ 5x - 8x + 20 =  - 10 \\ 5x - 8x =  - 10 - 20 \\   - 3x =  - 30 \\ x =  \frac{ - 30}{ - 3}  \\ x = 10

Now, find the value of y

y = 2x - 5 \\ y = 2(10) - 5 \\ y = 20 - 5 \\ y = 15

⎇ x = x = x, equals <u>1</u><u>0</u>

⎇ y = y = y, equals <u>15</u>

5 0
3 years ago
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