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drek231 [11]
3 years ago
7

Simplify the following expression -(-2a+7)

Mathematics
2 answers:
Marta_Voda [28]3 years ago
5 0
2a-7=0 A=7/2 is the correct answer
Pepsi [2]3 years ago
4 0
The answer would be 2a-7 because a negative times a negative is a postive so -(-2a) is 2a and negative times a postive is a negative so -(7) is -7
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What is the volume of the cone?<br> Cone v = BA<br> 10 cm<br> 0<br> 0<br> 7 cm<br> 0<br> 0
Drupady [299]
If you could Explain more
4 0
3 years ago
which inequality represents the following situation 3/5 times 5 less than a number is no more than 27
andrey2020 [161]

The answer is \frac{3}{5}(x-5) \leq 27


Let's build the expression piece by piece, translating sentences into formulas:


"3/5 times..." \to \frac{3}{5} \times \ldots


"5 less than a number..." \to x-5 \ldots


So, the first block becomes


"3/5 times 5 less than a number..." \to \frac{3}{5}(x-5) \ldots


"...is no more than 27" \ldots \leq 27


So, putting the pieces together, you have the answer



6 0
3 years ago
Please help.
kondor19780726 [428]

Answer :

27.5 minutes

Steps:

1) put into fraction form:

160/20 = 220/x

2) simplify:

160/20 = 8/1

3) cross multiply:

8 • x = 8x

220 • 1 = 220

4) divide on both sides:

8/8 = crosses out

220/8 = 27.5

6 0
3 years ago
A birthday cake is being made using a cylindrical baking pan. The radius of the pan is 4 inches, and the height is 5 inches whic
Aleonysh [2.5K]

Answer:

This formula:

Cylinder Volume   =   π • r² • height

Volume = PI * 4  ^2 * 5

Volume = PI * 16 * 5

Volume = 251.327412  cubic inches

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Pls help!!!!<br> Will mark brainliest
Anni [7]

Answer: D) 3x - 5

Step-by-step explanation:

f(x) - g(x)
f(x) = 1/2x - 3
g(x) = -5/2x + 2

Using the values of f(x) and g(x) gives us the equation:
1/2x - 3 - (-5/2x +2)

By distributing the negative sign, the signs on 5/2 and 2 are flipped, making them positive and negative respectively.

Our new equation is:

1/2x -3 + 5/2x -2
Adding up like numbers gives us:

6/2x - 5

Simplifying 6/2x => 3x

So our final equation is:

3x - 5
Hope this helps!

4 0
2 years ago
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