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3 years ago

Evaluate b – 2a – c for a = –3, b = 9, and c = –6.

Mathematics

2 answers:

Zielflug [23.3K]3 years ago

7 0

answer is 21

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telo118 [61]3 years ago

3 0

b – 2a – c
= 9 - 2(-3) - (-6)
= 9 + 6 + 6
= 21

answer
21

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Write a different expression that has the same quotient as (-3)/8 and -(3/8)

True [87]

Answer:

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Step-by-step explanation: Look at answer above.^^^

3 0

3 years ago

Which is greater 80% or 7/8

tankabanditka [31]

7/8 equals 0.875

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3 years ago

Katy and Jane construct a four-sided wall to surround their castle. The wall has a perimeter of

PilotLPTM [1.2K]

Answer:

The correct length is 34 feet.

Step-by-step explanation:

Let us assume that the wall created is a rectangle ABCD as shown in the attached image.

We know that opposite sides of a rectangle are equal.

Perimeter of a closed figure is calculated by adding all the sides of the figure.

Here, from the figure, the perimeter is : AB + BC + CD + DA

AB and CD are equal to length.

BC and DA are equal to width.

So,

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Here, we are given that perimeter is 100 feet and width = 16 feet

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$100 = 2 \times (16 + length)\\\Rightarrow 50 = 16 + length \\\Rightarrow length = 34 feet$

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5 0

3 years ago

0.8y+0.25= -0.4 Solve for y

disa [49]

Answer:

y = -13/16

Step-by-step explanation:

Given:

0.8y+0.25= -0.4

To Find:

Solve for y

Solution:

Multiply both sides by 100

$0.8y\cdot \:100+0.25\cdot \:100=-0.4\cdot \:100$

Simplify

$80y+25=-40$

Subtract 25 from both sides

$80y+25-25=-40-25$

Simplify

$80y=-65$

Divide both sides by 80

$\frac{80y}{80}=\frac{-65}{80}$

Simplify

$y=-\frac{13}{16}$

Thus, y = -13/16

or in decimal form it equal y = -0.8125

~Lenvy~

7 0

2 years ago

Read 2 more answers