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love history [14]
3 years ago
9

The sum of 15 and a number is equal to 85. What is the number

Mathematics
1 answer:
mars1129 [50]3 years ago
6 0

Answer:

The sum of 15 and a number is

85 - 15 = 70

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In Andrew’s Furniture Shop, he builds bookshelves and tables. Each type of furniture takes him about the same time to make. He f
Paul [167]
A. You may set the variables in either order. But for argument sake, let's set as follows:

x = Amount of bookshelves
y = Amount of tables

B. Because of the amount of things you need to make, the following is an inequality using those variables.

x + y > 25

Plus you can determine a second inequality based on the amount of money that you have to spend. 

20x + 45y < 675

Finally you may also add in that each value must be greater than or equal to zero, since they cannot have negative tables. 

C. By solving the system and looking at basic constraints when graphed, you can see the feasible region has 4 vertices. 

(0,0)
(18, 7)
(0, 15)
(33.75, 0) or (33, 0) if you insist on rounding. 
8 0
3 years ago
How do i solve 2x(n 3) ??
forsale [732]
<span>Simplifying 2x + n = 3
 
Reorder the terms: n + 2x = 3
 Solving n + 2x = 3
 
Solving for variable 'n'.
 
Move all terms containing n to the left, all other terms to the right.
 
Add '-2x' to each side of the equation. n + 2x + -2x = 3 + -2x
 
Combine like terms: 2x + -2x = 0 n + 0 = 3 + -2x n = 3 + -2x
 
Simplifying n = 3 + -2x</span>
6 0
3 years ago
There are 3 boys to every 5 girls in mrs. kennedy's class. if there are 40 students in the class, how many of those students are
Gala2k [10]

Ratio of girls to boys = 5/3

Number of girls in 40 students would be 3/5 * 40 = 24

4 0
3 years ago
Angie and Becky each completed a separate proof to show that the measures of vertical angles AKG and HKB are equal. Who complete
Helga [31]

Answer:

Becky, because her justification for the second statement should be "definition of supplementary angles" rather than "angle addition postulate."

Step-by-step explanation:

Becky completed the proof incorrectly because her justification for the second statement is not totally correct.

Angle addition postulate does not really apply here, as the sum of 2 angles may not give you exactly 180°.

However, the second statement, m<AKG + m<GKB = 180° and m<GKB + m<HKB = 180°, can be justified by the "Definition of Supplementary Angles".

The sum of supplementary angles = 180°.

Therefore, Becky completed the proof incorrectly.

6 0
2 years ago
Help!!!! And is the first on correct
ExtremeBDS [4]
2s+5<span>≥49

First: Subtract 5 on both sides
You'll get: 2s </span><span>≥ 44
Last: Divide each side by 2 so your s would be alone
You'll get: s </span><span>≥ 22 <That would be your answer

HOPE THIS HELPS! ^_^</span>
7 0
3 years ago
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