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Rudik [331]
3 years ago
5

A library had a used book sale for 4 days. The library paid $25 for an advertisement each day of the sale and sold each book (b)

for $2.00. The expression below represents the amount of money the library raised at the book sale. How much money was raised when 400 books were sold per day?
Mathematics
1 answer:
alex41 [277]3 years ago
6 0

Answer:

1,982

Step-by-step explanation:

i got It right on edge 2020

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o-na [289]

Answer:

8 units by 10 units

Step-by-step explanation:

150 \div 15 = 10 \\ 120 \div 15 = 8

8 0
3 years ago
Determine if the two triangles are congruent.
stiks02 [169]

Answer:

SAS

Step-by-step explanation:

The two triangles share a side, so that would be reflexive to show that side is congruent. Also, keep in mind that all right angles are congruent! The picture already tells us that the two outer side are congruent. So in conclusion, the two angles are congruent by SAS.

Hope this helps! :)

3 0
3 years ago
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Will mark brainliest!!!
Savatey [412]

Let's call the first unknown integer x and the second one y.

"Four times an unknown integer"

  • We can write it as 4x

"Multiplied by three times the unknown integer plus a different unknown integer"

  • 4x is multiplied by 3x+y, so 4x(3x+y)=12x²+4xy

"Equals 100."

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And so the answer is C: 12x²+4xy-100=0

5 0
3 years ago
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<img src="https://tex.z-dn.net/?f=6%5Csqrt%7B3%7D%2B2%281-%5Csqrt%7B27%7D%29%3D2" id="TexFormula1" title="6\sqrt{3}+2(1-\sqrt{27
skelet666 [1.2K]

Answer:

This is true.

Step-by-step explanation:

Step 1: see that √27 is the same as √3*3*3 and thus 3√3

Step 2: remove parenthesis so that 2(1-3√3) becomes 2 - 6√3

Step 3: observe that the equation now becomes 6√3 + 2 - 6√3 = 2

if you simplify any further, you are left with 0=0, which is true.

Comment if there is any step that requires more details...

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3 years ago
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Given: F(x) = 2x + 3, find F(X+h)-f(x) and simplify.<br> 01<br> 02<br> (2h+6)/h
antiseptic1488 [7]
F(x+h) = 2(x+h) +3= 2x + 2h +3
f(x) = 2x + 5

f(x+h) - f(x) = 2x + 2h + 3- 2x - 3= 2h

[f(x+h) - f(x)]/h = 2h/h = 2

6 0
4 years ago
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