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scoundrel [369]
2 years ago
15

From 93 books to 144 books

Mathematics
1 answer:
tester [92]2 years ago
5 0

51 Books

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For the simple linear equation below, what is the y-coordinate of the ordered pair when the x-coordinate is −5?
NARA [144]

Answer:

-9

Step-by-step explanation:

7 0
3 years ago
Please help asap giving brainiest and lots of points! this is an easy math/ engineering question if you dont know theres online
timama [110]

Answer:

a 230 metera 230 metersa 230 metersa 230 metersa 230 metersa 230 meters

7 0
2 years ago
This last one I need help on too
ExtremeBDS [4]

Answer:

x=\frac{3}{4}+i\frac{\sqrt{7}}{4},\:x=\frac{3}{4}-i\frac{\sqrt{7}}{4}

Step-by-step explanation:

simplify \frac{-3}{x-2} by putting the negative sign on the outside. \frac{2x}{x-1}-\frac{2x-5}{x^2-3x+2}=-\frac{3}{x-2}

find the LCM of the denominators. It is (x-1)(x-2). Multiply by the LCM:

\frac{2x}{x-1}\left(x-1\right)\left(x-2\right)-\frac{2x-5}{x^2-3x+2}\left(x-1\right)\left(x-2\right)=-\frac{3}{x-2}\left(x-1\right)\left(x-2\right)

Simplify:

2x\left(x-2\right)-\left(2x-5\right)=-3\left(x-1\right)

solve: x=\frac{3}{4}+i\frac{\sqrt{7}}{4},\:x=\frac{3}{4}-i\frac{\sqrt{7}}{4}

3 0
3 years ago
Sam has 3x + 4 dollars saved. Tessa has saved 7x + 16 dollars. Together they
Shalnov [3]

Step-by-step explanation:

3x + 4 + 7x + 16 = 110

10x = 90

x = 9

therefore, Sam = $31 and Tessa = $79

Topic: Algebraic Equations

If you like to venture further, do check out my insta (learntionary) where I constantly post math tips! Thanks!

8 0
3 years ago
Read 2 more answers
Niccola travels at an average speed of 40 mph for 50 miles.
sweet [91]

Answer:

36.67 [mile/hour].

Step-by-step explanation:

1) use the formula: V=S/t, where S - entire jorney, v - average speed (required to calculate), t - elapsed entire time.

2) according to the formula above S=50+60=110 miles; t= 50/40 + 1.75=1.25+1.75=3 hours.

3) after the substitutuion  110 and 3 into the formula above:

v=110/3≈36.67 miles/h.

7 0
2 years ago
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