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3 years ago

5a + 18 < −27 pre algibra

Mathematics

2 answers:

Grace [21]3 years ago

5 0

Answer:

X < -9

Step-by-step explanation:

5a +18 < -27

5a < -27 -18

5a < - 45

5a/5 < - 45/5

a < - 9

Answred by Gauthmath

Mrac [35]3 years ago

3 0

Answer: -9

Step-by-step explanation:

5a+18 < -27

5a< -27-18

5a<-45

a< -45/5

a< -9

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Mauricio hits a baseball 4 times as often as Tony each game. He also hits 20 baseball's every Monday at practice. How many baseb

Alenkinab [10]

Answer:

36 hits

Step-by-step explanation:

Suppose Tony hits the ball x times and Mauricio hits a baseball 4 times as often as Tony each game.

So, Mauricio's hit = 4x

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3 years ago

Complete the equation of the line through (-10,-7) and (-5, -9).<br>Use exact numbers,

steposvetlana [31]

Answer:

$y=\frac{-5}{2}*x + 18$

Step-by-step explanation:

A line in 2-dimensional space has the following general equation:

$y=m*x+b$

Where m is the slope of the line, and b just a number

the slope can be obtaine using th following formula:

$m=\frac{x_{2} - x_{1} }{y_{2} - y_{1}}$

The point 2 is the one with the smallest value for x, that is (-10,-7) and the Point 1 is any other that belongs to the line, in this case, (-5,-9)

$m=\frac{-5 - (-10) }{-9 - (-7)}$

Resulting that $\frac{-5}{2}$

To find the other term we can use any other point, I prefer us the first one so...

We have the following equation:

$-7=\frac{-5}{2}*(-10)+b$

Resulting that b=18

I just have to eval the point (-10,-7) in the equation stated at the beginning knowin that m was calculated previously.

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3 years ago

Read 2 more answers

What is 4a+7b+3a-2b+2a;a=-5 and b=3

Dima020 [189]

<span>4a+7b+3a-2b+2a
Substitute all of the variables for the numbers given
4(-5)+7(3)+3(-5)-2(3)+2(-5)
Multiply all of the variables by their coefficient
-20+21-15-6-10
Combine like terms
Final Answer: -30
</span>

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3 years ago

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allochka39001 [22]

Answer:

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Step-by-step explanation:

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