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nikitadnepr [17]
3 years ago
12

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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A map of Scotland is drawn to a scale of 1:325,000. How many centimetres on the map would show 65km?
sergejj [24]
Haiii.. i'm from indonesia..
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5 0
3 years ago
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

<em />

If Tony hits at the game, then Mauricio will hit 4 times as many times + the 20 at practice on mondays

<h2><em>Equation</em></h2><h3><em>4x + 20</em></h3>

<em />

<em>That means if Tony hit 4, Mauricio will hit </em>

<h2><em>4(4) + 20 = 36</em></h2>

Thus, Mauricio will hit 36 balls this week.

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8 0
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.

8 0
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>
4 0
3 years ago
The two cities Midway and Union are 40 km from each other. How far apart would the cities be on a map that has a
allochka39001 [22]

Answer:

4cm

Step-by-step explanation:

40÷10=4 and each dm is 10 km

8 0
3 years ago
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