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andriy [413]
3 years ago
8

23.7-2.5x8= Work out

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
8 0

Answer:

23.7 -2.5 X 8 = 23.7 - 20

= 3.7

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Find the slope of the line through each pair of point
Rashid [163]

The slope of the line passes through (-6, 3) and (1, 5) is \frac{2}{7}

<u>Solution:</u>

Given, two points are (- 6, 3) and (1, 5)  

We have to find the slope of a line that passes through the above given two points

Slope of a line that pass through \left(x_{1}, y_{1}\right) \text { and }\left(x_{2}, y_{2}\right) is given as:

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

\text { Here, in our problem, } x_{1}=-6, y_{1}=3 \text { and } x_{2}=1, y_{2}=5

\text { Slope } m=\frac{5-3}{1-(-6)}=\frac{2}{1+6}=\frac{2}{7}

Hence, the slope the line that passes through the given points is \frac{2}{7}

4 0
3 years ago
In one semester, doug and Laura spent a combined 250 hours in the tutoring lab. If doug spent 40 more hours in the lab then Laur
aksik [14]

Answer:

Step-by-step explanation:

What we have is a general equation that says this in words:

Laura's hours + Doug's hours = 250 total hours

Since we don't know either person's number of hours, AND since we can only have 1 unknown in a single equation, we need to write Laura's hours in terms of Doug's, or Doug's hours in terms of Laura's.  We are told that Doug spent Laura's hours plus another 40 in the lab, so let's call Laura's hours "x".  That makes Doug's hours "x + 40".  Now we can write our general equation in terms of x:

x + x + 40 = 250 and

2x = 210 so

x = 105

Since Laura is x, she worked 105 hours in the lab and Doug worked 40 hours beyond what Laura worked.  Doug worked 145.  As long as those 2 numbers add up to 250, we did the job correctly.  105 + 145 = 250? I believe it does!!

8 0
3 years ago
Which inequality is equivalent to -m ≥ 15?
Rashid [163]

Answer:

D

Step-by-step explanation:


8 0
3 years ago
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URGENT HOW MANY STUDENTS SPEAK SPANISH? and it isn’t 14 I tried that and it was wrong
Ray Of Light [21]

Answer:

46 students

Step-by-step explanation:

Brainliest pls? hope it helps :)

Have a good day/night

3 0
3 years ago
5.5B+4R=285, point, 5, B, plus, 4, R, equals, 28
svet-max [94.6K]

Answer:

$285

Step-by-step explanation:

<u>Blueberries:</u>

B = number of pounds of blueberries bought

$5.50 = price of blueberries per pound

$5.50B = total price of B pounds of blueberries

<u>Blueberries:</u>

R = number of pounds of raspberries bought

$4 = price of raspberries per pound

$4R = total price of R pounds of raspberries

<u>Total:</u>

$5.5B + $4R

Since 5.5B+4R=285, then Amit spends in total on both types of berries $285

3 0
3 years ago
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