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mestny [16]
3 years ago
8

Simplify the expression. 2.5 – 3.1 – 3.86 + 2.7 – 4.01

Mathematics
1 answer:
earnstyle [38]3 years ago
4 0
2.50 - 3.10 - 3.86 + 2.70 - 4.01 =
-6.30
So; the answer is -6.30.
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What is the equation in point slope form of the line passing through (0,5) and (-2,11)
IRISSAK [1]

The equation of the line passing through (x_1,y_1) and (x_2,y_2) is

\frac{x-x_1}{y-y_1} =\frac{x_2-x_1}{y_2-y_1}. Here

\frac{y_2-y_1}{x_2-x_1} is the slope of the line.

Substituting numerical values, the equation of the line is

\frac{x-0}{y-5} =\frac{-2-0}{11-5} \\ \frac{x}{y-5} =-\frac{1}{3} \\ 3x=5-y\\ 3x+y=5

The equation of the line is 3x+y=5

6 0
2 years ago
what happens to the value of the expression 5/x + 5 as x decreases froma large positive number to a small positive number
agasfer [191]

Answer:

The value increases

Step-by-step explanation:

the smaller the divisor, the larger the quotient.

7 0
2 years ago
Jim buys two boxes of apples. 90% of the total apples are ripe.
Sedaia [141]
Jim buys 2*15=30 apples
To get the answer we have to find 90% of 30
90% = 0.9
0.9*15=27
Now we can subtract 30-27=3 - its the answer
3 0
3 years ago
Read 2 more answers
Solve the equation. Then check your solution.<br> 1. 1/4 = a +3/8
andrew11 [14]
Subtract from both sides by 3/8, and u got -1/8. If u want to check put -1/8 in a
-1/8+3/8=1/4
6 0
3 years ago
Santosh spent $200, before tax, on a DVD player and DVDs. The player cost $120, new DVDs cost $15 and used DVDs cost $5. Santosh
gizmo_the_mogwai [7]

Answer:

Santosh purchased 4 new and 4 used DVDs.

Step-by-step explanation:

From the information given, as you know that Santosh spent $200 and that the DVD player cost $120, you can say that the new and used DVDs cost $80, which can be expressed as:

15x+5y=80, where:

x refers to the number of new DVDs

y refers to the number of used DVDs

Now, as the statement indicates that Santosh purchased the same number of new and used DVDs, this means that x is equal to y and you can replace y with x and solve for x:

15x+5x=80

20x=80

x=80/20

x=4

According to this, the answer is that Santosh purchased 4 new and 4 used DVDs.

3 0
3 years ago
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