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topjm [15]
3 years ago
13

How to solve 2m - 3 = 13

Mathematics
2 answers:
Virty [35]3 years ago
8 0

Answer:

m=8

Step-by-step explanation:

galina1969 [7]3 years ago
7 0

Answer: m=8

Step-by-step explanation:

2m-3=13

Add 3 to -3 and 13 to cancel the number without a variable

-3+3=0 13+3=16

2m=16

Divide 2 on each side

2/2=0 16/2=8

M=8

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2. Find an equation for the line with slope = 0 that passes through the point (-5, 7).
mel-nik [20]

Answer:

2. y = 7

3. x = 4

Step-by-step explanation:

Slope 0 is when the line is horizontal.. has a constant coordinate

(-5,7) lies on the line so the x-coordinate is 7

Equation: y = 7

A vertical line has all same x-coordinates.

Since (4,-2) is on the line, every point had x-coordinate of 4.

Equation: x = 5

5 0
3 years ago
Read 2 more answers
What is the perimeter and area formulas for a triangle? *
alekssr [168]

Answer:

Below

Step-by-step explanation:

Area of a triangle :

\frac{1}{2}  \times base \times height

Or , in simplified form :

\frac{base \times height}{2}

Perimeter :

a + b + c

3 0
3 years ago
Use the equation r =2.1x^2 -14.3x +35, where x is the number of years after 2000, to determine the revenue from the sales of U.S
xxMikexx [17]

Answer:

Step-by-step explanation:

Given that:

r = 2.1x^2 - 14.3x + 35

For year 2000; x = 0

So; r (0) = 2.1(0)^2 - 14.3(0) + 35

r (0) =  35

For year 2001; x = 1

r (1) = 2.1(1)^2 - 14.3(1) + 35

r (1) =22.8

For year 2002; x = 2

r (2) = 2.1(2)^2 - 14.3(2) + 35

r (2) = 14.8

For year 2003; x = 3

r (3) = 2.1(3)^2 - 14.3(3) + 35

r (3) = 11

For year 2005; x = 5

r (5) = 2.1(5)^2 - 14.3(5) + 35

r(5) = 16

For year 2010; x = 10

r (10) = 2.1(10)^2 - 14.3(10) + 35

r(10) = 102

For year 2018; x =18

r(18) = 2.1(18)^2 - 14.3 (18) + 35

r(18) = 458

Thus, the table can be presented as seen below.

Year      2000     2001     2002     2003     2005     2010     2018

x               0             1             2            3           5            10         18

r(x)          35          22.8        14.8        11            16         102      458

SO, we will notice that the revenue for the albums starts decreasing and when it reaches the minimum, it started increasing with increasing x.

The attribute behind this trend is because the revenue function r(x) typically implies that it is a quadratic function.

6 0
3 years ago
Yesterday, Juana sold 84 hot chocolate during her shift at work. If she worked from 7:00 am to 3:00 pm with an hour break for lu
spin [16.1K]
She worked from 7 AM to 3 PM meaning she worked a total of 9 hours. However, since she had an hour lunch break, she only worked 8 hours. 84 divided by 8 is equal to 10.5.

So she sold an average of 10.5 hot chocolates an hour.

Hope this helps! :)
8 0
3 years ago
Ernesto baked 3 cakes in 2 1/2 hours. Assume that the number of cakes baked varies directly with the number of hours. Write and
soldier1979 [14.2K]

We know that in 2 ½ hours (2.5 hours), we can create 3 cakes hence:

C = k t

where C is number of cakes, k is constant, and t is time

k = 3 cakes / (2.5 hours)

k = 1.2

C = 1.2 t

 

So for t = 7 ½ hours = 7.5 hours

C = 1.2 (7.5)

<span>C = 9 cakes in 7 ½ hours</span>

5 0
3 years ago
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