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melisa1 [442]
3 years ago
8

6x+7=8x17 prove x=12

Mathematics
1 answer:
Sophie [7]3 years ago
7 0
6x + 7 = 8x - 17
6x- 8x = -17 - 7
-2x = -24 • divide both sides by -2
Thefore x = 12
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Kofi is 9 years old. Kwaku's age is two-thirds Kofi's age
Keith_Richards [23]

Answer:

<h3>3 : 2 : 4</h3>

<h2>CALCULATIONS</h2>

<h3>Let;</h3>

<h3>Kofi's age = 9</h3>

<h3>kwaku's age = 2/3 *9 = 6 </h3>

<h3>Yaw's age = 2(6) = 12</h3>

<h3>ratio of ages = 9 : 6 : 12</h3>

<h3>Simplest form = 3 : 2 : 4</h3>

4 0
3 years ago
Cal is measuring temperature changes in four substances over different time periods as part of a school project. Which data show
djyliett [7]

Answer:

C) The third table. K= 5

C)\frac{10}{2}=\frac{15}{3}=\frac{25}{5}=\frac{40}{8}=k= 5

Step-by-step explanation:

1) Below there are the missing data:

A proportional relationship through a constant k. It is obtained when we divide:

k=\frac{y}{x}

2)In this case, when we divide the temperature (T) by the time (h).

k=\frac{T}{h}

3)So, examining the table below we are searching for a ratio k common to all measures (temperatures over hour).

A) \frac{12}{3}\neq\frac{25}{5}\neq\frac{36}{6}\neq\frac{81}{9}\\B) \frac{22.5}{3}\neq\frac{30}{4}\neq\frac{52.5}{7}\neq\frac{67.5}{8}\\C)\frac{10}{2}=\frac{15}{3}=\frac{25}{5}=\frac{40}{8}=k= 5\\D)\frac{8.5}{2}\neq\frac{22.5}{5}\neq\frac{28.5}{7}\neq\frac{36}{8}

3 0
3 years ago
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andrew11 [14]

Answer:

16

Step-by-step explanation:

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The base is OT.

base = OT = 4

The height is the vertical segment along the y-axis, from the bottom base to the top base.

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area = 16

4 0
3 years ago
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Vikentia [17]

Answer:

37,143

Step-by-step explanation:

Supplementary angles add to 180 degrees

Let x be one angle

x+106 is the other angle

x + x+106 = 180

Combine like terms

2x+106 =180

Subtract 106 from each side

2x+106-106 =180-106

2x = 74

Divide by 2

2x/2 =74/2

x = 37

The other angle is 37+106 =143

8 0
3 years ago
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Harlamova29_29 [7]
Last one is the correct one
4 0
2 years ago
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