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Kay [80]
3 years ago
8

If you take a number, times by 8 then add 6. You get the same as if you took the number multiply it by 3 then subtract 7. What i

s the number?
Mathematics
1 answer:
Gennadij [26K]3 years ago
4 0

Answer:

x = -13/5

Step-by-step explanation:

let x be the number

8x + 6 = 3x - 7

move variables to left and numbers to right

8x - 3x = - 7 -6

5x = -13

x = -13/5

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-3 \cdot f(-8) + 7 \cdot g(2) =−3⋅f(−8)+7⋅g(2)=minus, 3, dot, f, left parenthesis, minus, 8, right parenthesis, plus, 7, dot, g,
dsp73

Answer:

-22

Step-by-step explanation:

The graph from which the information is to be read is attached below.

We want to find the value of −3⋅f(−8)+7⋅g(2).

From the graph:

  • f(-8)=-2
  • g(2)=-4

Therefore:

−3⋅f(−8)+7⋅g(2)=−3(-2)+7(-4)

=6-28

=-22

−3⋅f(−8)+7⋅g(2)=-22

3 0
3 years ago
What is the equation of the line that is parallel to y=-x+4 and that passes through (-2,-2)?
Gwar [14]

Answer:

y=-x-4

Step-by-step explanation:

5 0
2 years ago
A polling company reported that 5353​% of 10181018 surveyed adults said that rising gas prices arerising gas prices are "quite a
Sophie [7]

Answer: 540

Step-by-step explanation:

Given: A polling company reported that 53​% of 1018 surveyed adults said that rising gas prices are "quite annoying."

To find: The exact value of 53​% of 1018.

53\%\text{  of }1018 = \dfrac{53}{100}\times1018  [we divide a percentage by 100 to convert it into a fraction of decimal]

=\dfrac{53954}{100}=539.54\\\\\approx540

Hence, the 540  adults said that rising gas prices are "quite annoying."

Thus, the exact value = 540

8 0
3 years ago
2) Joanie got paid $111 to babysit three kids for 6 hours. How much was she paid per hour?
Hatshy [7]

Answer:

18.5

Step-by-step explanation:

Since she was paid $111 for 6 hours, you divide 111/6 to get 18.5

6 0
2 years ago
In the diagram, point D is the center of the medium-sized circle that passes through C and E, and it is also the center of the l
mestny [16]

9514 1404 393

Answer:

  5/8

Step-by-step explanation:

The area of the smaller circles is proportional to the square of the ratio of their diameters. The two smallest circles have diameters equal to 1/4 the diameter of the largest circle. Hence their areas are (1/4)^2 = 1/16 of that of the largest circle.

Similarly, the medium circle has a diameter half that of the largest circle, so its area is (1/2)^2 = 1/4 of the are of the largest circle.

The smaller circles subtract 2×1/16 +1/4 = 3/8 of the area of the largest circle. Then the shading is 1-3/8 = 5/8 of the area of the largest circle.

3 0
3 years ago
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