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horsena [70]
3 years ago
8

If Jim is x years old now, and his sister is twice as old, how old was his sister 7 years ago?

Mathematics
2 answers:
Gnoma [55]3 years ago
8 0

Answer: 2x-7

Because the other person is wrong

Inga [223]3 years ago
4 0

Answer:

14

Step-by-step explanation:

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Linda scored 80% in her French test. If she received 60 marks, find the total number of marks possible for the test
amid [387]

Answer:

48

Step-by-step explanation:

If we know that the max possible score is 100%, and she got 80% for getting 60 marks, we can set it up as a porportion.

60 * 80 = 4800

4800/100 = 48

6 0
2 years ago
Read 2 more answers
Evaluate each function k(a)=3a+2; Find k(2)
Sergeu [11.5K]

Step-by-step explanation:

k(a) =3a+2

k(2)=3*2+2

k(2)=6+2

k(2)=8

6 0
3 years ago
HELP ME PLEASEEEEEEEEEE
Alex_Xolod [135]

Answer: The total amount the water change was -28 gallons by the end of the week <u>OR</u> The total amount the water changed decreased 28 gallons by the end of the week. Depending on how you want to word it.

Hope this helps!

Step-by-step explanation:

<u>Create you equation:</u>

x = the total amount the water changed

d = the amount of days

x = -4d

<u />

<u>Insert the known information into the equation and solve:</u>

x = -4d

x = -4(7)

x = -28

4 0
2 years ago
H(x)=4|x+4|+3 what’s the answer
MatroZZZ [7]

Answer:

To find the transformation, compare the two functions and check to see if there is a horizontal or vertical shift, reflection about the x-axis, and if there is a vertical stretch.

Parent Function:

g(x)=|x|

Horizontal Shift: Right 4 Units

Vertical Shift: Up 1 Units

Reflection about the x-axis: None

Vertical Compression or Stretch: None

Step-by-step explanation:

4 0
3 years ago
I do no understand this
vovangra [49]

The equation of a line for the given slope is y=\frac{1}{2} x+1.

Solution:

Given data:

Slope (m) = \frac{1}{2}

Point = (–2, 0)

x_1=-2, y_1=0

To find the equation of the given line in the point-slope form:

<u>Point-slope formula:</u>

y-y_1=m(x-x_1)

Substitute the given values in the formula.

$y-0=\frac{1}{2} (x-(-2))

$y=\frac{1}{2} (x+2)

$y=\frac{1}{2} x+\frac{2}{2}

$y=\frac{1}{2} x+1

The equation of a line for the given slope is y=\frac{1}{2} x+1.

5 0
3 years ago
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