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zimovet [89]
3 years ago
6

Given f(x) = 10-2x find f(7)

Mathematics
2 answers:
lara [203]3 years ago
8 0
10 - 2x
10 - 2(7)
= 10 - 14
= -4
KIM [24]3 years ago
5 0
F(7) = 10-2(7)
f(7) = 10-14
f(7) = -4

All you need to do is replace x with 7.
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Translate the following sentence into math symbols. Then solve the problem. Show your work and keep the equation balanced.
adell [148]

For this case we have to represent the following expression algebraically:

"10 less than x is -45"

So:

10 less than x is represented as: x-10

Then, the complete expression is represented as:

x-10 = -45

Adding 10 to both sides of the equation:

x = -45 + 10\\x = -35

Thus, the value of the variable is x = -35

Answer:

x = -35

4 0
3 years ago
There are 12 crayons in a box. How many boxes will be needed for 8 children if each child gets 7 crayons?
nata0808 [166]

Each child gets =7×8=56crayoms

  • One box contains 12 crayons

Total boxes

  • 56/12
  • 4.66

Round to next whole as we can't have depict

  • 5 boxes
8 0
2 years ago
13 + 11s = -15 + 8s − 20
koban [17]

<em>Answer,</em>

<em><u>S = -16</u></em>

<em>Explanation,</em>

<em><u>Step 1: Simplify both sides of the equation.</u></em>

<em>13 + 11s = − 15 + 8s − 20</em>

<em>13 + 11s = − 15 + 8s + − 20</em>

<em>11s + 13 = (8s) + (</em><em><u>− 15</u></em><em> + </em><em><u>− 20</u></em><em>) </em><em>(Combine Like Terms)</em>

<em>11s + 13 = 8s + − 35</em>

<em>11s + 13 = 8s − 35</em>

<em><u>Step 2: Subtract 8s from both sides.</u></em>

<em>11s + 13 − 8s = 8s − 35 − 8s</em>

<em>3s + 13 = − 35</em>

<em>Step 3: Subtract 13 from both sides.</em>

<em>3s + 13 − 13 = − 35 − 13</em>

<em>3s = − 48</em>

<em><u>Step 4: Divide both sides by 3.</u></em>

<em>3s/3 = −48/3</em>

<em>s = -16</em>


<u><em>Hope this helps :-)</em></u>


3 0
3 years ago
Please help will give 20 points to right answers (will give brainliest to very first correct answer) Tom walks 3.2 km every morn
nignag [31]
For this case we have the following conversions:
 1 mile = 1,609 km&#10;&#10;1 mile = 5,280 feet
 We must apply the conversions to move from kilometers to feet.
 We have then:
 (3.2) * (1 / 1,609) * (5280) = 10500.93226&#10;
 Rounding off we have:
 10501 feet
 Answer:
 
there are 10501 feet in 3.2 km
6 0
4 years ago
Solve for w <br><br> 12w -24 = 12
Mkey [24]

Answer:

12W=24+12

w=36÷12=3

.....

5 0
3 years ago
Read 2 more answers
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