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Oliga [24]
3 years ago
15

Solve the equation. Round to the nearest thousandth. -12e-x + 8 = 7​

Mathematics
1 answer:
Marysya12 [62]3 years ago
7 0

Answer:

-12e-x + 8 = 7

-12e-x = 7-8

-12e-x = -1

12e-x = 1

e-x = 1/12

ln(e-x) = ln(1/12)

x = -ln(1/12)

x = -2.485

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Sally wants to purchase some snowboarding equipment, clothes, and a season pass. She calculates that it will cost her about $1,8
Sonja [21]

<em><u>Total Cost : 1800</u></em>


<u><em>12 dollars * 16 hours = 192 dollars earned</em></u>


<u><em>0.2 percent * 192 = 38.4 dollars saved</em></u>


A.<u><em>She earns 192 dollars every week</em></u>


B.  she will save <em><u>38.4 dollars * 7 weeks = 268.8 </u></em> dollars in a week.


C.  7 days times 4.3 weeks = 30.1 days. <em><u>30.1 days * 38.4 = 1,155.84 dollars every month.</u></em>


D. it will take her  about <em><u>2 months</u></em> to save the money. <em><u>To be exact: 1.6 months.</u></em>


Hope this helped!

8 0
3 years ago
WILL GIVE BRAINLIEST!!! ASAP PLS ANSWER
Nataly_w [17]

Answer:

D

Step-by-step explanation:

so we know that x + y is greater than or equal to 5 + 2 which is 7.

we also know that y is greater than 2.

therefore our answer cannot be A, E, or F.

now that we know that x + y is greater than or equal to 7, since y is greater than 2, x is less than 5, because 2 + 5 = 7.

that means our answer cannot be C.

the only two answers left are D and E.

if our answer was D, then we would have 3 + 6 is greater than or equal to 7.

this is true, so one of our answers is D.

if our answer was E, then we would have 2 - 5 is greater than or equal to 7.

this is untrue, so our answer is not E.

therefore our answer is D

3 0
4 years ago
2x - 4y=28+6y=10<br> Write equation in slope-intercept form
jasenka [17]

Answer:

Step-by-step explanation:

Y=1/2x - 5/2

8 0
4 years ago
8w-6(w-4)=2(w+9) <br> please help asap
uranmaximum [27]

Answer:

w = -7.04 and 1.705

Step-by-step explanation:

First lets distribute.

We have 8w-6w(w-4), so let's distribute the -6w to w and -4

8w-6w^2+24w = 2(w+9)

Now for the other side we distribute 2 to w and 9

8w-6w^2+24w = 2w +18

Now we combine like terms

6w^2+32w = 2w +18

Carry both 2w and 18 to the other side

6w^2 +30w -18 = 0

Now we can factor the equation, i used the quadratic method which is x= -b+- the square root of b^2-4ac /2a (in this case x would be w)

Plugging that in:

x= -32 +- square root of 32^2 -4(6 * -18) / 2(6)

-32 +- square root of 1024 +1728 / 12

-32 +- square root of 2752 /12

-32 +- 52.46 /12

x = -32 - 52.46/12   and  -32 + 52.46/12

x=  -84.46/12      and      20.46/12

x= -7.04  and  1.705

so w = -7.04 and 1.705

Sorry this was so complicated, but I hope this helps

6 0
2 years ago
During the month of February, Fabulous Feet Shoe Mart sold 30 pairs of red loafers. After an ad campaign to boost sales, they so
Ratling [72]
30''''''''''''''''''''

5 0
4 years ago
Read 2 more answers
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