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EastWind [94]
3 years ago
12

3y-4x-29=2y-5x-4 solve by elimination

Mathematics
1 answer:
Umnica [9.8K]3 years ago
8 0

Answer:

x = 25

y = 25

Step-by-step explanation:

hope it helps!

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Cynthia invested $12,000 in a savings account. If the interest rate is 6%, how much will be in the account in 10 years by compou
sattari [20]

Answer:

In 10 years she'll have approximately $21865.4 in her account.

Step-by-step explanation:

When an amount is compounded continuously its value over time is given by the following expression:

v(t) = v(0)*e^{rt}

Applying data from the problem gives us:

v(10) = 12000*e^{(0.06*10)}\\v(10) = 12000*e^{0.6}\\v(10) = 21865.4

In 10 years she'll have approximately $21865.4 in her account.

6 0
3 years ago
Read 2 more answers
Solve the matrix equation X-A=B for X if A= [8, -2, -3, 9, -1, 5] and B= [0, 7, 2 -3, -7, -1]
djverab [1.8K]

If <em>X</em> - <em>A</em> = <em>B</em>, then <em>X</em> = <em>A</em> + <em>B</em>. So

X = \begin{bmatrix}8&-2\\-3&9\\-1&5\end{bmatrix} + \begin{bmatrix}0&7\\2&-3\\-7&-1\end{bmatrix} \\\\ X = \begin{bmatrix}8+0&-2+7\\-3+2&9-3\\-1-7&5-1\end{bmatrix} \\\\ X = \begin{bmatrix}8&5\\-1&6\\-8&4\end{bmatrix}

3 0
3 years ago
PLZ HELPP ASAP :))))))
leva [86]

Answer:

x = 91.5

Step-by-step explanation:

for 30.5 miles travelled gas used is 1 gallon ← unit rate

To calculate distance travelled multiply gas used by 30.5

For 3 gallons used

distance travelled = 3 × 30.5 = 91.5 miles

⇒ x = 91.5



8 0
3 years ago
Help [(0.3×8)+(1.5×3)]+36
Vaselesa [24]
0.3×8=2.4
1.5×3=4.5

(2.4+4.5)+36=42.9
6 0
3 years ago
Please help if you can
NemiM [27]
I am doing this test I will do it and I will give you the correct answer when I am done I think it's the last one but I am not sure soo wit an tell I finish the test 
3 0
3 years ago
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