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Elis [28]
3 years ago
8

Find the value of x (21x - 10) 19xº

Mathematics
1 answer:
schepotkina [342]3 years ago
7 0

Answer:

0

Step-by-step explanation:

First we move all the terms to the left so it will be 21x-10-(19x)=0 hope I helped good luck

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A train travels a total of 67 km at a constant speed of 110 km/h.
KengaRu [80]

Answer:

36 m 32 s

Step-by-step explanation:

67 /110 = 0.609 hour

0.609 × 60 minutes = 36.54 minutes

36 minutes + 0.54×60 second

= 36 minutes 32 seconds

4 0
3 years ago
Round 50.714 to the nearest hundredth ​
defon
The answer would be 50.71
7 0
4 years ago
Read 2 more answers
Use the given graph to determine the period of the function. 1 & 2 plz
White raven [17]
The period of the function is that distance where the function becomes equal again.
 We have then:
 Part 1:
 The period of the function is:
 T = 3
 Part 2:
 The period of the function is:
 T = 4
 Answer:
 
The period of functions 1 and 2 respectively are:
 
T = 3
 
T = 4
6 0
3 years ago
What is the value of the underline digit?<br><br> 119.65
kipiarov [429]
1 1 9 . 6 5
1 is the the hundreds place
1 is the tens place
9 is the ones place
6 is the tenths place
5 is the hundredths place
4 0
2 years ago
Hector invests $800 in an account that earns 6.98% annual interest compounded semiannually. Rebecca invests $1000 in an account
Roman55 [17]
A=P (1+r/n)^nt

A= Total amount invested, P=principal amount, r=Interest rate, n=number of time in a year when the interest is earned (for annual, n=1; for semi-annual, n=2, ...), t = time in years

In the current scenario, case 1, n=2; case 2, n=1 and A1=A2, t1=t2
Therefore,
800(1+0.0698/2)^2t = 1000(1+0.0543/1)t
Dividing by 800 on both sides;
(1+0.0349)^2t = 1.25(1+0.02715)^t
(1.0349)^2t = 1.25(1.02715)^t
Taking ln on both sides of the above equation;
2t*ln (1.0349)= ln 1.25 + t*ln (1.02715)
2t*0.0343 = 0.2231+ t*0.0268
0.0686 t = 0.2231+0.0268 t
(0.0686-0.0268)t = 0.2231
0.0418t=0.2231

t=5.337 years

Therefore, after 5.337 years or 5 years and approximately 4 months, their value of investments will be equal.

This value will be,
A=800(1+0.0698/2)^2*5.337 = $1,153.76
3 0
3 years ago
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