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CaHeK987 [17]
3 years ago
12

Substitute teachers with Silvergrove School District get paid by the day, although subs with teaching credentials earn a differe

nt amount than subs without credentials. Yesterday, 6 non-credentialed subs and 4 credentialed subs taught in the district. That cost the district $678. Today, 11 non-credentialed subs and 3 credentialed subs taught, receiving $866 from the
district. How much do subs get paid?

subs with credentials get paid $ per day,
Subs without credentials get paid $
per day.​
Mathematics
1 answer:
Firdavs [7]3 years ago
3 0

Answer:

subs with credentials get paid $87 per day. subs without credentials get paid $55 per day.

Step-by-step explanation:

let x be the cost subs with credential get paid per day and y be the cost subs without credential get paid per day

so we get

4x + 6y = 678 \\ 3x + 11y = 866

using simultaneous equation by substitution method you get x=87 and y=55

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Roger read 4 more books in July then he did in January how many books did he read in July
ivanzaharov [21]

Answer:

13

Step-by-step explanation:

If he read 9 books in january and read 4 more in july than he did in january then he read 13 books in july.

3 0
3 years ago
What is the length of the second base of a trapezoid if the length of one base is 24 and the length of the mid segment is 19
rodikova [14]
The sum of the two bases is twice the length of the mid segment
24+x=19*2
x=14
6 0
2 years ago
Triangle DEF has coordinates D (5,2), E (5,-2), and F(-4, 0). Which of the
andreev551 [17]

Answer:

Well, I don't have further explanation to this question but I know the answer which is: The x-axis is the only line of symmetry

4 0
2 years ago
PLEASE HELP ASAP!!
BabaBlast [244]

Answer:

The first term of the sequence is -120.

Step-by-step explanation:

The formula for the "nth" term of a geometric sequence is shown below:

an = a0*r^(n-1)

Where an is the nth term, r is the ratio and n is the position of the term on the sequence. For this problem we want to find what is the initial term, a0, so we will isolate it in the formula as shown below:

a0*r^(n-1) = an

a0 = an/[r^(n-1)]

We then apply the data given to us

a0 = 31.45728/[-0.8^(7-1)]

a0 = 31.45728/[-0.8^6] =31.45728 /-0.262144= -120

The first term of the sequence is -120.

4 0
3 years ago
How do you solve this?? Please help!
Aleks04 [339]

f = (f1 f2) / (f1 + f2)

f(f1 + f2) =  f1 f2

f f 1 + f  f 2 = f1 f 2

f1 f2 - f f2 = f f1

f2 (f1 - f)  = f f1

f2 = (f f1) / (f1 - f) <==== solution


5 0
3 years ago
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