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mixer [17]
3 years ago
6

5. Let f(x) = 5x + 7 and g(x) = x – 1. Find f(g(x)).

Mathematics
1 answer:
Gemiola [76]3 years ago
6 0

Answer:

5(x - 1) +7

5x - 5 + 7

5x + 2 is the solution

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I dont understand and this is very urgent so can someone help me out please?
wariber [46]

Answer:

Please Find the solution below

Step-by-step explanation:

Let us say the two equations are

x+y=5            --------------(A)

x-y=1              -------------(B)

Let us solve them for x and y by adding them

2x=6

x=3

Hence from (A)

3+y=5

y=2

Hence our solution is

x=3, y=2

Adding same number to equation (A) say 2 we get

x+y+2=5+2

x+y=5+2-2

x+y=5

Hence equation remains the same while adding same number to each side.

Same thing happens if we add same number to equation (B)

Hence we draw the conclusion that the solution remains the same if same number is added to each side of the original equation.

6 0
3 years ago
Find what w equals<br><br> 4(3w+5)−2w=70
Luba_88 [7]
4(3w+5)-2w=70
10w+20=70
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10w=50
10w/10=50/10
w=5
8 0
2 years ago
Read 2 more answers
For a field trip, the school bought 47 sandwiches for $4.60 each and 39 bags of chips for $1.25 each. How much did the school sp
NNADVOKAT [17]

Answer:  \$264.95

Step-by-step explanation:

You know that 1 sandwich costs $4.60 and the school bought 47 sandwiches.

Therefore, in order to calculate the total cost of 47 sandwiches, you need  to multiply this number of sandwiches bought by the schoole, by the cost of 1 sandwich. Then:

sandwiches=(47)(\$4.60)\\\\sandwiches=\$216.2

You know that 1 bag of chip costs $1.25 and the school bought  39 bags of chips.

So, in order to calculate the total cost of  39 bags of chips, you must  multiply the total number of them bought by the school, by the cost of 1 bag of chips.

Then:

bag\ of\ chips=(39)(\$1.25)\\\\bag\ of\ chips=\$48.75

Therefore, the total amount school spent was:

Total\ spent=\$216.2+\$48.75\\\\Total\ spent=\$264.95

8 0
3 years ago
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Convert the radian measure to degree measure. Use the value of pi found on a calculator, and round answers to two
tankabanditka [31]

Answer:

If -pi/3, the answer would be -1.05. If positive pi, then it's 1.05.

3 0
2 years ago
Would someone mind helping me? 20 points for a great and correct answer!<br> Thank you!
maria [59]
88!!! thank you i belive that is it
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2 years ago
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